TemBreak 2 CPB draft

M
MODbreak
Moulded Case Circuit Breakers
Technical Catalogue
An economical and flexible line of MCCBs for general purpose applications
POWER DISTRIBUTION AND PROTECTION
Moulded Case Circuit Breakers, Chassis, Transfer Switches
NHP Electrical Engineering Products Pty Ltd
5th September 2014
1
Sales 1300 NHP NHP
Sales 0800 NHP NHP
nhp.com.au
nhp-nz.com
M
MODBreak MCCBs
CONTENTS
MODbreak MCCBs
Page Number
Product overview
3 pole MCCBs
4 pole MCCBs
Internal accessories
External accessories
MB Chassis
MBC Chassis
Transfer switches
Transfer switch controllers
MCCB ratings chart
Selectivity and Cascade tables
MODcurve Selectivity Software
Motor start tables
Watts loss
Let through and cut off values
Temperature ratings
Characteristic curves – thermal magnetic MCCBs
Characteristic curves – electronic MCCBs
Electronic MCCB OCR setting
Dimensions
MCCBs and accessories
Transfer Switches
MODbreak OCR Tester
MCCB installation details
3
5
6
7
8 - 13
14 - 15
16 - 20
21
22 - 30
31
32 - 35
36
37 - 38
39
39
39
40
41
42 - 45
46 - 54
55 - 58
59 - 60
61 - 67
2
M
MODbreak Moulded Case Circuit Breakers
MODbreak range overview











From 16 A to 1250 A
3 Pole & 4 Pole
Choice of 36kA and 50kA breaking capacities.
Icu = Ics
With Electronic and Thermal Magnetic protection relays
MCCBs for motor backup protection
MCCBs for distribution systems
Manual, rotary handle or motorised versions
Wide range of internal and external accessories
Chassis options
Transfer switch and controllers
MB2
MB3
MB4
MODbreak frame sizes and ampere ratings
MB2
Rated current
Over Current Relay
63 (50A to 63A), 80, 100, 125, 160, 200, 250 A
Thermal magnetic
Rated current
Over Current Relay
320, 400, 500, 630 A
Thermal magnetic
40 (16A to 40A), 63, 100, 160, 250 A
Electronic
MB3
400, 630 A
Electronic
MB4
800, 1000, 1250 A
Electronic
Rated current
Over Current Relay
Thermal Magnetic Over Current Relay
Features of Thermal Magnetic OCR






MTX1 Electronic Over Current Relay
Adjustable overload setting 80% to 100% of ln
Adjustable magnetic short circuit setting 6 – 10 ln
Push to trip button
True RMS sensing
Infinite adjustment thermal and magnetic dials
Refer ratings chart for additional setting details
Features of MTX1 Electronic OCR












3
Overload protection LT with selectable inverse time delay
Adjustable Short Time ST characteristic
Short circuit (ST) characteristic with selectable time delay
LT and ST characteristic can be switched OFF
Fixed instantaneous trip
DIP switch OCR setting
Push to trip button
Thermal memory enable / disable
Power ON / pick-up LED
LED blinks at 85% and rapidly at 120% Ir prior to tripping
True RMS sensing
Refer ratings chart for additional setting details
M
MODbreak Moulded Case Circuit Breakers
Faster tripping
The unique speed contact system accelerates the opening of contacts during
short circuit. This ensures faster tripping an ultimate current limiting feature.
The result-very low let-through, cut-off current and fault clearing time
Mechanical Anti-reclosing
This unique feature ensures that under short circuit conditions, the contacts open
and latch even before the release gives a trip command to the mechanism.
This avoids contact re-closing and bounce
Low Watts loss
The entire current carrying path is optimally designed to achieve very low watt loss.
Silver contacts offer low contact resistance, which help to achieve a low heat connection.
Positive Isolation
The MCCB toggle indicates the true position of the main
switching contacts
Double Insulation
Internal accessories are housed in insulated casings to ensure
a first level of insulation. When the front cover is opened for
the fixing of internal accessories, the MCCB is totally insulated
ensuring double insulation.
Standards Compliance
MODbreak complies with AS 60947-2, AS/NZS 3947-6, IEC
60947, and the European CE Mark.
Forward or Reverse connection
MODbreak MCCBs can be forward or reverse connected to allow
reversal of line and load connections. This is especially important
for MB and MBC chassis where MODbreak MCCBs are reverse
connected on the chassis as standard.
Mounting angle
⁰
Vertical and 90 to the left or right
4
M
MODbreak Moulded Case Circuit Breakers
Features
 Electronic and thermal magnetic types
 3 pole types
 36kA and 50kA interrupting capacities
 Fault interruption ratings Icu = Ics
 Internal and external accessory range
 Cascading, Selectivity, motor starting and other data available
 NHP MODcurve selectivity and Cadblocks available
 Chassis options for 3 pole MCCB’s up to 630A frame
 Transfer switches available to 630A frame
Quick reference
guide
MB2 250 MCCB
3 pole MCCB’s
Ampere
Frame
250AF
250AF
250AF
250AF
630 AF
630 AF
630AF
630AF
800 / 1250AF
Trip unit
Rating (A)
63
100
125
160
250
63
80
100
125
160
250
40
100
250
40
100
250
320
400
630
320
400
630
400
630
400
630
800
1000
1250
415V kA
ICU
ICS
36
36
MCCB type
Current
Adjustment
Thermal Magnetic
80-100%
50
50
Thermal Magnetic
80-100%
36
36
Electronic
40-100%
50
50
Electronic
40-100%
36
36
Thermal Magnetic
80-100%
50
50
Thermal Magnetic
80-100%
36
36
Electronic
40-100%
50
50
Electronic
40-100%
50
50
Electronic
40-100%
Catalogue
Number
MB263D3TM
MB2100D3TM
MB2125D3TM
MB2160D3TM
MB2250D3TM
MB263N3TM
MB280N3TM
MB2100N3TM
MB2125N3TM
MB2160N3TM
MB2250N3TM
MB240D3SE
MB2100D3SE
MB2250D3SE
MB240N3SE
MB2100N3SE
MB2250N3SE
MB3320D3TM
MB3400D3TM
MB3630D3TM
MB3320N3TM
MB3400N3TM
MB3630N3TM
MB3400D3SE
MB3630D3SE
MB3400N3SE
MB3630N3SE
MB4800N3SE
MB41000N3SE
MB41250N3SE
Ordering notes:
1. Refer following pages for internal and external accessories, chassis and transfer switch options.
2. Refer following pages for Selectivity and Cascade tables.
5
3 pole
Price $
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
M
MODbreak Moulded Case Circuit Breakers
Features
 Electronic and thermal magnetic types
 4 pole types
 36kA and 50kA interrupting capacities
 Fault interruption ratings Icu = Ics
 Internal and external accessory range
 Cascading, Selectivity, motor starting and other data available
 NHP MODcurve selectivity and Cadblocks available
 Transfer switches available to 630A frame
250A 4 pole MODbreak MCCB
4 pole MCCB’s
Ampere
Frame
250AF
250AF
250AF
250AF
630 AF
630 AF
630AF
630AF
800 / 1250AF
Trip unit
Rating (A)
63
100
125
160
250
63
100
125
160
250
40
100
250
40
100
250
320
400
630
320
400
630
400
630
400
630
800
1000
1250
415V kA
ICU
ICS
MCCB type
Current
Adjustment
36
36
Thermal Magnetic
80-100%
50
50
Thermal Magnetic
80-100%
36
36
Electronic
40-100%
50
50
Electronic
40-100%
36
36
Thermal Magnetic
80-100%
50
50
Thermal Magnetic
80-100%
36
36
Electronic
40-100%
50
50
Electronic
40-100%
50
50
Electronic
40-100%
Catalogue
Number
MB263D4TM
MB2100D4TM
MB2125D4TM
MB2160D4TM
MB2250D4TM
MB263N4TM
MB2100N4TM
MB2125N4TM
MB2160N4TM
MB2250N4TM
MB240D4SE
MB2100D4SE
MB2250D4SE
MB 240N4SE
MB2100N4SE
MB2250N4SE
MB3320D4TM
MB3400D4TM
MB3630D4TM
MB3320N4TM
MB3400N4TM
MB3630N4TM
MB3400D4SE
MB3630D4SE
MB3400N4SE
MB3630N4SE
MB4800N4SE
MB41000N4SE
MB41250N4SE
Ordering notes:
1. Refer following pages for internal and external accessories and transfer switch options.
2. Refer following pages for Selectivity and Cascade tables.
6
4 pole
Price $
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
M
MODbreak Moulded Case Circuit Breakers
Internal Accessories – MODbreak MCCBs
Common Internal accessories
 Common Internal accessories, except UVTs.
 Field fit by the user.
 Internal accessories easily clip into an MCCB, and only require
a flat or Posidrive screwdriver to first remove the MCCB cover.
 No live parts are exposed during accessory fitting.
 Internal accessories come with 600mm wire leads as standard.
Accessory types
 Auxiliary Contacts 1 C/O and 2C/O
 Auxiliary Contact 2 C/O
 Trip Alarm Contact
 Auxiliary & Trip Alarm Contact
 Shunt Release
 Under Voltage Release
Easy fit clip-in accessories
MCCBs with accessory covers removed, showing internal
accessories fitted
Accessory Electrical Data
Shunt Trip
110 - 415VAC
15mA at 250V AC
UVT
240V AC
1.4 VA
5A at 250V
Auxiliaries/Alarms
3A at 250V
(common ratings)
0.5A at 250V
1A at 250V
Excitation current
Latching current
AC Resistive
AC Inductive
DC Resistive
DC Inductive
MCCB internal accessory fitting configurations
Internal accessory selection catalogue numbers
Accessory type
Description
Shunt Trip
Under Voltage Trip
Auxiliary & Alarm contacts
Suits
Catalogue Number
110 – 415V AC, 50/50Hz
MB2, 3, 4
MBSHUNTAC110415
240V AC, 50/60Hz
240V AC, 50/60Hz
1 C/O Auxiliary
2 C/O Auxiliary
1 C/O Aux – 1C/O Alarm
1 C/O Alarm
MB2, 3
MB4
MB2, 3, 4
MB2, 3, 4
MB2, 3, 4
MB2, 3, 4
MB23UVT240VAC
Refer NHP
MBAUX1C
MBAUX2C
MBAUX1CALRC
MBALR1C
7
M
MODbreak Moulded Case Circuit Breakers
External Accessories – MODbreak MCCBs


External accessories are field fitted, except for motors which are fitted by NHP.
Refer following pages for additional product information.
250A
MB2
Accessory type
Price
$
320A, 400A, 630A
MB3
Price
$
800A, 1250A
MB4
Price
$
Handle Operators
Extension handle and shaft
 OFF lockable as standard with up to 3 padlocks or hasps, IP54, door interlocking.
 Additional ON position locking available via field conversion to obtain OFF/ON locking.
Lock OFF
MB2HANDLESTD
0.00
MB3HANDLESTD
0.00
MB4HANDLESTD
0.00
Direct mount handle
 Padlockable up to 3 locks, no door interlocking,
Lock OFF handle
MB2HANDLEDIRECT
0.00
MB3HANDLEDIRECT
0.00
-
0.00
MCCB toggle lock – captive
Suits single 5-7 mm padlock
MB2CAPLOCK
0.00
MB3CAPLOCK
0.00
MB4CAPLOCK
0.00
Motor operator
 Includes motor and internal MCCB mounted motor indication flag auxiliary block – must be NHP factory or branch installed
240V AC control, 50-60Hz
MB2MOTOR240VAC
0.00
MB3MOTOR240VAC
0.00
-
Terminal covers & interpole barriers
 Terminal covers supplied in sets of 2, IP20 entry insert covers supplied as standard
 Interpole barriers supplied with new MCCBs as standard for the line side only, 1 per pole.
Standard 3P
Standard 4P
MB2TCSTD3P
-
0.00
0.00
MB3TCSTD3P
-
0.00
0.00
MB4TCSTD3P
MB4TCSTD4P
Wide 3P
Wide 4P
MB2TCWIDE3P
MB2TCWIDE4P
0.00
0.00
MB3TCWIDE3P
MB3TCWIDE4P
0.00
0.00
-
Flush 3P
Flush 4P
Interpole barrier (set of 3)
MB2TCFLUSH3P
MB2POLEBARRIER
0.00
0.00
MB3TCFLUSH3P
MB3POLE BARRIER
0.00
0.00
MB4POLEBARRIER
Attached busbar
3 pole set of 3
4 pole set of 4
MB2ATTBAR3P
MB2ATTBAR4P
0.00
0.00
MB3ATTBAR3P
MB3ATTBAR4P
0.00
0.00
MB4FCB3P
MB4FCB4P
Mechanical Interlock
Rear mounting, MCCB
mounting plate included
MB2MECHINT250
-
0.00
MB3MECHINT400
MB3MECHINT630
0.00
0.00
-
Electronic MCCB OCR tester
MBOCRTESTER
8
0.00
0.00
0.00
0.00
M
MODbreak Moulded Case Circuit Breakers
External Accessories – MODbreak MCCBs
Extension shaft handles
 Available for MCCBs to 1250A
 Mounts on front of MCCB without removal of accessory cover
 Padlock OFF as standard
 Padlock OFF handle field conversion to padlock ON
 Suits up to three 5-7mm padlocks or multi lock hasps
 Door interlock in ON position, selectable for padlock OFF.
 Side switch selector prevents or allows door opening if padlocked
 Easy to see ON / OFF / TRIP indication
 MCCB rating label can be seen with handle installed
 Push to trip button accessible while handle installed
 IP 54 degree of protection when door mounted
 1.5mm diameter Door Defeat access hole at base of handle
 Handle kit includes 275mm x 10mm2 shaft, handle, MCCB mechanism
OFF Padlocking and use of the door interlock feature
Direct mount handles
 Available for MCCBs to 630A
 Mounts on MCCB without removal of accessory cover
 Handles are padlockable OFF as standard
 Handles can be field converted to lock ON
 Suits up to three 5-7mm padlocks or multi lock hasps
 Handles are not door interlocking.
 Easy to see ON / OFF / TRIP indication
 MCCB rating label can be seen with handle installed
 Push to trip button accessible while handle installed
 IP 54 degree of protection
9
M
MODbreak Moulded Case Circuit Breakers
External Accessories – MODbreak MCCBs
Captive Toggle Padlocking Mechanism
Consists of a brushed stainless steel lock attachment, which can be easily customer fitted via 4 hexagonal head mounting screws.
Features
 Suitable for MB2, MB3 and MB4 MCCBs 20A to 1250A. Types: MB2CAPLOCK, MB3CAPLOCK, MB4CAPLOCK.
 MB2 toggle lock bracket fits within the MCCB’s 45mm DIN cut-out for door or escutcheon mounting.
 MB3 toggle lock fits within the MCCBs standard 78mm toggle area cut-out.
 If an MCCB trip occurs, a reset operation can be performed without the need to remove the lock captive attachment.
 No special spacing required between side by side mounted MCCBs.
Captive lock attachment fitted
Lock OFF
10
Lock ON
M
MODbreak Moulded Case Circuit Breakers
External Accessories – MODbreak MCCBs
Motor Operators
Motor operators
 For 250AF and 630AF MCCBs.
 ON / OFF & Charged/Discharged indication.
 Spring charge mechanism.
 Selector switch for Auto/Manual operation and padlocking.
 Padlock facility for locking in OFF position (up to 3 padlocks).
 Resetting time < 250msec & Closing time < 90 msec.
 High mechanical & electrical endurance.
 Accessible internal back up fuse for extended motor life.
 Access to the protection setting on MCCB possible when motor fitted.
 True indication for ON/OFF & Discharged & charged.
 MCCB right side internal accessory space occupied when motor fitted.
 Replaceable 1.6A fuse as standard.
 OFF/ON terminal wiring is activated by via dry contact closure only.
 MBMOT motor operators are NHP factory or branch fit.
Motors or handles can be fitted to interlocked MCCBs
MB MOT Motor operator electrical & mechanical data
MB2
Operating voltage (V AC)
240
Operating voltage (%)
85 – 110%
Closing time (ms)
60
Opening time (ms)
300
Power consumption (VA)
350
Life / No. of operations
12000
Door cut out (mm x mm)
96 x 96
IP protection, on the front
IP30
Operating frequency
2 per min
Minimum control impulse time (ms)
300
Motors or handles can be fitted to interlocked MCCBs
11
MB3
240
85 – 110%
90
450
500
10000
96 x 96
IP30
1 per min
450
M
MODbreak Moulded Case Circuit Breakers
External Accessories – MODbreak MCCBs
Mechanical interlocks
Allows two MCCBs to be mechanically interlocked using a base plate
and rear walking beam interlock, in a side by side configuration.











For 250AF and 630AF MCCBs
Rear walking beam mechanical interlock supplied on mounting plate
Interlock kit plate pole configurations : 3P+3P, 3P+4P, 4P+3P, 4P+4P
Mixed frame sizes cannot be interlocked
Customer can fit interlock using knockout on rear of MCCB
Internal and external accessories to be fitted
Mechanically interlocked 4P+3P MCCBs
Motor operators available for transfer switching
MCCB right side internal accessory pocket occupied when motor fitted
Manual Transfer Switches (MTS) using toggles or handles are customer assembled.
Basic or Automatic Transfer Switches using motors and external controllers are NHP factory assembled.
Refer following pages for information on order Basic (BTS) and Automatic transfer switches (ATS).
Mechanical Interlock fitting

Fail Safe rear walking beam mechanical interlock

Interlock supplied pre-mounted to a metal mounting plate

Plate suits MCCB poles: 3P- 3P, 3P- 4P, 4P- 3P and 4P- 4P

MCCBs of different frame sizes cannot be interlocked

User fit interlock via removal of rear MCCB knockouts

Interlocking two MCCBs takes around 5-10 minutes

MCCB toggle only operation if required

MCCBs accept motors or handles

Suitable for mounting MCCBs through an escutcheon or door cut-out

250AF MCCB have a DIN, 47mm size toggle cut-out
Motors or handles can be fitted to interlocked MCCBs
Knockout at rear of MCCB
MCCBs mounted to the front of MCCB plate with actuators inserted knockout at rear of MCCB
12
M
MODbreak Moulded Case Circuit Breakers
External Accessories – MODbreak MCCBs
Terminal cover options
 Available for MCCBs 250AF to 1250A
 Wide, standard, flush terminal covers
 Wide covers physically longer for larger cables or busbars
 3 and 4 pole covers
 Covers come complete with IP20 end cover knock outs
 Increases IP Form for switchboard construction
 Rigid rubber interpole barriers supplied with MCCBs as standard
 Covers designed for chassis mounted MCCB
 Hole per pole for electrical probe testing.

Front IP covers & interpole barriers are supplied with new MCCBs as standard
Standard cover
Flush cover
13
IP20 finger touch protection
using MB terminal covers
Wide cover
M
MB800 MCCB Chassis
MODbreak MB chassis assemblies are designed to suit MODbreak
Moulded Case Circuit Breakers. The busbars are fully dipped and type tested,
and are suitable for 250AF MCCB’s rated 63A to 250A. (50A to 250A)
MB 18 way Chassis for 250AF MCCB’s
MB 12 way chassis showing MCCBs mounted, including flush
terminal covers MB2TCFLUSH3P on the user connection side.
The same covers can also be fitted to the Tee Off connection side
for IP20 touch protection
Poles
MCCBs on
each side
Total MCCBs
on chassis
Chassis pan
Height (mm)
Pan Width
Catalogue Number
6
12
18
24
30
36
42
48
60
72
1
2
3
4
5
6
7
8
10
12
2
4
6
8
10
12
14
16
20
24
105
210
315
420
525
632
737
840
1050
1260
370
370
370
370
370
370
370
370
370
370
MB80006U
MB80012U
MB80018U
MB80024U
MB80030U
MB80036U
MB80042U
MB80048U
MB80060U
MB80072U
NOTES:
1.
Height dimensions are for pan size only. For cut-out details and other dimensions refer to following page.
2.
An MB chassis metal pan width is 370mm.
With MCCBs mounted on both sides the total width is 380mm.
With flush terminal covers added to the MCCB load side, the total width is 405mm.
3.
Terminals extend 53.5mm beyond the dimensions shown above, top and bottom.
Chassis technical details:
Chassis type
Amps
kA
Suit MCCB
MB 800
800
800
36 kA for 1 second
40 kA for 0.5 second
MB250
14
MCCB dimensions
H
W
D
163
105
96
M
MB800 MCCB Chassis
Dimensions mm:
MB chassis with MB2TCFLUSH3P
cover shown fitted to chassis Tee Off
side of MCCB
15
M
MBC
MCCB High Current Chassis
Features:
 Suits 250AF and 630AF MCCBs with trip unit ranging 50A to 630A.
 Double sided chassis types for 3 pole MCCBs
 1250 A, 1600 A or 2200 A rated main bars.
 11 enclosure sizes to suit application height space.
 Front connect tags supplied as standard.
 Complies with AS/NZS 3439, AS/NZS 3000 – 2007.
 Form of separation can be up to 4bih. AS/NZS 3439.1: 2000 (Annex ZF).
 Circuit breakers are reverse fed as standard.
 Assembled to order from stocked parts by NHP
Chassis Box Selection (no Tee offs fitted, specify from next page)
Chassis Size
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
10
11
Main bar rating
(A)
Icw kA
for 1 sec
1250A
65
2 x 10x20mm bars
1600A
65
2 x 10x30mm bars
2200A
2 x 10x50mm bars
65
MCCB unit
space (mm)
15 U
18 U
21 U
24 U
27 U
30 U
33 U
36 U
39 U
42 U
45 U
15 U
18 U
21 U
24 U
27 U
30 U
33 U
36 U
39 U
42 U
45 U
15 U
18 U
21 U
24 U
27 U
30 U
33 U
36 U
39 U
42 U
45 U
Overall height
(mm)
610
718
826
932
1030
1150
1258
1366
1474
1582
1690
610
718
826
932
1030
1150
1258
1366
1474
1582
1690
610
718
826
932
1030
1150
1258
1366
1474
1582
1690
Notes:




Height excludes extended and attached busbar.
Overall chassis depth when MCCB’s are fitted is 269 mm.
Refer next page for chassis Tee Off ordering details.
For detailed dimensions, escutcheon/door cut-outs, and ordering form, refer following pages.
16
Catalogue
Number
MBC12153
MBC12183
MBC12213
MBC12243
MBC12273
MBC12303
MBC12333
MBC12363
MBC12393
MBC12423
MBC12453
MBC16153
MBC16183
MBC16213
MBC16243
MBC16273
MBC16303
MBC16333
MBC16363
MBC16393
MBC16423
MBC16453
MBC22153
MBC22183
MBC22213
MBC22243
MBC22273
MBC22303
MBC22333
MBC22363
MBC22393
MBC22423
MBC22453
Price
$
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
M
MBC
MCCB High Current Chassis
TEE OFF’s
MBC Chassis and Tee Offs are NHP FACTORY ASSEMBLED
Frame
MB2 250 Narrow
MB3 400-630 Narrow
MB3 400-630 Wide
MCCB Amp
Frame (A)
250
400-630
400-630
MCCB width
(U = units)
3U
4U
6U
Double sided
Cat. No.
MBCDN2503
MBCDN6303
MBCDW6303
Price
$
0.00
0.000.00
0.00
Ordering notes
1.
Add Tee Offs as required to the chassis enclosure to complete the components list required.
2.
1 x double sided tee off kit will accommodate 2 MCCBs, 1 on each side of the chassis.
3.
For ordering MBC Chassis an ordering layout form is to be used.
4.
Add the price of the tee offs required to the price of the chassis to calculate a list price.
5.
MB3 400 / 630A MCCB’s fitted with a same width narrow cover
= 4 units in width
6.
MB3 400 / 630A MCCB’s fitted with a “wide” width cover
= 6 units in width
7.
Bottom or top extended main bar are optional.
8.
For MCCB terminal cover selection use refer MCCB accessories.
9.
Only circuit breakers of the same width can be mounted opposite each other.
Component selection example:
Main chassis components:
Chassis
Chassis box 1600 A, less tee offs
630 A tee off set wide cover
400 A tee off set narrow cover
250 A tee off set
250 A tee off set
components
MBC16183
MBCDW6303
MBCDN6303
MBCDN2503
MBCDN2503
Quantity
1
1
1
1
1
Terminal covers are ordered as required for the MCCB line and load
terminals. Flush covers are used for the chassis tee off side.
Testing:
The MBC (HC) chassis has been unconditionally type tested (no MCCBs fitted) by NHP, with an Icw short time rating of 65 kA for 1
second.
17
M
MBC
High Current Chassis Order Form
Customer:
Account No:
Deliver to:
Order No:
Quantity:
Price:
Contact:
$
/
Req'd Delivery:
UNIT S
/
CHASSIS SPECIFICATION
1
2
3
POLES
4
MCCB
5
Config.
X
X
3 Pole - only
Double Sided - only
6
Top Entry only
7
Chassis
Supply
Connection
8
9
Bottom Entry only
Top and Bottom Entry
No Extended Bar - Connect via MCCB
10
11
RATING
65kA for 1
sec
12
13
1250 Amp
2 -10 x 20 mm main bars
1600 Amp
2 -10 x 30 mm main bars
2200 Amp
2 -10 x 50 mm main bars
14
Size 1
15
Qty
Size 3
Units
Total
Type
x
3
=
250A
MB2 Narrow Terminal Cover
x
5
=
250A
MB2 Wide Terminal Cover
19
x
4
=
400A
MB3 Narrow Terminal Cover
20
x
6
=
400A
MB3 Wide Terminal Cover
x
4
=
630A
MB3 Narrow Terminal Cover
x
6
=
630A
MB3 Wide Terminal Cover
17
Size 2
3 POLE TEE OFFS - DOUBLE SIDED
610 mm
16
18
718 mm
21
826 mm
22
23
Size 4
24
934 mm
Total units
25
* 37.5mm gap each side of MB2 using wide covers (total 75mm)
26
Size 5
27
1042 mm
* 37.5mm gap each side of MB3 using wide covers (total 75mm)
28
29
Size 6
30
1150 mm
NOTES
31
32
Size 7
33
1258 mm
34
35
Size 8
36
1366 mm
37
38
Size 9
39
1474 mm
* Pan Width = 440 mm including mounting channel
41
Size 10
* Chassis are supplied crated and without MCCB's fitted
* Circuit breakers to be fitted reverse fed by customer
40
42
1582 mm
* Depth = 269 mm from rear to escutcheon
* 1 Unit = 36 mm
43
44
Size 11
45
1690 mm
TORQUE SETTINGS
MCCB LINE SIDE BOLTS
250 AMPS
M6
7Nm
400 - 630 AMPS
M8
14Nm
MAIN BAR CONNECTIONS
M10
44Nm
Document version 11/02/13
CUSTOMER REFERENCE DRAWINGS
In tern al Use O n ly
NHP Branch
MOUNTING, CUT OUT AND CONNECTION DETAILS
Chassis Reference Drawing
MD I00581200
Rev 0
NHP Contact
MBCD250 Narrow Tee Off Dwg Set
MD L005080
Rev 2
Sales Order
MBCDN630 Narrow Tee Off Dwg Set MD L005083
Rev 2
Works Order
MBCDW630 Wide Tee Off Dwg Set
Rev 2
Requested Ex works Date:
MD L005086
18
/
/
M
MBC
MCCB High Current Chassis
Example photo, showing an MBC chassis with MCCBs using direct mount handles, and with terminal covers installed.
The terminal covers are fitted to the tee off side and user connection side of the MCCBs.
The top two MCCBs are fitted with WIDE terminal covers, and the others with same width standard covers.
The tee off side of the MCCBs have flush terminal covers fitted which cover the MCCB terminal area, as well as the exposed tee off
chassis connection points.
Isolator option for Chassis
Where a user wishes to use a load break switch to isolate the chassis, NHP can supply a Socomec 1600A load break switch, plus
busbar connection kit which consists of a set of bars.
MBC double sided chassis showing MCCBs with direct
mount handles and terminal covers fitted. Refer accessories
pages for cover and other accessories selection.
MBC double sided chassis showing Socomec SLB16003P
isolator using a link kit as shown. A clear polycarbonate
cover for the link kit is also available (not shown).
Link kits are available for chassis with 1250A And 1600A
main bars. 2200A main bar kits are not available at this
time. Additional details are available on request.
Catalogue numbers of link kit parts:
Link kit
Link kit cover
HCCONNTAG16003P
HCSLB1600C
19
M
MBC
MCCB High Current Chassis
Reference dimensions
MBC Chassis cut-out details
Notes
1.
2.
3.
1600A Chassis shown above with 2 off 30mm x 10mm busbars per phase.
Other busbar options: 1250A busbars, 2 off 20mm x 10mm per phase
2200A busbars, 2 off 50mm x 10mm per phase
Cut out dimensions are centred on the MCCB toggles.
20
M
MODbreak
MCCB Transfer Switches
Basic Transfer Switches
MODbreak transfer switches are available from 20A to 630A, and consist of mechanically and electrically interlocked circuit breakers,
with motors fitted. The transfer switches come pre-wired on a metal panel.
Automatic Transfer Switches
Basic Transfer Switches can be coupled with either TemLogic TL101CIP electronic or TLP2 relay timer changeover controllers to
enable Automatic Transfer Switching (ATS). The changeover controller automatically commences a change over to a standby power
supply in the event of power failure.
Manual Transfer Switches
MODbreak Manual Transfer Switches are available from 20A to 630A, and consist of rear walking beam mechanically interlocked
circuit breakers on a metal mounting plate. Manual transfer switches are assembled by the user, using interlock kits and MCCBs that
are ordered from the MCCB and accessories pages in this catalogue.
Basic Transfer Switches (BTS)
Features:
 Poles: 3P+3P or 4P+4P MCCB configurations.
 Pre-assembled on a mounting plate
 Rear walking beam interlock used
 Pre-wired with electrical interlocking
 240V AC control motor operated MCCBs
Ordering:
 MB transfer switches are manufactured to order.
 Contact NHP for availability.
 TM = Thermal Magnetic, E = Electronic Trip Unit.
BTS = Basic Transfer with motors
BTS selection chart and Catalogue numbers
MCCB’s used
Ampere
Range
MB263N_TM
MB263N_TM
MB263N_TM
MB263N_TM
MB263N_TM
MB240N_SE
MB2100N_SE
MB2250N_SE
MB3320N_TM
MB3400N_TM
MB3630N_TM
MB3400N_SE
MB3630N_SE
50.4-63
80-100
100-125
128-160
200-250
16-40
40-100
100-250
256-320
320-400
504-630
160-400
252-630
Fault I/C
415V kA
Icu/Ics
OCR
Type
3P Outline Dims.
(mm)
H
W
D
50
TM
305
209
235
50
E
336
237
241
50
TM
550
433
341
50
E
550
433
341
21
3 Pole
BTS Cat No.
Price
$
4 Pole
BTS Cat No.
Price
$
MBTSTM6333
MBTSTM10033
MBTSTM12533
MBTSTM16033
MBTSTM25033
MBTSE4033
MBTSE10033
MBTSE25033
MBTSTM32033
MBTSTM40033
MBTSTM63033
MBTSE40033
MBTSE63033
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
MBTSTM6344
MBTSTM10044
MBTSTM12544
MBTSTM16044
MBTSTM25044
MBTSE4044
MBTSE10044
MBTSE25044
MBTSTM32044
MBTSTM40044
MBTSTM63044
MBTSE40044
MBTSE63044
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
M
MODbreak
Transfer Switch Controller
Type: TL101CIP
The TemLogic 2 TL101 automatic transfer switch (ATS) controller will control & supervise the
primary & secondary power of an installation and initiate transferring of the mains to a backup source in the event of main source interruption. The utility changeover, from one power
source to the other can be fully automatic or manually operated. The logic controller includes
the necessary functions to monitor energy distribution systems and generating sets, and
MODbreak transfer switch.
Automatic transfer takes place when predefined conditions entered by the user take place
such as:

Power failure of one power source

Power supply voltage/frequency etc. not falling within programmed limits

The need to use the most economical power source
The TL101CIP is programmed from the front panel with visual led indication. Alternatively, the circuit breakers can be manually
controlled using the function keys on the front face of the controller.
The list below details typical applications:





Utility-utility, utility to generator or generator to generator changeover
Generator management with automatic test and rotation emergency
Three phase, two phase or single-phase voltage controls
L-L voltage and/or L-N voltage control
Controls of minimum voltage, maximum voltage, phase loss, asymmetry, minimum frequency, maximum frequency, with
independent enable and delay
Technical Features

Flush mount 144 x 144 mm housing

Plug in removable connections

Phase to phase voltage measure inputs: 80-800VAC

Voltage transformer programming

TRMS voltage measure

Frequency measurement 45-65Hz

Control function: phase sequence, phase loss, max/min voltage, asymmetry, max/min frequency

Two displays for voltage/frequency viewing

8 digital programming inputs

7 relay programmable outputs

RS232 interface
Description
Catalogue Number
Price $
Controller with interface panel
TL101CIP
0.00
22
M
MODbreak
Transfer Switch Controller
Type: TLP2
Timer / Relay logic controller
The basic timer / relay logic controller includes the following
standard features:








Voltage and phase sequence sensing relay
Time delay normal to emergency
Time delay emergency to normal
Common power supply relays
Normal supply phase sequence relay
4 supply fuses
Control wiring terminals
A 4 position mode selector switch is provided loose (Manual / Automatic / Test / Off)
Description
Catalogue Number
Controller for MODbreak Transfer Switches
TLP2
23
Price $
M
MODbreak
Wiring Diagrams
MB MOT Motor Operators
MB MOT Motor Operator for MB2 and MB3 MCCBs
Transfer Switch with remote electrical control - non automatic switching
24
M
MODbreak Automatic Transfer switch TL101CIP Controller
Wiring, components and dimensions
25
M
MODbreak Automatic Transfer switch TL101CIP Controller
Wiring, components and dimensions
26
M
MODbreak Automatic Transfer switch TL101CIP Controller
Wiring, components and dimensions
27
M
MODbreak Automatic Transfer switch TLP2 Controller
Wiring, components and dimensions
28
M
MODbreak Automatic Transfer switch TLP2 Controller
Wiring, components and dimensions
29
M
MODbreak Automatic Transfer switch TLP2 Controller
Wiring, components and dimensions
30
M
MODbreak MCCB ratings chart
MCCB Ampere Frames (AF)
MCCB Types
Poles
250 A
400A
MB2
D
630A
MB3
N
D
3 or 4
800/1000/1250
MB3
N
3 or 4
D
MB4
N
3 or 4
OCR (Over Current Relay) data
Current Ratings of OCRs (A)
OCR types
63, 80, 100, 125, 160, 200, 250
320, 400
630 A
Thermal Magnetic & Electronic Thermal Magnetic & Electronic Thermal Magnetic & Electronic
Thermal magnetic dial adjustment range
0.8 to 1.0 x In and 6 – 10 x Im
MTX1 Electronic OCR data
OCR adjustments
Adjustment range (LT)
Adjustment of LT time delay Ir
LT Thermal memory
Adjustment range (ST) Ir
Short time setting time delay
Fixed Instantaneous OCR setting
AS/NZS 60947.2
IEC-60947-2
MCCB data
Impulse withstand Voltage (kV)
Rated Operational Voltage (V) (max)
Rated Insulation Voltage (V)
Standard and approvals
230 / 240 V AC
400 / 415 V AC
500 V AC
Icu 550 V AC
kA 600 V AC
690 V AC
250VDC (3P in series)
500VDC (3P in series) L/ R<15ms
Ics as % lcu
Mechanical
Life span
Electrical @1.0 In
Operating Frequency (Hz)
Total Opening Time
Finger-proof Terminals
Ambient Temperature
Storage Temperature
Mounting Positions
3 Pole
Dimensions (W x D x H)
4 Pole
Weight (kg) (3/4 Pole)
Accessories
Auxiliary Contact
Trip Alarm Contact
Internal Auxiliary & Trip Alarm Contact
Shunt Release
Under Voltage Release
Extension handle
Direct mount handle
Handle mechanism padlock attachment
Captive toggle padlock attachment
Trapped key interlock 4 extension hdle
Mechanical Interlock
Motor operator for remote operation
External Transfer switch controller
Spreader bars for MCCB terminals
Terminal covers - same width as MCCB
Terminal covers - wide width
Terminal covers - flush
Interpole barriers – c/w with MCCB
Chassis rated 800A for 250AF
Chassis (high current) up to 630AF
0.8 to 1.0 x In and 6 – 10 x Im
0.8 to 1.0 x In and 6 – 10 x Im
N
3 or 4
800, 1000, 1250
Electronic
-
via DIP switches
0.4 to 1.0 in steps of 0.05 or OFF
10s at 6 Ir or 3s at 6 Ir
and
10s at 7.2 Ir or 3s at 7.2 Ir
Enable / Disable (θ = ON or 0 = OFF)
1.5, 2.5, 4, 5.5, 6.5, 8 x Ir
100ms / Instantaneous or OFF
10 x In
10 x In
8
690
750
AS/NZS / IEC / CE
65
85
36
50
25
36
18
25
16
18
10
15
15
25
5
10
100%
100%
25000
10000
8
8
690
690
750
750
AS/NZS / IEC / CE
AS/NZS / IEC / CE
65
85
65
85
36
50
36
50
25
36
25
36
15
20
15
20
12
18
12
18
8
15
8
10
15
25
15
25
5
10
5
10
100%
100%
100%
100%
15000
15000
4000
4000
50 / 60
<10 msec
Via use of MB terminal covers
-5°C to + 55°C
- 35°C to + 70°C
Vertical and 90° to the left and right
140 x 111.5 x 266
140 x 111.5 x 266
183.5 x 111.5 x 266
183.5 x 111.5 x 266
5.5 / 7.2
6 / 7/.8
105 x 96 x 179
140 x 95 x 179
2.5 / 3.3
1C/O or 2C/O
1C/O
1C/O + 1C/O
110 - 415V 50/60Hz, 110 - 220V DC
220 - 240 V 50 Hz
√
√
√
√
X
√
√
√
√
√
√
√
√
√
√
√
√
√
X
√
√
√
√
√
√
√
√
√
√
√
31
√
√
√
√
X
√
√
√
√
√
√
√
√
√
√
8
690
750
AS/NZS / IEC /CE
85
50
25
20
16
10
100%
8000
750
<20 msec
210 x 143 x 370
278 x 143 x 370
13 / 16
√
X
√
√
X
X
X
√
√
√
X
X
√
X
X
M
MCCB to MCB Selectivity and Cascading



Upstream THERMAL MAGNETIC MCCB, either 36kA or 50kA
Downstream Thermal magnetic MCBs, MOD6 or DIN-T series
415V AC system voltage
MB2 NTM
MB3 NTM
250AF MCCB Thermal Magnetic, 50kA
Downstream
MOD6 6kA
MCB's &
RCBO's
DIN-T 6kA
MCB's &
RCBO's
DIN-T 10kA
MCB's &
RCBO's
DIN-TH
10kA MCB's
DIN-T 15kA
MCB's
Current
Rating
MB263N_TM
63A
≤32
25 / 25
25 / 25
25 / 25
25 / 25
MOD6 6kA
MCB's &
RCBO's
DIN-T 6kA
MCB's &
RCBO's
DIN-T 10kA
MCB's &
RCBO's
DIN-TH
10kA MCB's
DIN-T 15kA
MCB's
Notes:




MB2100N_TM MB2125N_TM MB2160N_TM MB2250N_TM
100A
125A
160A
250A
MB3320N_TM
320A
MB3400N_TM
400A
25 / 25
-- / --
-- / --
40
-- / 25
25 / 25
25 / 25
25 / 25
25 / 25
-- / --
-- / --
50-63
-- / 25
-- / 25
25 / 25
25 / 25
25 / 25
-- / --
-- / --
≤32
25 / 30
25 / 30
25 / 30
25 / 30
25 / 30
-- / --
-- / --
40
-- / 30
25 / 30
25 / 30
25 / 30
25 / 30
-- / --
-- / --
50-63
-- / 30
-- / 30
25 / 30
25 / 30
25 / 30
-- / --
-- / --
≤32
30 / 36
30 / 36
30 / 36
30 / 36
30 / 36
30 / 30
30 / 30
40
-- / 30
30 / 30
30 / 30
30 / 30
30 / 30
30 / 30
30 / 30
50-63
-- / 30
-- / 30
30 / 30
30 / 30
30 / 30
30 / 30
30 / 30
80
-- / --
-- / --
-- / 25
15 / 25
15 / 25
10 / 10
10 / 10
100
-- / --
-- / --
-- / --
15 / 25
15 / 25
10 / 10
10 / 10
125
-- / --
-- / --
-- / --
-- / --
15 / 25
10 / 10
10 / 10
≤32
30 / 36
30 / 36
30 / 36
30 / 36
30 / 36
30 / 30
30 / 30
40
-- / 30
30 / 30
30 / 30
30 / 30
30 / 30
30 / 30
30 / 30
50-63
-- / 30
-- / 30
30 / 30
30 / 30
30 / 30
30 / 30
30 / 30
MB2 DTM
Upstream
Downstream
400AF MCCB Thermal Magnetic, 50kA
MB3 DTM
250AF MCCB Thermal Magnetic, 36kA
Current
Rating
MB263D_TM
63A
≤32
25 / 25
25 / 25
25 / 25
25 / 25
40
-- / 25
25 / 25
25 / 25
25 / 25
400AF MCCB Thermal Magnetic,
MB2100D_TM MB2125D_TM MB2160D_TM MB2250D_TM
100A
125A
160A
250A
36kA
MB3320D_TM
320A
MB3400D_TM
400A
25 / 25
-- / --
-- / --
25 / 25
-- / --
-- / --
50-63
-- / 25
-- / 25
25 / 25
25 / 25
25 / 25
-- / --
-- / --
≤32
25 / 30
25 / 30
25 / 30
25 / 30
25 / 30
-- / --
-- / --- / --
40
-- / 30
25 / 30
25 / 30
25 / 30
25 / 30
-- / --
50-63
-- / 30
-- / 30
25 / 30
25 / 30
25 / 30
-- / --
-- / --
≤32
30 / 36
30 / 36
30 / 36
30 / 36
30 / 36
30 / 30
30 / 30
40
-- / 30
30 / 30
30 / 30
30 / 30
30 / 30
30 / 30
30 / 30
50-63
-- / 30
-- / 30
30 / 30
30 / 30
30 / 30
30 / 30
30 / 30
80
-- / --
-- / --
-- / 25
15 / 25
15 / 25
10 / 10
10 / 10
100
-- / --
-- / --
-- / --
15 / 25
15 / 25
10 / 10
10 / 10
125
-- / --
-- / --
-- / --
-- / --
15 / 25
10 / 10
10 / 10
≤32
30 / 36
30 / 36
30 / 36
30 / 36
30 / 36
30 / 30
30 / 30
40
-- / 30
30 / 30
30 / 30
30 / 30
30 / 30
30 / 30
30 / 30
50-63
-- / 30
-- / 30
30 / 30
30 / 30
30 / 30
30 / 30
30 / 30
The first number is the Selectivity kA rating / the second is the Cascade kA rating. Example: Selectivity 25 / 30 Cascade
-- or --/-- Indicates no Selectivity or Cascade.
Selectivity: The power contacts of the Upstream MCCB do not latch open when a fault is cleared by the downstream MCB.
Cascading: The upstream MCCB assists the downstream MCB in clearing a higher level fault than the MCBs normal breaking capacity.
32
M
MCCB to MCB Selectivity and Cascading



Upstream ELECTRONIC MCCB either 36kA or 50kA
Downstream Thermal magnetic MCBs, MOD6 or DIN-T series
415V AC system voltage
MB2 NSE
Upstream
Downstream
MOD6 6kA
MCB's &
RCBO's
DIN-T 6kA
MCB's &
RCBO's
DIN-T 10kA
MCB's &
RCBO's
DIN-TH
10kA MCB's
DIN-T 15kA
MCB's
MOD6 6kA
MCB's &
RCBO's
DIN-T 6kA
MCB's &
RCBO's
DIN-T 10kA
MCB's &
RCBO's
DIN-TH
10kA MCB's
DIN-T 15kA
MCB's
Notes:




400AF MCCB Electronic OCR, 50kA
Current
Rating
MB240N_SE
40A
MB2100N_SE
100A
MB2250N_SE
160A
MB2250N_SE
250A
MB3400N_SE
400A
≤32
20 / 25
20 / 25
20 / 25
20 / 25
-- / --
40
-- / 25
20 / 25
20 / 25
20 / 25
-- / --
50-63
-- / 25
-- / 25
20 / 25
20 / 25
-- / --
≤32
20 / 30
20 / 30
20 / 30
20 / 30
-- / --
40
-- / 30
20 / 30
20 / 30
20 / 30
-- / --
50-63
-- / 30
-- / 30
20 / 30
20 / 30
-- / --
≤32
20 / 36
20 / 36
20 / 36
20 / 36
20 / 30
40
-- / 30
20 / 30
20 / 30
20 / 30
20 / 30
50-63
-- / 30
-- / 30
20 / 30
20 / 30
20 / 30
80
-- / --
-- / --
10 / 15
10 / 15
10 / 10
100
-- / --
-- / --
10 / 15
10 / 15
10 / 10
125
-- / --
-- / --
-- / --
10 / 15
10 / 10
≤32
20 / 36
20 / 36
20 / 36
20 / 36
20 / 30
40
-- / 30
20 / 30
20 / 30
20 / 30
20 / 30
50-63
-- / 30
-- / 30
20 / 30
20 / 30
20 / 30
MB2 DSE
Upstream
Downstream
MB3 NSE
250AF MCCB Electronic OCR, 50kA
MB3 DSE
250AF MCCB Electronic OCR, 36kA
400AF MCCB Electronic OCR,
Current
Rating
MB240D_SE
40A
MB2100D_SE
100A
MB2250D_SE
160A
MB2250D_SE
250A
MB3400D_SE
400A
≤32
20 / 25
20 / 25
20 / 25
20 / 25
-- / --
40
-- / 25
20 / 25
20 / 25
20 / 25
-- / --
50-63
-- / 25
-- / 25
20 / 25
20 / 25
-- / --
≤32
20 / 30
20 / 30
20 / 30
20 / 30
-- / --
40
-- / 30
20 / 30
20 / 30
20 / 30
-- / --
50-63
-- / 30
-- / 30
20 / 30
20 / 30
-- / --
≤32
20 / 36
20 / 36
20 / 36
20 / 36
20 / 30
40
-- / 30
20 / 30
20 / 30
20 / 30
20 / 30
50-63
-- / 30
-- / 30
20 / 30
20 / 30
20 / 30
80
-- / --
-- / --
10 / 15
10 / 15
10 / 10
100
-- / --
-- / --
10 / 15
10 / 15
10 / 10
125
-- / --
-- / --
-- / --
10 / 15
10 / 10
≤32
20 / 36
20 / 36
20 / 36
20 / 36
20 / 30
40
-- / 30
20 / 30
20 / 30
20 / 30
20 / 30
50-63
-- / 30
-- / 30
20 / 30
20 / 30
20 / 30
The first number is the Selectivity kA rating / the second is the Cascade kA rating. Example: Selectivity 20 / 30 Cascade
-- or --/-- Indicates no Selectivity or Cascade.
Selectivity: The power contacts of the Upstream MCCB do not latch open when a fault is cleared by the downstream MCB.
Cascading: An upstream MCCB assists a downstream MCB to clear a higher fault than the MCB’s breaking capacity.
33
36kA
M
MCCB to MCCB Selectivity and Cascade



36kA upstream ELECTRONIC MCCB
Downstream Thermal magnetic or Electronic MCCBs
415V AC system voltage
Upstream
MCCB
Downstream
MCCB
MB240D_SE
MB240N_SE
MB263D_TM
MB263N_TM
MB2100D_SE
MB2100N_SE
MB2100D_TM
MB2100N_TM
MB2100D_SE
MB2100N_SE
MB2100D_TM
MB2100N_TM
MB2100D_SE
MB2100N_SE
MB2125D_TM
MB2125N_TM
MB2125D_SE
MB2125N_SE
MB2160D_TM
MB2160N_TM
MB2160D_SE
MB2160N_SE
MB2250D_TM
MB2250N_TM
MB2250D_SE
MB2250N_SE
MB2250D_TM
MB2250N_TM
MB2250D_SE
MB2250N_SE
MB3320D_TM
MB3320N_TM
MB3400D_SE
MB3400N_SE
MB3630D_TM
MB3630N_TM
MB3630D_SE
MB3630N_SE
Notes:




MB3 DSE
MB4 DSE
MCCB Electronic MTX1.0 OCR, 36kA
MCCB Electronic MTX1.0 OCR, 36kA
Current
Rating
MB3400D_SE
400 A
MB3630D_SE
630 A
MB4800D_SE
800 A
MB41000D_SE
1000 A
MB41250D_SE
1250 A
40 A
20 / 36
20 / 36
36 / 36
36 / 36
36 / 36
63 A
20 / 36
20 / 36
36 / 36
36 / 36
36 / 36
80 A
20 / 36
20 / 36
36 / 36
36 / 36
36 / 36
100 A
20 / 36
20 / 36
36 / 36
36 / 36
36 / 36
125 A
20 / 36
20 / 36
36 / 36
36 / 36
36 / 36
160 A
20 / 36
20 / 36
36 / 36
36 / 36
36 / 36
200 A
20 / 36
20 / 36
36 / 36
36 / 36
36 / 36
250 A
20 / 36
20 / 36
36 / 36
36 / 36
36 / 36
400 A
--
--
36 / 36
36 / 36
36 / 36
630 A
--
--
36 / 36
36 / 36
36 / 36
The first number is the Selectivity kA rating / the second is the Cascade kA rating. Example: Selectivity 20 / 36 Cascade
“--“ Indicates no Selectivity or Cascade.
Selectivity: The Upstream MCCB power contacts do not latch open a fault is cleared by the downstream MCCB.
Cascading: An upstream MCCB assists a downstream MCCB to clear a higher fault than the MCCB’s breaking capacity.
34
M
MCCB to MCCB Selectivity and Cascade



50kA upstream ELECTRONIC MCCB
Downstream Thermal magnetic or Electronic MCCBs
415V AC system voltage
Upstream
MCCB
Downstream
MCCB
MB240D_SE
MB240N_SE
MB263D_TM
MB263N_TM
MB2100D_SE
MB2100N_SE
MB2100D_TM
MB2100N_TM
MB2100D_SE
MB2100N_SE
MB2100D_TM
MB2100N_TM
MB2100D_SE
MB2100N_SE
MB2125D_TM
MB2125N_TM
MB2125D_SE
MB2125N_SE
MB2160D_TM
MB2160N_TM
MB2160D_SE
MB2160N_SE
MB2250D_TM
MB2250N_TM
MB2250D_SE
MB2250N_SE
MB2250D_TM
MB2250N_TM
MB2250D_SE
MB2250N_SE
MB3320D_TM
MB3320N_TM
MB3400D_SE
MB3400N_SE
MB3630D_TM
MB3630N_TM
MB3630D_SE
MB3630N_SE
Notes:




MB3 NSE
MB4 NSE
MCCB Electronic MTX1.0 OCR, 50kA
MCCB Electronic MTX1.0 OCR, 50kA
Current
Rating
MB3400N_SE
400 A
MB3630N_SE
630 A
MB4800N_SE
800 A
MB41000N_SE
1000 A
MB41250N_SE
1250 A
40 A
20 / 50
20 / 50
36 / 50
36 / 50
36 / 50
63 A
20 / 50
20 / 50
36 / 50
36 / 50
36 / 50
80 A
20 / 50
20 / 50
36 / 50
36 / 50
36 / 50
100 A
20 / 50
20 / 50
36 / 50
36 / 50
36 / 50
125 A
20 / 50
20 / 50
36 / 50
36 / 50
36 / 50
160 A
20 / 50
20 / 50
36 / 50
36 / 50
36 / 50
200 A
20 / 50
20 / 50
36 / 50
36 / 50
36 / 50
250 A
20 / 50
20 / 50
36 / 50
36 / 50
36 / 50
400 A
--
--
36 / 50
36 / 50
36 / 50
630 A
--
--
36 / 50
36 / 50
36 / 50
The first number is the Selectivity kA rating / the second is the Cascade kA rating. Example: Selectivity 20 / 50 Cascade
“--“ Indicates no Selectivity or Cascade.
Selectivity: The Upstream MCCB power contacts do not latch open a fault is cleared by the downstream MCCB.
Cascading: An upstream MCCB assists a downstream MCCB to clear a higher fault than the MCCB’s breaking capacity.
35
M
MODcurve software
MODcurve is a selectivity analysis software package developed by NHP specifically for the Australian and New Zealand markets.
Designed around the MOD series of ACBs and MCBs as well as NHP’s extensive range of MCBs and fuses, MODcurve presents a
user-friendly interface for conducting selectivity studies. (MODcurve V6, July 2013)
Features:
 Simple and easy to use
 Can be used for coordination with upstream HV fuses
 Includes both MOD6 and Din T ranges of MCBs
 User defined devices can be added
 Ability to print report with single line diagram and circuit breaker settings included
36
M
MODbreak Motor starting table
Motor circuit application table for DOL starting
General purpose circuit breaker selection for 3 Phase, 4 Pole, 415 V AC motors requiring short circuit protection.
Breaker type and current rating (A)
Motor kW
Approximate
FLC (Amps)
0.37
0.55
0.75
1.1
1.5
2.2
3.0
4
4.5
5.5
7.5
10
11
15
18.5
22
25
30
37
45
55
75
90
110
132
160
185
200
220
250
280
300
375
450
1.1
1.5
1.8
2.6
3.4
4.8
6.5
8.2
9
11
14
19
21
28
34
40
46
55
66
80
100
135
160
200
230
270
320
361
380
430
480
510
650
750
Notes:
1)
2)
3)
4)
5)
6)
7)
8)
9)
MOD6 or
DINT
MCB
4
4
6
10
10
16
20
25
32
32
40
50
50
63
100 3)
125 3)
125 3)
MB2
Thermal Magnetic
MCCB
MB2
Electronic
MCCB
63
63
100
100
100
125
125
125
200
250
250
250
40
40
40
100
100
100
100
100
250
250
250
250
250
250
250
250
MB3
Thermal Magnetic
MCCB
MB3
Electronic
MCCB
320
320
320
400
400
400
400
630
630
630
630
400
400
400
400
400
400
400
400
630
630
630
630
MB4
Electronic
MCCB
800
800
800
800
800
1000
1000
The DOL table is based on holding 125 % FLC continuously and 600 % FLC for 10 seconds.
The primary task of the above circuit breakers is to provide short circuit and cable protection. The motor starter would normally be supplied with an
overload relay that will detect lower level current overloads or phase loss.
80, 100 and 125 amp refers to Din-T10H type.
MOD6 MCBs are C curve MCBs. Din-T MCBs are C or D curve types, and either can be used for motor starting.
Thermal magnetic MCCB current adjustment range 0.8 to 1.0 x In. Set magnetic trip to maximum or equivalent to 15 x motor FLC.
Electronic MCCB base current adjustment ranges 0.4 to 1.0 x In. Set Short Time setting to maximum or equivalent to 15 x Motor FLC.
Lower ampere rated MCCBs are possible for many applications. The above MCCB sizes generally provide additional ampere capacity.
MODbreak MCCBs have a maximum instantaneous trip setting of 10 x In. Consideration should be given to the use of high efficiency motors with a short
time current inrush of between 15 to 20 x In.
Refer NHP for tables for reduced voltage, and Type 2 coordination motor starting.
37
M
MODbreak Motor starting table
Motor circuit application table for DOL FIRE PUMP starting duty
Circuit breaker selection for 3 Phase, 4 Pole, 415 V AC motors requiring short circuit protection
Breaker type and current rating (A)
Motor kW
Approximate
FLC (Amps)
0.37
0.55
0.75
1.1
1.5
2.2
3.0
4
4.5
5.5
7.5
10
11
15
18.5
22
25
30
37
45
55
75
90
110
132
160
185
200
220
250
280
300
375
450
1.1
1.5
1.8
2.6
3.4
4.8
6.5
8.2
9
11
14
19
21
28
34
40
46
55
66
80
100
135
160
200
230
270
320
361
380
430
480
510
650
750
Notes:
1)
2)
3)
4)
5)
6)
7)
8)
MOD6 or
DINT
MCB
4
6
6
10
10
20
25
32
32
32
50
63
63
100
125 3)
125 3)
125 3)
MB2
Thermal Magnetic
MCCB
MB2
Electronic
MCCB
40
40
40
100
100
100
100
100
250
250
250
250
250
250
63
100
100
125
125
160
160
250
250
MB3
Thermal Magnetic
MCCB
MB3
Electronic
MCCB
320
320
400
400
400
400
400
630
630
630
400
400
400
400
400
630
630
630
MB4
Electronic
MCCB
800
800
1000
1000
The DOL table is based on holding 125 % FLC continuously and 600 % FLC for 20 seconds.
The primary task of the above circuit breakers is to provide short circuit and cable protection. The motor starter would normally be supplied with an
overload relay that will detect lower level current overloads or phase loss.
80, 100 and 125 amp refers to Din-T10H type.
MOD6 MCBs are C curve MCBs. Din-T MCBs are C or D curve types, and either can be used for motor starting.
Thermal magnetic MCCB current adjustment range 0.8 to 1.0 x In. Set magnetic trip to maximum or equivalent to 15 x motor FLC.
Electronic MCCB base current adjustment ranges 0.4 to 1.0 x In. Set Short Time setting to maximum or equivalent to 15 x Motor FLC.
MODbreak MCCBs have a maximum instantaneous trip setting of 10 x In. Consideration should be given to the use of high efficiency motors with a short
time current inrush of between 15 to 20 x In.
Refer NHP for tables for reduced voltage, and Type 2 coordination motor starting.
38
M
MODbreak technical data
Watts Loss for Thermal Magnetic and Electronic MCCBs
MCCB
MB2 250 D/N_TM/SE
MB3 400 D/N_TM/SE
MB3 630 D/N_TM/SE
MB4 800 D/N_TM/SE
MB4 1000 D/N_TM/SE
MB4 1250 D/N_TM/SE
Watts loss per pole (W)
18
22
47
32
50
78
250A
400A
630A
800A
1000A
1250A
Let-through and Cut-off values at 415V AC - Thermal Magnetic and Electronic MCCBs
Cut-off (kA)
MCCB
MB2 250 D/N_TM/SE
MB3 400 D/N_TM/SE
MB3 630 D/N_TM/SE
MB4 800 D/N_TM/SE
MB4 1000 D/N_TM/SE
MB4 1250 D/N_TM/SE
250A
400A
630A
800A
1000A
1250A
36 kA MCCB
19
25
30
-
50 kA MCCB
22
26
32
65
65
65
Let-through (x106 A2seconds)
36 kA MCCB
50 kA MCCB
1.4
1.6
2
2.4
3
3.6
26
30
30
Temperature Ratings for Thermal Magnetic MCCBs
MCCB type
MB2 125 D/N_TM
MB2 160 D/N_TM
MB2 200 D/N_TM
MB2 250 D/N_TM
MB3 400 D/N_TM
MB3 630 D/N_TM
125A
160A
200A
250A
400A
630A
40
125
160
200
250
400
630
45
123
156
192
241
391
621
Ambient Temperature (oC)
50
55
60
121
119
118
152
148
144
184
176
168
232
224
215
382
373
364
612
603
594
65
116
140
160
206
355
585
70
114
136
152
198
346
576
Ambient Temperature (oC)
50
55
60
40
40
40
63
63
63
100
100
100
125
125
125
160
160
160
250
243
236
400
393
386
630
605
585
800
790
780
1000
1000
1000
1250
1235
1220
65
40
63
100
125
160
229
379
565
770
990
1205
70
40
63
100
125
160
222
372
545
760
980
1190
Temperature Ratings for Electronic MCCBs
MCCB type
MB2 250 D/N_SE
MB2 250 D/N_SE
MB2 250 D/N_SE
MB2 250 D/N_SE
MB2 250 D/N_SE
MB2 250 D/N_SE
MB3 400 D/N_SE
MB3 630 D/N_SE
MB4 1250 N_SE
MB4 1250 N_SE
MB4 1250 N_SE
40A
63A
100A
125A
160A
250A
400A
630A
800A
1000A
1250A
40
40
63
100
125
160
250
400
630
800
1000
1250
45
40
63
100
125
160
250
400
630
800
1000
1250
39
M
MODbreak Characteristic curves
Thermal Magnetic MCCBs
MB2:
63A, 100A, 125A, 160A, 200A, 250A
MB3:
400A / 630A
40
M
MODbreak Characteristic curves
Electronic MCCBs: 40A to 1250A
MTX1: MB2 / MB3 / MB4
MTX1: MB2 / MB3 / MB4
MTX1 short Time setting: MB2 / MB3 / MB4
41
M
MODbreak Electronic MCCB DIP Switch Setting
Refer below for DIP switch positions and settings.
Long Time Delay (LTD) Overload Protection (It = x IN)
Thermal Memory
The thermal memory feature is enabled or disabled by switching the DIP switch above the symbol θ on the OCR facia.
Up = BYPASS (OFF) / Down = ON.
The thermal memory feature is similar to the effects of hot and cold starting on an overload relay or thermal magnetic MCCB.
Thermal memory can protect the system from thermal stresses generated by cumulative heating caused by cyclic overload
conditions, thereby allowing the MCCB & system to return to a safe operating temperature. This function also allows for an
optimisation of cables or busbar protection in the case of low amplitude repetitive faults. The “Advance tripping” of the MCCB also
increases overall life and eliminates installation downtime.
42
M
MODbreak Electronic MCCB DIP Switch setting
Refer below for DIP switch positions and the resulting setting
Inverse Overload Curve Type Selection



Allows a degree of curve adjustment to allow for grading with upstream or downstream devices.
Adjust the tripping characteristics of the MCCB for motor starting to take into account motor start up times.
Refer MODbreak characteristic curves on previous pages for each setting characteristic.
Short Time Delay (STD) Short Circuit Setting (IS = x IN)
Time Delay for Short Circuit Protection
Allows for the selection of a short delay just prior to the MCCB tripping if a short circuit occurs.
43
M
About MODbreak Electronic MCCB OCRs
Electronic OCR Layout:
•
•
•
•
•
•
•
Overload protection LT with selectable inverse time delay
Adjustable Short Time ST characteristic
Short circuit (ST) characteristic with selectable time delay
LT and ST characteristic can be switched OFF
Fixed instantaneous trip at 10 x In
Thermal memory enable / disable
True RMS sensing
Overload Pick-Up Indication LED
Improves uptime and productivity, via a visual indicator LED which can be used to monitor an unbalanced load so that proactive
measures can be taken to avoid overload conditions.
Overload pick-up LED Indicator
% of IR
30%
85%
115%
Overload pick-up LED indication
Green LED
Fast blinking of LED
LED operates sequential ON/OFF operations
LED Indicator
•
When the current flowing through the MCCB is less than 30% of the preset OCR current setting, the LED is OFF.
•
When the current reaches ≥ 30% of IN, the green LED is ON.
•
At 85% of Ir the OCR enters alarm mode and starts to blink OFF and ON.
•
At 115% of Ir the OCR enters into pick up mode and is indicated by sequential ON OFF operations of the LED.
•
Above the 115% level the OCR will trip the MCCB.
44
M
About MODbreak Electronic MCCB OCRs
Example of setting the LTD – Long Time Delay setting, which is used to reset the amp rating of the MCCB.
EXAMPLE
250A Trip Unit
The DIP switches allow LTD setting changes - refer examples below. The photo below shows the FACTORY DEFAULT settings.
The raised white indicator indicates the up or down position of the DIP switch (switch in photo is shown down)
EXAMPLE
250A Trip Unit
To calculate the current setting, simply add up the DIP switch multiples.
For example: when the DIP switches are switched DOWN the amp ratings are selected.
•
•
•
•
0.4 + 0.05 + 0.1 + 0.2 + 0.25 = 1, in other words, set at 100% of the trip unit rating = 250A.
0.4 + 0.05 + 0.2 = 0.65 x 250A = 162.5A
0.4 = 0.4 x 250A = 100A.
If 0.4 and the other LT settings are switched to the upper position, the Long Time characteristic is switched
OFF. The MCCB is now short time and instantaneous only.
45
M
MODbreak MCCB Dimensions
MB2:
16A to 250A
M4 threaded mounting hole
28mm
26.5mm
MB2:
Thermal Magnetic MCCBs
Electronic MCCBs
16A to 250A with optional spreader busbar tags
46
Rating
Type
63A – 100A
125A – 250A
40A – 250A
Thermal magnetic
Thermal magnetic
Electronic
Dimension mm (A)
25.5
28
28
M
MODbreak MCCB Dimensions
MB3:
320A to 630A
M5 threaded mounting hole
Terminal width 30.5mm
MB3:
320A to 630A with optional spreader busbar tags
MCCB without spreader bars (top drawing)
Dim A
400A Thermal Magnetic: 39mm
400A Electronic: 39mm
630A Thermal Magnetic: 43.3mm
630A Electronic: 43mm
Dim B
400A Thermal Magnetic: 36.6mm
400A Electronic: 38mm
630A Thermal Magnetic: 39mm
630A Electronic: 39.3mm
47
MCCB with spreader bars (bottom drawing)
MB3
MB4
A
39
41
B
37
38
C
45
55
D
324
344
E
370
390
F
13
11
M
MODbreak MCCB Dimensions
MB4:
800A, 1000A and 1250A
Connection tag height from rear of MCCB is 46.3 mm
Door Mounting
cut-out dimensions
MB4: 800A, 1000A and 1250A with optional extension busbar tags.
10.5
24
10.5
Bar size: 116 x 45 x 15 mm
Material: Tinned copper
14
11mm θ
116
8
113mm θ slotted
15
13mm θ
22.5
22.5
45
48
M
MODbreak MCCB Dimensions
Direct mount handle mounting
L1
L2 / L3
L4 / L5
MCCB
Type
MB2
MB3
MB4
= Mounting depth MCCB + handle
= Door or escutcheon cut-out
= Breaker position relative to cut-out
49
L1
122
146
156
L2
96
121
121
L3
63
87
87
L4
53
78
78
L5
66
82
82
M
MODbreak MCCB Dimensions
Extension handle mounting
MCCB
Type
MB2
MB3
MB4
MB4 - example
50
L1
202
233
302
L
L1 = 152
L1 = 183
L1 = 252
L2
27
39
69
L3
84
122
170
M
MODbreak MCCB Dimensions
MB2
MCCB with motor operator fitted
MB3
MCCB with motor operator fitted
51
M
MODbreak MCCB Dimensions
Mechanical interlock and mounting plate
MB2
MB3
52
M
MODbreak MCCB Dimensions
MB2 Terminal covers – 250AF MCCBs
Typical internal construction for
MODbreak terminal covers
53
M
MODbreak MCCB Dimensions
MB3 Terminal covers - 630AF MCCBs
MB4 Terminal covers - 1250AF MCCBs
54
M
MODbreak MCCB Dimensions
Manual Transfer Switch 250AF – 3 Pole
Manual Transfer Switch 250AF – 4 Pole
55
M
MODbreak MCCB Dimensions
Manual Transfer Switch 630AF – 3 Pole
Manual Transfer Switch 630AF – 4 Pole
56
M
MODbreak MCCB Dimensions
Basic Transfer Switch 250AF – Motorised 3 Pole
MB2MOTOR240VAC Motor operators mounted on MCCBs (240VAC) x 2
Basic Transfer Switch 250AF – Motorised 4 Pole
MB2MOTOR240VAC Motor operators mounted on MCCBs (240VAC) x 2
Note1:
57
Escutcheon height is to the underside of the escutcheon.
M
MODbreak MCCB Dimensions
Basic Transfer Switch 630AF – Motorised 3 Pole
MB3MOTOR240VAC Motor operators mounted on MCCBs (240VAC) x 2
Basic Transfer Switch 630AF – Motorised 4 Pole
MB3MOTOR240VAC Motor operators mounted on MCCBs (240VAC) x 2
Note1:
58
Escutcheon height is to the underside of the escutcheon.
M
MODBreak Over-Current Relay (OCR) Tester
General information

MBOCRTESTER facia shown above

NHP Catalogue Number: MBOCRTESTER (code: ST374980000 / DNT20)

NHP MODBreak MCCBs use OCR types “MTX1” which are indicated below

The MBOCRTESTER is suitable for MODbreak MCCBs (not ACBs)
The MBOCRTESTER tester kit consists of:

1 tester. (The tester will need a 240V GPO plug adaptor or a local GPO plug to replace the plug the tester comes with)

2 x D shell 9 pin serial connector, to go from the tester to the MCCB (1 spare lead)

1 x D shell 9 pin serial connector (For an older OCR series not sold by NHP)
MODbreak electronic MCCB OCR
Tester
MODBreak connector lead
Spare connector
For other MCCB types (ignore this)
Connector lead plugs into MTX1
OCR test socket connection, and to
OCR tester’s rear 9 pin serial port.
59
M
MODBreak Over-Current Relay (OCR) Tester
Using the MTX1.0 OCR Release Setting Checker Test Kit

S1 & S2 are OCR checker dial settings that are dependent on the MCCB OCR DIP switch settings

The rocker switch has 3 positions: TEST / OFF / AUX. Power.

When the switch is in AUX mode, the GREEN LED will glow indicating AUX supply is provided to the tester.

The RED LED & display will not be on. When the switch is in TEST mode, the RED LED and display will be on,
indicating that the tester is ready to test. The GREEN LED will not be on, ensuring that only one mode can be activated
at any time.

Ensure that the MCCB toggle is in ON position when the settings are checked.
For setting S1
Over Current Relay (OCR) Setting
MTX1 Over
Current Relay
Long Time
Characteristic
50
70
100
OFF
Setting on OCR Tester
Short Time
Characteristic
8
5.5
4
OFF
S1
S2
A
A
A
A
A
A
A
A
OCR Output
At 20mS: OCR trips within 0.06s or 0.00s on display
At 100mS: OCR trips within 0.13s on display
At 200mS: OCR trips within 0.23s on display
For setting S2
Over Current Relay (OCR) Setting
MTX1 Over
Current Relay
Setting on OCR Tester
Long Time
Characteristic
60
80
40
60
40
Short Time
Characteristic
OFF
OFF
OFF
OFF
2.5
60
100
2.5
1.5
S1
S2
A
A
A
A
A
B
A
E
H
A
A
A
C
A
60
OCR Output
OCR trips within 20 to 50 seconds
OCR trips within 86 to 128 seconds
OCR trips within 7 to 12 seconds
OCR trips within 7 to 12 seconds
At 20mS: OCR trips within 0.06s or 0.00s on display
At 100mS: OCR trips within 0.13s on display
At 200mS: OCR trips within 0.23s on display
M
MODBreak Installation Instructions: MB2, MB3, MB4 MCCBs
MB2, MB3, MB4 – General installation precautions
MB2, MB3, MB4 – MCCB toggle operation and tripping the MCCB
61
M
MODbreak Installation Instructions
MB2 Interpole barriers
Exhaust gas vents from
the line side (top) of the
MCCB, which is the
opposite end to where
the current adjustment
dials are located.
MB3 Interpole barriers
Exhaust gas vents from
the line side (top) of the
MCCB, which is the
opposite end to where
the current adjustment
dials are located.
62
M
MODbreak Installation Instructions
MB4 Interpole barriers
Exhaust gas vents from
the line side (top) of the
MCCB, which is the
opposite end to where
the current adjustment
dials are located.
MB2 Mounting orientation and termination mounting, torque, capacity and weight
Mount in any one of these three orientations only
63
M
MODbreak Installation Instructions
MB3 Mounting orientation and termination mounting, torque, capacity and weight
MB4 Mounting orientation and termination mounting, torque, capacity and weight
64
M
MODbreak Installation Instructions
MB2, MB3 – Adjustment of THERMAL MAGNETIC trip unit
MB2, MB3, MB4 – Adjustment of ELECTRONIC Over Current Relay
Refer previous pages for more detailed setting diagrams
65
M
MODbreak Installation Instructions
MB2, MB3, MB4 – Accessory cover removal, internal accessory mounting and wire routing
66
M
MODbreak Installation Instructions
MB2, MB3, MB4 – Internal accessory cover fitting
MB2, MB3, MB4 – Internal accessory removal
67
M
68

Download Report