MCCBs

MCCBs (Moulded Case Circuit Breakers) are an electrically operated switch designed to protect an electrical circuit from damage caused by overcurrent, typically resulting from an overload or short circuit.
How do they work?
The basic function of an MCCB is to interrupt current flow after a fault, once the fault is corrected the circuit breaker can be reset (either manually or automatically) to resume normal operation.
MCB or MCCB
Although MCBs and MCCBs both are circuit breakers, there are key differences between the two that make them suitable for specific jobs. The main difference between the two is the capacity, MCBs are rated under 100 amps with an interrupting rating of under 18,000 amps. Consequently, the trip characteristics may not be adjusted since they cater to low circuits. On the other hand, an MCCB comes with an adjustable trip characteristic for the higher loads. An MCCB would typically provide amps as high as 2500 or as low as 10, depending on the application. The interrupting rating of MCCBs range from around 10,000 amps to 200,000 amps.

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Description Price Range Series Number of Poles Current Rating Breaking Capacity Rated AC Voltage Rated DC Voltage Mounting Style Length Width Depth Application Break Time Circuit Breaker Type
RS Stock No. 628-8082
Mfr. Part No.PN1-125
BrandEaton
MYR1,032.53
1 Box of 1
Box(es)
- PN1 3P 125 A 80 kA 690 V - Fixed 90mm 145mm 84.5mm - - -
RS Stock No. 849-4282
Mfr. Part No.LV430670
MYR2,520.13
Each
units
NSX Range LV4 3P 160 A 100 kA 690 V - Fixed 161mm 105mm 86mm - - -
RS Stock No. 537-5551
Mfr. Part No.NZMN2-A250
BrandEaton
MYR2,555.57
Each
units
xEnergy NZM2 3P 250 A 50 kA 690 V 750V Fixed 105mm 184mm 149mm - - -
RS Stock No. 537-5545
Mfr. Part No.NZMN2-A200
BrandEaton
MYR2,950.30
Each
units
xEnergy NZM2 3P 200 A 50 kA 690 V 750V Fixed 105mm 184mm 149mm - - -
RS Stock No. 454-8039
Mfr. Part No.NZMB1-A40
BrandEaton
MYR898.10
Each
units
xEnergy NZM1 3P 40 A 25 kA 440 V - Fixed 90mm 145mm 84.5mm - - -
RS Stock No. 849-3986
Mfr. Part No.LV429640
MYR1,704.60
Each
units
NSX Range LV4 4P 100 A 85 kA 690 V - Fixed 161mm 140mm 86mm - - -
RS Stock No. 538-3833
Mfr. Part No.E203/100RD
BrandABB
MYR245.26
Each
units
Pro M S2CU 3P 100 A - 230 V, 400 V - DIN Rail 52.5mm 68mm 90mm - - -
RS Stock No. 454-8095
Mfr. Part No.NZMN1-A40
BrandEaton
MYR1,225.03
Each
units
xEnergy NZM1 3P 40 A 50 kA 690 V 500V Fixed 90mm 145mm 84.5mm - - -
RS Stock No. 628-8004
Mfr. Part No.NZMN2-M125
BrandEaton
MYR2,431.21
1 Box of 1
Box(es)
xEnergy NZM2 3P 125 A 50 kA 690 V 750V Fixed 105mm 184mm 149mm - - -
RS Stock No. 874-4402
Mfr. Part No.3VA2225-5HL32-0AA0
BrandSiemens
MYR3,579.59
Each
units
Sentron 3VA 3P 250 A 55 kA 690 V - Fixed 105mm 181mm 107mm Commercial Buildings Instantaneous MCCB
RS Stock No. 849-4576
Mfr. Part No.LV431871
MYR3,186.18
Each
units
NSX Range LV4 3P 250 A 90 kA 690 V - Fixed 161mm 105mm 86mm - - -
RS Stock No. 517-4819
Mfr. Part No.MGP0631L1
MYR600.76
Each
units
Powerpact4 MGP 1P 63 A 25 kA 230 V - Surface Mount - - - - - -
RS Stock No. 537-5618
Mfr. Part No.NZMH2-VE250
BrandEaton
MYR4,317.84
Each
units
xEnergy NZM2 3P 250 A 150 kA 690 V 750V Fixed 105mm 184mm 149mm - - -
RS Stock No. 454-8124
Mfr. Part No.NZMN1-A80
BrandEaton
MYR1,251.10
Each
units
xEnergy NZM1 3P 80 A 50 kA 690 V 500V Fixed 90mm 145mm 84.5mm - - -
RS Stock No. 849-4598
Mfr. Part No.LV432694
MYR5,910.99
Each
units
NSX Range LV4 4P 400 A 50 kA 690 V - Fixed 255mm 185mm 110mm - - -
RS Stock No. 849-4497
Mfr. Part No.LV431770
MYR3,369.31
Each
units
NSX Range LV4 3P 250 A 85 kA 690 V - Fixed 161mm 105mm 86mm - - -
RS Stock No. 874-4137
Mfr. Part No.3VA1110-4ED36-0AA0
BrandSiemens
MYR1,122.92
Each
units
Sentron 3VA 3P 100 A 25 kA, 36 kA 690 V 500V Fixed 76.2mm 130mm 88mm General Purpose, Residential Instantaneous MCCB
RS Stock No. 628-8076
Mfr. Part No.PN2-160
BrandEaton
MYR1,498.93
1 Box of 1
Box(es)
- PN2 3P 160 A 80 kA 690 V - Fixed 105mm 184mm 149mm - - -
RS Stock No. 849-4012
Mfr. Part No.LV429652
MYR1,549.53
Each
units
NSX Range LV4 4P 100 A 85 kA 690 V - Fixed 161mm 140mm 86mm - - -
RS Stock No. 849-4611
Mfr. Part No.LV432894
MYR9,331.93
Each
units
NSX Range LV4 4P 630 A 85 kA 690 V - Fixed 255mm 185mm 110mm - - -
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