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.

...
Read more Read less

Filters

Viewing 21 - 40 of 1336 products
Results per page
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. 831-9175
Mfr. Part No.1SDA067418R1
BrandABB
£318.50
Each
Units
Protecta XT1N 3P 160 A 36 kA 690 V 500V - 76.2mm 130mm 70mm - - -
RS Stock No. 831-9185
Mfr. Part No.1SDA068210R1
BrandABB
£292.85
Each
Units
Protecta XT3D 3P 250 A - 690 V 500V DIN Rail Mount 105mm 150mm 70mm - - -
RS Stock No. 454-8039
Mfr. Part No.NZMB1-A40
BrandEaton
£169.44
Each
Units
xEnergy NZM1 3P 40 A 25 kA 440 V - Fixed 90mm 145mm 84.5mm - - -
RS Stock No. 831-9169
Mfr. Part No.1SDA067411R1
BrandABB
£196.90
Each
Units
Protecta XT1N 3P 32 A 36 kA 690 V 500V DIN Rail Mount 76.2mm 130mm 70mm - - -
RS Stock No. 628-8054
Mfr. Part No.NZMN2-M200
BrandEaton
£503.53
1 Box of 1
Box(es)
xEnergy NZM2 3P 200 A 50 kA 690 V 750V Fixed 105mm 184mm 149mm - - -
RS Stock No. 831-9179
Mfr. Part No.1SDA068058R1
BrandABB
£405.24
Each
Units
Protecta XT3N 3P 200 A 36 kA 690 V 500V DIN Rail Mount 105mm 150mm 70mm - - -
RS Stock No. 831-9181
Mfr. Part No.1SDA068208R1
BrandABB
£263.81
Each
Units
Protecta XT1D 3P 160 A 36 kA 690 V 500V DIN Rail Mount 76.2mm 130mm 70mm - - -
RS Stock No. 628-8010
Mfr. Part No.NZMN1-M100
BrandEaton
£245.42
1 Box of 1
Box(es)
xEnergy NZM1 3P 100 A 50 kA 690 V 500V Fixed 90mm 145mm 84.5mm - - -
RS Stock No. 874-4402
Mfr. Part No.3VA2225-5HL32-0AA0
BrandSiemens
£612.67
Each
Units
Sentron 3VA 3P 250 A 55 kA 690 V - Fixed 105mm 181mm 107mm Commercial Buildings Instantaneous MCCB
RS Stock No. 454-8067
Mfr. Part No.NZMB1-A80
BrandEaton
£175.39
Each
Units
xEnergy NZM1 3P 80 A 25 kA 440 V - Fixed 90mm 145mm 84.5mm - - -
RS Stock No. 849-4611
Mfr. Part No.LV432894
£1,769.00
Each
Units
NSX Range LV4 4P 630 A 85 kA 690 V - Fixed 255mm 185mm 110mm - - -
RS Stock No. 874-4165
Mfr. Part No.3VA1112-3ED36-0AA0
BrandSiemens
£200.31
Each
Units
Sentron 3VA 3P 125 A 25 kA 690 V 500V Fixed 76.2mm 130mm 88mm General Purpose, Residential Instantaneous MCCB
RS Stock No. 538-3849
Mfr. Part No.E203/125RD
BrandABB
£82.69
Each
Units
Pro M E200i 3P 125 A - 230 V, 400 V - DIN Rail 52.5mm 68mm 90mm - - -
RS Stock No. 849-3964
Mfr. Part No.LV429632
£243.00
Each
Units
NSX Range LV4 3P 100 A 85 kA 690 V - Fixed 161mm 105mm 86mm - - -
RS Stock No. 849-4248
Mfr. Part No.LV430630
£428.00
Each
Units
NSX Range LV4 3P 160 A 85 kA 690 V - Fixed 161mm 105mm 86mm - - -
RS Stock No. 776-3348
Mfr. Part No.A9F90325
£308.70
Each
Units
Acti 9 iC60L 3P 25 A 30 kA 440 V - DIN Rail Mount 54mm 78.5mm 85mm - - -
RS Stock No. 538-3833
Mfr. Part No.E203/100RD
BrandABB
£57.30
Each
Units
Pro M S2CU 3P 100 A - 230 V, 400 V - DIN Rail 52.5mm 68mm 90mm - - -
RS Stock No. 628-8105
Mfr. Part No.PN2-250
BrandEaton
£373.12
1 Box of 1
Box(es)
- PN2 3P 250 A 80 kA 690 V - Fixed 105mm 184mm 149mm - - -
RS Stock No. 628-8082
Mfr. Part No.PN1-125
BrandEaton
£204.68
1 Box of 1
Box(es)
- PN1 3P 125 A 80 kA 690 V - Fixed 90mm 145mm 84.5mm - - -
RS Stock No. 628-8076
Mfr. Part No.PN2-160
BrandEaton
£230.04
1 Box of 1
Box(es)
- PN2 3P 160 A 80 kA 690 V - Fixed 105mm 184mm 149mm - - -
Related Products
Circuit Breaker Compact NSXm 16A 3P 50kA at ...
Description:
Circuit Breaker Compact NSXm 16A 3P 50kA at 380/415V Compression Lug.
Circuit Breaker Compact NSXm 100A 3P 50kA at ...
Description:
Circuit Breaker Compact NSXm 100A 3P 50kA at 380/415V Compression Lug.
Circuit Breaker Compact NSXm 32A 4P 50kA at ...
Description:
Circuit Breaker Compact NSXm 32A 4P 50kA at 380/415V Compression Lug.
Circuit Breaker Compact NSXm 40A 3P 70kA at ...
Description:
Circuit Breaker Compact NSXm 40A 3P 70kA at 380/415V Compression Lug.