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 Breaking Capacity at Maximum Voltage Rating Rated AC Voltage Rated DC Voltage Mounting Style Length Width Depth Break Time Circuit Breaker Type
RS Stock No. 849-4150
Mfr. Part No.LV429840
kr 3 628,80
Each
Units
NSX Range LV4 3 100A - 90 kA 690V - - 161mm 105mm 86mm - -
RS Stock No. 742-2110
Mfr. Part No.LV429840
kr 3 628,80
Each
Units
NSX Range LV 3 100A - 10 kA 690V - - 161mm 105mm 86mm - -
RS Stock No. 849-4242
Mfr. Part No.LV430631
kr 4 224,96
Each
Units
NSX Range LV4 3 160A - 85 kA 690V - - 161mm 105mm 86mm - -
RS Stock No. 849-4352
Mfr. Part No.LV430800
kr 10 380,96
Each
Units
NSX Range LV4 4 160A - 100 kA 690V - - 161mm 140mm 86mm - -
RS Stock No. 831-9169
Mfr. Part No.1SDA067411R1
BrandABB
kr 1 622,32
Each
Units
Protecta XT1N 3 32A - 36 kA 690V 500V DIN Rail Mount 76.2mm 130mm 70mm - -
RS Stock No. 849-4096
Mfr. Part No.LV429692
kr 4 872,96
Each
Units
NSX Range LV4 4 100A - 100 kA 690V - - 161mm 140mm 86mm - -
RS Stock No. 849-3930
Mfr. Part No.LV429622
kr 2 890,08
Each
Units
NSX Range LV4 3 100A - 85 kA 690V - - 161mm 105mm 86mm - -
RS Stock No. 849-4012
Mfr. Part No.LV429652
kr 4 108,32
Each
Units
NSX Range LV4 4 100A - 85 kA 690V - - 161mm 140mm 86mm - -
RS Stock No. 849-4078
Mfr. Part No.LV429685
kr 4 574,88
Each
Units
NSX Range LV4 4 100A - 100 kA 690V - - 161mm 140mm 86mm - -
RS Stock No. 454-8051
Mfr. Part No.259077 & NZMB1-A63
BrandEaton
kr 2 041,86
Each
Units
xEnergy NZM1 3 63A - 25 kA 440V - - 90mm 145mm 84.5mm - -
RS Stock No. 831-9181
Mfr. Part No.1SDA068208R1
BrandABB
kr 1 991,84
Each
Units
Protecta XT1D 3 160A - 36 kA 690V 500V DIN Rail Mount 76.2mm 130mm 70mm - -
RS Stock No. 831-9179
Mfr. Part No.1SDA068058R1
BrandABB
kr 5 591,97
Each
Units
Protecta XT3N 3 200A - 36 kA 690V 500V DIN Rail Mount 105mm 150mm 70mm - -
RS Stock No. 849-4087
Mfr. Part No.LV429686
kr 4 574,88
Each
Units
NSX Range LV4 4 100A - 100 kA 690V - - 161mm 140mm 86mm - -
RS Stock No. 849-4141
Mfr. Part No.LV429807
kr 7 763,04
Each
Units
NSX Range LV4 4 100A - 90 kA 690V - - 161mm 140mm 86mm - -
RS Stock No. 874-4206
Mfr. Part No.3VA1116-3EF36-0AA0
BrandSiemens
kr 6 969,59
Each
Units
Sentron 3VA 3 160A - 25 kA 690V 500V - 76.2mm 130mm 88mm Instantaneous MCCB
RS Stock No. 849-4080
Mfr. Part No.LV429687
kr 4 574,88
Each
Units
NSX Range LV4 4 100A - 100 kA 690V - - 161mm 140mm 86mm - -
RS Stock No. 537-5595
Mfr. Part No.259125 & NZMH2-VE100
BrandEaton
kr 7 409,70
Each
Units
xEnergy NZM2 3 100A - 150 kA 690V 750V - 105mm 184mm 149mm - -
RS Stock No. 874-4240
Mfr. Part No.3VA1125-3ED36-0AA0
BrandSiemens
kr 2 661,99
Each
Units
Sentron 3VA 3 25A - 25 kA 690V 500V - 76.2mm 130mm 88mm Instantaneous MCCB
RS Stock No. 628-8082
Mfr. Part No.259142 & PN1-125
BrandEaton
kr 2 360,90
1 Box of 1
Box(es)
- PN1 3 125A - 80 kA 690V - - 90mm 145mm 84.5mm - -
RS Stock No. 874-4335
Mfr. Part No.3VA1163-4EE36-0AA0
BrandSiemens
kr 2 961,09
Each
Units
Sentron 3VA 3 63A - 36 kA 690V 500V - 76.2mm 130mm 88mm Instantaneous MCCB