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. 2508405955
Mfr. Part No.3VL98166BG40
BrandSiemens
£2,051.84
Each
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RS Stock No. 2508405898
Mfr. Part No.3VL98166BA40
BrandSiemens
£1,675.52
Each
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RS Stock No. 2508401694
Mfr. Part No.3VL92004RB00
BrandSiemens
£6.13
Each
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RS Stock No. 2508403460
Mfr. Part No.3VL95317DC30
BrandSiemens
£180.54
Each
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RS Stock No. 2508401925
Mfr. Part No.3VL92108TC00
BrandSiemens
£76.49
Each
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RS Stock No. 2508404255
Mfr. Part No.3VL96008BC00
BrandSiemens
£9.22
Each
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RS Stock No. 2508405040
Mfr. Part No.3VL97126CL30
BrandSiemens
£1,308.16
Each
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RS Stock No. 2508402776
Mfr. Part No.3VL94004RN40
BrandSiemens
£56.39
Each
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RS Stock No. 2508404687
Mfr. Part No.3VL97106AG30
BrandSiemens
£931.84
Each
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RS Stock No. 2508401688
Mfr. Part No.3VL92004RA00
BrandSiemens
£5.25
Each
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RS Stock No. 2508401470
Mfr. Part No.3VL91004TD30
BrandSiemens
£7.40
Each
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RS Stock No. 2508401919
Mfr. Part No.3VL92107EE45
BrandSiemens
£34.89
Each
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RS Stock No. 2508401161
Mfr. Part No.3VL90008AQ10
BrandSiemens
£11.67
Each
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RS Stock No. 2508397034
Mfr. Part No.3VL93008BM00
BrandSiemens
£4.41
Each
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RS Stock No. 2508401464
Mfr. Part No.3VL91004TC40
BrandSiemens
£10.59
Each
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RS Stock No. 2508404671
Mfr. Part No.3VL97106AE30
BrandSiemens
£689.92
Each
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