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. 874-4155
Mfr. Part No.3VA1110-3EF36-0AA0
BrandSiemens
$399.82
Each
units
Sentron 3VA 3P 100 A 25 kA 690 V 500V Fixed 76.2mm 130mm 88mm General Purpose, Residential Instantaneous MCCB
RS Stock No. 874-4143
Mfr. Part No.3VA1110-3ED36-0AA0
BrandSiemens
$447.76
Each
units
Sentron 3VA 3P 100 A 25 kA 690 V 500V Fixed 76.2mm 130mm 88mm General Purpose, Residential Instantaneous MCCB
RS Stock No. 874-4402
Mfr. Part No.3VA2225-5HL32-0AA0
BrandSiemens
$1,456.68
Each
units
Sentron 3VA 3P 250 A 55 kA 690 V - Fixed 105mm 181mm 107mm Commercial Buildings Instantaneous MCCB
RS Stock No. 874-4168
Mfr. Part No.3VA1110-4EE36-0AA0
BrandSiemens
$500.78
Each
units
Sentron 3VA 3P 100 A 36 kA 690 V 500V Fixed 76.2mm 130mm 88mm General Purpose, Residential Instantaneous MCCB
RS Stock No. 874-4193
Mfr. Part No.3VA1116-3ED36-0AA0
BrandSiemens
$811.55
Each
units
Sentron 3VA 3P 160 A 25 kA 690 V 500V Fixed 76.2mm 130mm 88mm General Purpose, Residential Instantaneous MCCB
RS Stock No. 874-4345
Mfr. Part No.3VA1180-4ED36-0AA0
BrandSiemens
$406.51
Each
units
Sentron 3VA 3P 80 A 36 kA 690 V 500V Fixed 76.2mm 130mm 88mm General Purpose, Residential Instantaneous MCCB
RS Stock No. 874-4219
Mfr. Part No.3VA1116-4EE36-0AA0
BrandSiemens
$910.24
Each
units
Sentron 3VA 3P 160 A 36 kA 690 V 500V Fixed 76.2mm 130mm 88mm General Purpose, Residential Instantaneous MCCB
RS Stock No. 874-4385
Mfr. Part No.3VA2116-5HL36-0AA0
BrandSiemens
$1,150.32
Each
units
Sentron 3VA 3P 160 A 55 kA 690 V - Fixed 105mm 181mm 107mm Commercial Buildings Instantaneous MCCB
RS Stock No. 874-4391
Mfr. Part No.3VA2140-5HL32-0AA0
BrandSiemens
$678.99
Each
units
Sentron 3VA 3P 40 A 55 kA 690 V - Fixed 105mm 181mm 107mm Commercial Buildings Instantaneous MCCB
RS Stock No. 874-4284
Mfr. Part No.3VA1140-3ED36-0AA0
BrandSiemens
$359.39
Each
units
Sentron 3VA 3P 40 A 25 kA 690 V 500V Fixed 76.2mm 130mm 88mm General Purpose, Residential Instantaneous MCCB
RS Stock No. 874-4200
Mfr. Part No.3VA1116-4ED36-0AA0
BrandSiemens
$841.01
Each
units
Sentron 3VA 3P 160 A 36 kA 690 V 500V Fixed 76.2mm 130mm 88mm General Purpose, Residential Instantaneous MCCB
RS Stock No. 874-4294
Mfr. Part No.3VA1140-4EE36-0AA0
BrandSiemens
$400.63
Each
units
Sentron 3VA 3 40 A 36 kA 690 V 500V Fixed 76.2mm 130mm 88mm General Purpose, Residential Instantaneous MCCB
RS Stock No. 874-4405
Mfr. Part No.3VA2163-5HL32-0AA0
BrandSiemens
$678.99
Each
units
Sentron 3VA 3 63 A 55 kA 690 V - Fixed 105mm 181mm 107mm Commercial Buildings Instantaneous MCCB
RS Stock No. 874-4382
Mfr. Part No.3VA2116-5HL32-0AA0
BrandSiemens
$1,113.49
Each
units
Sentron 3VA 3P 160 A 55 kA 690 V - Fixed 105mm 181mm 107mm Commercial Buildings Instantaneous MCCB
RS Stock No. 874-4180
Mfr. Part No.3VA1112-4EF36-0AA0
BrandSiemens
$867.53
Each
units
Sentron 3VA 3P 125 A 36 kA 690 V 500V Fixed 76.2mm 130mm 88mm General Purpose, Residential Instantaneous MCCB
RS Stock No. 874-4206
Mfr. Part No.3VA1116-3EF36-0AA0
BrandSiemens
$939.70
Each
units
Sentron 3VA 3P 160 A 25 kA 690 V 500V Fixed 76.2mm 130mm 88mm General Purpose, Residential Instantaneous MCCB
RS Stock No. 874-4171
Mfr. Part No.3VA1112-4ED36-0AA0
BrandSiemens
$724.66
Each
units
Sentron 3VA 3P 125 A 36 kA 690 V 500V Fixed 76.2mm 130mm 88mm General Purpose, Residential Instantaneous MCCB
RS Stock No. 874-4228
Mfr. Part No.3VA1196-4EE36-0AA0
BrandSiemens
$400.63
Each
units
Sentron 3VA 3P 16 A 36 kA 690 V 500V Fixed 76.2mm 130mm 88mm General Purpose, Residential Instantaneous MCCB
RS Stock No. 874-4159
Mfr. Part No.3VA1110-4EF36-0AA0
BrandSiemens
$552.33
Each
units
Sentron 3VA 3P 100 A 36 kA 690 V 500V Fixed 76.2mm 130mm 88mm General Purpose, Residential Instantaneous MCCB
RS Stock No. 874-4240
Mfr. Part No.3VA1125-3ED36-0AA0
BrandSiemens
$359.39
Each
units
Sentron 3VA 3P 25 A 25 kA 690 V 500V Fixed 76.2mm 130mm 88mm General Purpose, Residential Instantaneous MCCB