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 at Maximum Voltage Rating Rated AC Voltage Rated DC Voltage Mounting Style Length Width Depth Break Time Circuit Breaker Type Mounting Hole Diameter
RS Stock No. 874-4240
Mfr. Part No.3VA1125-3ED36-0AA0
BrandSiemens
TWD10,701.00
Each
units
Sentron 3VA 3 25A 25 kA 690V 500V - 76.2mm 130mm 88mm Instantaneous MCCB 4.2mm
RS Stock No. 874-4278
Mfr. Part No.3VA1196-3ED36-0AA0
BrandSiemens
TWD10,701.00
Each
units
Sentron 3VA 3 16A 25 kA 690V 500V - 76.2mm 130mm 88mm Instantaneous MCCB 4.2mm
RS Stock No. 874-4234
Mfr. Part No.3VA1120-4ED36-0AA0
BrandSiemens
TWD11,022.00
Each
units
Sentron 3VA 3 20A 36 kA 690V 500V - 76.2mm 130mm 88mm Instantaneous MCCB 4.2mm
New
RS Stock No. 209-7015
Mfr. Part No.3VA1180-5EF32-0AA0
BrandSiemens
TWD14,428.00
Each
units
Sentron 3VA1 3 80A - - - - - - - - - -
New
RS Stock No. 209-7061
Mfr. Part No.3VA2116-5HN36-0AA0
BrandSiemens
TWD40,479.00
Each
units
Sentron 3VA2 3 160A - - - - - - - - - -
New
RS Stock No. 209-6865
Mfr. Part No.3VA1180-6EE32-0AA0
BrandSiemens
TWD13,426.00
Each
units
SENTRON 3VA1 3 80A - - - - - - - - - -
New
RS Stock No. 209-7016
Mfr. Part No.3VA1180-6ED32-0AA0
BrandSiemens
TWD12,264.00
Each
units
Sentron 3VA1 3 80A - - - - - - - - - -
New
RS Stock No. 211-5981
Mfr. Part No.3VA1112-4EE46-0AA0
BrandSiemens
TWD29,618.00
Each
units
0AA0 3VA11 4 125A - - - Fixed - - - - - -
New
RS Stock No. 209-6804
Mfr. Part No.3VA1132-5EF42-0AA0
BrandSiemens
TWD17,113.00
Each
units
SENTRON 3VA1 4 32A - - - - - - - - - -
New
RS Stock No. 211-3723
Mfr. Part No.3VA1120-5EF32-0AA0
BrandSiemens
TWD12,745.00
Each
units
SENTRON 3VA1 3 20A - - - Fixed - - - - - -
New
RS Stock No. 209-6737
Mfr. Part No.3VA1025-2ED32-0AA0
BrandSiemens
TWD8,978.00
Each
units
SENTRON 3VA1 3 25A - - - - - - - - - -
New
RS Stock No. 209-6866
Mfr. Part No.3VA1180-6EF46-0AA0
BrandSiemens
TWD21,482.00
Each
units
SENTRON 3VA1 4 80A - - - - - - - - - -
New
RS Stock No. 209-7066
Mfr. Part No.3VA2116-6HN42-0AA0
BrandSiemens
TWD57,312.00
Each
units
Sentron 3VA2 4 160A - - - - - - - - - -
New
RS Stock No. 209-6754
Mfr. Part No.3VA1112-3EE42-0AA0
BrandSiemens
TWD27,373.00
Each
units
SENTRON 3VA1 4 125A - - - - - - - - - -
New
RS Stock No. 209-6805
Mfr. Part No.3VA1132-5EF46-0AA0
BrandSiemens
TWD18,556.00
Each
units
SENTRON 3VA1 4 32A - - - - - - - - - -
RS Stock No. 874-4335
Mfr. Part No.3VA1163-4EE36-0AA0
BrandSiemens
TWD11,583.00
Each
units
Sentron 3VA 3 63A 36 kA 690V 500V - 76.2mm 130mm 88mm Instantaneous MCCB 4.2mm
New
RS Stock No. 209-6965
Mfr. Part No.3VA1110-4GF46-0AA0
BrandSiemens
TWD22,163.00
Each
units
Sentron 3VA1 4 100A - - - - - - - - - -
New
RS Stock No. 209-6739
Mfr. Part No.3VA1032-3ED32-0AA0
BrandSiemens
TWD9,298.00
Each
units
SENTRON 3VA1 3 32A - - - - - - - - - -
New
RS Stock No. 209-7067
Mfr. Part No.3VA2125-5MN32-0AA0
BrandSiemens
TWD23,766.00
Each
units
Sentron 3VA2 3 25A - - - - - - - - - -
New
RS Stock No. 209-7017
Mfr. Part No.3VA1180-6EE36-0AA0
BrandSiemens
TWD14,508.00
Each
units
Sentron 3VA1 3 80A - - - - - - - - - -