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
New
RS Stock No. 210-1703
Mfr. Part No.3VA2040-5HN32-0AA0
BrandSiemens
MYR3,043.45
Each
units
SENTRON 3VA2 3 40A - - - - - - - - - -
New
RS Stock No. 209-6903
Mfr. Part No.3VA2063-6HN32-0AA0
BrandSiemens
MYR3,364.65
Each
units
SENTRON 3VA2 3 63A - - - - - - - - - -
RS Stock No. 874-4278
Mfr. Part No.3VA1196-3ED36-0AA0
BrandSiemens
MYR1,491.17
Each
units
Sentron 3VA 3 16A 25 kA 690V 500V - 76.2mm 130mm 88mm Instantaneous MCCB 4.2mm
RS Stock No. 178-7798
Mfr. Part No.LV426550
MYR2,076.92
Each
units
Compact NSXm 3 16A 70 kA 690V - - 81mm 137mm 80mm Time Delay MCCB -
New
RS Stock No. 212-0254
Mfr. Part No.LV432094
MYR5,986.86
Each
units
Compact NSX 4 400A - - - - - - - - - -
RS Stock No. 849-4510
Mfr. Part No.LV431790
MYR6,060.21
Each
units
NSX Range LV4 3 250A 10 kA 690V - - 161mm 105mm 86mm - - -
New
RS Stock No. 209-7032
Mfr. Part No.3VA1332-5EF32-0AA0
BrandSiemens
MYR7,266.37
Each
units
Sentron 3VA1 3 250A - - - - - - - - - -
New
RS Stock No. 209-6868
Mfr. Part No.3VA1196-3EF32-0AA0
BrandSiemens
MYR1,463.81
Each
units
SENTRON 3VA1 3 16A - - - - - - - - - -
New
RS Stock No. 209-7035
Mfr. Part No.3VA2010-5HN42-0AA0
BrandSiemens
MYR4,470.40
Each
units
Sentron 3VA2 4 630A - - - - - - - - - -
RS Stock No. 178-7728
Mfr. Part No.LV426426
MYR2,581.78
Each
units
Compact NSXm 4 80A 50 kA 690V - - 108mm 137mm 80mm Time Delay MCCB -
New
RS Stock No. 211-3755
Mfr. Part No.3VA2010-6KP46-0AA0
BrandSiemens
MYR8,214.16
Each
units
SENTRON 3VA2 4 100A - - - Fixed - - - - - -
New
RS Stock No. 210-1677
Mfr. Part No.3VA1180-4EF32-0AA0
BrandSiemens
MYR1,742.88
Each
units
SENTRON 3VA1 3 80A - - - - - - - - - -
New
RS Stock No. 210-1659
Mfr. Part No.3VA1140-5EF36-0AA0
BrandSiemens
MYR1,821.86
Each
units
SENTRON 3VA1 3 40A - - - - - - - - - -
New
RS Stock No. 210-1678
Mfr. Part No.3VA1180-5EE32-0AA0
BrandSiemens
MYR1,642.83
Each
units
SENTRON 3VA1 3 80A - - - - - - - - - -
New
RS Stock No. 209-5255
Mfr. Part No.3VA2510-6HN42-0AA0
BrandSiemens
MYR30,013.27
Each
units
Sentron 3VA 4 1kA - - - Fixed - - - - - -
RS Stock No. 178-7787
Mfr. Part No.LV426520
MYR2,422.40
Each
units
Compact NSXm 4 16A 70 kA 690V - - 108mm 137mm 80mm Time Delay MCCB -
New
RS Stock No. 210-1711
Mfr. Part No.3VA2063-6HL36-0AA0
BrandSiemens
MYR3,169.82
Each
units
SENTRON 3VA2 3 63A - - - - - - - - - -
New
RS Stock No. 210-1613
Mfr. Part No.3VA1110-5EE42-0AA0
BrandSiemens
MYR2,411.59
Each
units
SENTRON 3VA1 4 100A - - - - - - - - - -
New
RS Stock No. 211-3807
Mfr. Part No.3VA2440-5KP32-0AA0
BrandSiemens
MYR14,585.40
Each
units
SENTRON 3VA2 3 400A - - - Fixed - - - - - -
New
RS Stock No. 209-5168
Mfr. Part No.3VA2163-5KP32-0AA0
BrandSiemens
MYR6,213.27
Each
units
Sentron 3VA 3 63A - - - Fixed - - - - - -