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. 210-1607
Mfr. Part No.3VA1025-3ED32-0AA0
BrandSiemens
HK$2,408.68
Each
units
SENTRON 3VA1 3 25A - - - - - - - - - -
New
RS Stock No. 209-6894
Mfr. Part No.3VA2025-6HN32-0AA0
BrandSiemens
HK$6,810.75
Each
units
SENTRON 3VA2 3 25A - - - - - - - - - -
New
RS Stock No. 209-6940
Mfr. Part No.3VA2220-5MQ32-0AA0
BrandSiemens
HK$18,376.57
Each
units
SENTRON 3VA2 3 200A - - - - - - - - - -
New
RS Stock No. 210-1608
Mfr. Part No.3VA1108-5MG32-0AA0
BrandSiemens
HK$3,062.76
Each
units
SENTRON 3VA1 3 8A - - - - - - - - - -
New
RS Stock No. 210-1618
Mfr. Part No.3VA1112-1AA46-0AA0
BrandSiemens
HK$4,505.89
Each
units
SENTRON 3VA1 4 125A - - - - - - - - - -
New
RS Stock No. 209-6741
Mfr. Part No.3VA1063-2ED32-0AA0
BrandSiemens
HK$2,325.62
Each
units
SENTRON 3VA1 3 63A - - - - - - - - - -
New
RS Stock No. 209-6941
Mfr. Part No.3VA2325-5HL32-0AA0
BrandSiemens
HK$15,677.18
Each
units
SENTRON 3VA2 3 250A - - - - - - - - - -
New
RS Stock No. 209-6752
Mfr. Part No.3VA1112-3ED32-0AA0
BrandSiemens
HK$5,118.44
Each
units
SENTRON 3VA1 3 125A - - - - - - - - - -
New
RS Stock No. 209-6895
Mfr. Part No.3VA2040-5HL46-0AA0
BrandSiemens
HK$7,786.68
Each
units
SENTRON 3VA2 4 40A - - - - - - - - - -
New
RS Stock No. 209-6904
Mfr. Part No.3VA2063-6KP32-0AA0
BrandSiemens
HK$13,081.62
Each
units
SENTRON 3VA2 3 63A - - - - - - - - - -
New
RS Stock No. 209-6783
Mfr. Part No.3VA1125-3EF46-0AA0
BrandSiemens
HK$4,246.34
Each
units
SENTRON 3VA1 4 25A - - - - - - - - - -
New
RS Stock No. 210-1721
Mfr. Part No.3VA2116-6HL36-0AA0
BrandSiemens
HK$10,195.36
Each
units
SENTRON 3VA2 3 160A - - - - - - - - - -
New
RS Stock No. 209-6997
Mfr. Part No.3VA1150-4EE42-0AA0
BrandSiemens
HK$3,758.37
Each
units
Sentron 3VA1 4 50A - - - - - - - - - -
New
RS Stock No. 210-1613
Mfr. Part No.3VA1110-5EE42-0AA0
BrandSiemens
HK$4,879.65
Each
units
SENTRON 3VA1 4 100A - - - - - - - - - -
New
RS Stock No. 209-6942
Mfr. Part No.3VA2325-5HN32-0AA0
BrandSiemens
HK$17,545.99
Each
units
SENTRON 3VA2 3 250A - - - - - - - - - -
New
RS Stock No. 210-1610
Mfr. Part No.3VA1110-4ED32-0AA0
BrandSiemens
HK$3,291.17
Each
units
SENTRON 3VA1 3 100A - - - - - - - - - -
New
RS Stock No. 210-1628
Mfr. Part No.3VA1116-4GF46-0AA0
BrandSiemens
HK$10,486.06
Each
units
SENTRON 3VA1 4 160A - - - - - - - - - -
New
RS Stock No. 210-1695
Mfr. Part No.3VA1332-4EF32-0AA0
BrandSiemens
HK$13,393.09
Each
units
SENTRON 3VA1 3 320A - - - - - - - - - -
New
RS Stock No. 211-5969
Mfr. Part No.3VA1050-4ED32-0AA0
BrandSiemens
HK$2,439.83
Each
units
0AA0 3VA10 3 50A - - - Fixed - - - - - -
New
RS Stock No. 210-1749
Mfr. Part No.3VA5160-6ED31-0AA0
BrandSiemens
HK$3,260.02
Each
units
SENTRON 3VA5 3 125A - - - - - - - - - -