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. 849-4012
Mfr. Part No.LV429652
HK$3,840.38
Each
units
NSX Range LV4 4 100A 85 kA 690V - - 161mm 140mm 86mm - - -
RS Stock No. 776-3348
Mfr. Part No.A9F90325
HK$3,761.63
Each
units
Acti 9 iC60L 3 25A 30 kA 440V - DIN Rail Mount 54mm 78.5mm 85mm - - -
RS Stock No. 849-3952
Mfr. Part No.LV429630
HK$3,016.57
Each
units
NSX Range LV4 3 100A 85 kA 690V - - 161mm 105mm 86mm - - -
RS Stock No. 831-9181
Mfr. Part No.1SDA068208R1 XT1D 160 3p F F
BrandABB
HK$3,195.99
Each
units
Protecta XT1D 3 160A 36 kA 690V 500V DIN Rail Mount 76.2mm 130mm 70mm - - -
RS Stock No. 849-4015
Mfr. Part No.LV429650
HK$4,555.15
Each
units
NSX Range LV4 4 100A 85 kA 690V - - 161mm 140mm 86mm - - -
RS Stock No. 831-9185
Mfr. Part No.1SDA068210R1 XT3D 250 3p F F
BrandABB
HK$3,547.81
Each
units
Protecta XT3D 3 250A - 690V 500V DIN Rail Mount 105mm 150mm 70mm - - -
RS Stock No. 538-3849
Mfr. Part No.2CDE283001R0125 E203/125R
BrandABB
HK$1,001.77
Each
units
Pro M E200i 3 125A - 230 V, 400V - DIN Rail 52.5mm 68mm 90mm - - -
RS Stock No. 628-8004
Mfr. Part No.265723 & NZMN2-M125
BrandEaton
HK$3,777.23
1 Box of 1
Box(es)
XEnergy NZM2 3 125A 50 kA 690V 750V - 105mm 184mm 149mm - - -
RS Stock No. 178-8173
Mfr. Part No.LV426278
HK$3,467.97
Each
units
Compact NSXm 4 125A 25 kA 690V - - 108mm 80mm 137mm Time Delay MCCB 4.5mm
New
RS Stock No. 216-4805
Mfr. Part No.3VA2110-6HN36-0AA0
BrandSiemens
HK$7,756.40
Each
units
SENTRON 3VA2 3 100A - - - Fixed - - - - - -
RS Stock No. 178-8174
Mfr. Part No.LV426279
HK$4,041.00
Each
units
Compact NSXm 4 160A 25 kA 690V - - 108mm 80mm 137mm Time Delay MCCB 4.5mm
New
RS Stock No. 212-0239
Mfr. Part No.LV429433
HK$5,113.88
Each
units
Compact NSX - 160A - - - Fixed - - - - - -
RS Stock No. 178-7996
Mfr. Part No.LV426796
HK$10,639.20
Each
units
Compact NSXm 4 50A 70 kA 690V - - 108mm 144mm 80mm Time Delay - -
New
RS Stock No. 210-1629
Mfr. Part No.3VA1116-5EE32-0AA0
BrandSiemens
HK$7,326.69
Each
units
SENTRON 3VA1 3 160A - - - - - - - - - -
New
RS Stock No. 212-0240
Mfr. Part No.LV431495
HK$12,125.42
Each
units
Compact NSX 4 250A - - - - - - - - - -
RS Stock No. 178-7997
Mfr. Part No.LV426797
HK$7,322.89
Each
units
Compact NSXm 4 100A 70 kA 690V - - 108mm 144mm 80mm Time Delay - -
New
RS Stock No. 210-3326
Mfr. Part No.3VA1096-4ED32-0AA0
BrandSiemens
HK$2,589.05
Each
units
3VA1 SENTRON 3 - - - - Fixed - - - - - -
New
RS Stock No. 210-1695
Mfr. Part No.3VA1332-4EF32-0AA0
BrandSiemens
HK$13,858.39
Each
units
SENTRON 3VA1 3 320A - - - - - - - - - -
RS Stock No. 178-7969
Mfr. Part No.LV426765
HK$10,450.19
Each
units
Compact NSXm 4 25A 25 kA 690V - - 108mm 144mm 80mm Time Delay - -
New
RS Stock No. 209-4841
Mfr. Part No.3VA1025-4ED32-0AA0
BrandSiemens
HK$2,379.12
Each
units
Sentron 3VA 3 25A - - - Fixed - - - - - -