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 Breaking Capacity at Maximum Voltage Rating Rated AC Voltage Rated DC Voltage Mounting Style Length Width Depth Break Time Circuit Breaker Type
RS Stock No. 178-7955
Mfr. Part No.LV426748
kr 14 283,86
Each
Units
Compact NSXm 4 160A - 70 kA 690V - - 108mm 144mm 80mm Time Delay -
RS Stock No. 849-4374
Mfr. Part No.LV430850
kr 7 464,96
Each
Units
NSX Range LV4 4 160A - 90 kA 690V - - 161mm 140mm 86mm - -
RS Stock No. 179-9844
Mfr. Part No.LV510571
kr 2 337,85
Each
Units
Easypact CVS100 → 250 Easypact CVS 4 100A - 36 kA 440V - - 140mm 236mm 86mm Instantaneous MCCB
RS Stock No. 178-7755
Mfr. Part No.LV426471
kr 3 874,39
Each
Units
Compact NSXm 4 25A - 50 kA 690V - - 108mm 137mm 80mm Time Delay MCCB
RS Stock No. 178-8244
Mfr. Part No.LV426409
kr 5 149,40
Each
Units
Compact NSXm 3 160A - 50 kA 690V - - 81mm 80mm 137mm Time Delay MCCB
RS Stock No. 178-7979
Mfr. Part No.LV426776
kr 10 407,79
Each
Units
Compact NSXm 4 50A - 36 kA 690V - - 108mm 144mm 80mm Time Delay -
RS Stock No. 874-4203
Mfr. Part No.3VA1116-3EE36-0AA0
BrandSiemens
kr 4 953,89
Each
Units
Sentron 3VA 3 160A - 25 kA 690V 500V - 76.2mm 130mm 88mm Instantaneous MCCB
New
RS Stock No. 209-6886
Mfr. Part No.3VA2010-6HN32-0AA0
BrandSiemens
kr 7 959,50
Each
Units
SENTRON 3VA2 3 100A - - - - - - - - - -
RS Stock No. 178-7838
Mfr. Part No.LV426650
kr 2 170,93
Each
Units
Compact NSXm 3 50A - - 690V - - 81mm 137mm 80mm - -
RS Stock No. 178-7740
Mfr. Part No.LV426457
kr 3 473,28
Each
Units
Compact NSXm 3 100A - 50 kA 690V - - 81mm 137mm 80mm Time Delay MCCB
RS Stock No. 178-8071
Mfr. Part No.LV426116
kr 3 500,50
Each
Units
Compact NSXm 4 80A - 16 kA 690V - - 108mm 80mm 137mm Time Delay MCCB
New
RS Stock No. 209-6830
Mfr. Part No.3VA1150-3EF42-0AA0
BrandSiemens
kr 4 151,79
Each
Units
SENTRON 3VA1 4 50A - - - - - - - - - -
RS Stock No. 849-4129
Mfr. Part No.LV429790
kr 6 285,60
Each
Units
NSX Range LV4 3 100A - 100 kA 690V - - 161mm 105mm 86mm - -
RS Stock No. 178-8123
Mfr. Part No.LV426208
kr 3 480,54
Each
Units
Compact NSXm 3 125A - 20 kA 690V - - 81mm 80mm 137mm Time Delay MCCB
RS Stock No. 179-9790
Mfr. Part No.EZD100M3040MAN
kr 561,17
Each
Units
EZD EZD100M 3 40A - 10 kA 500V - - 75mm 130mm 60mm Instantaneous MCCB
RS Stock No. 178-7925
Mfr. Part No.LV426713
kr 11 158,56
Each
Units
Compact NSXm 3 160A - 25 kA 690V - - 108mm 144mm 80mm Time Delay -
New
RS Stock No. 209-6790
Mfr. Part No.3VA1125-6EE46-0AA0
BrandSiemens
kr 4 828,46
Each
Units
SENTRON 3VA1 4 25A - - - - - - - - - -
RS Stock No. 178-7783
Mfr. Part No.LV426517
kr 4 626,33
Each
Units
Compact NSXm 4 100A - 70 kA 690V - - 108mm 137mm 80mm Time Delay MCCB
RS Stock No. 179-9793
Mfr. Part No.EZD100M3080MAN
kr 561,17
Each
Units
EZD EZD100M 3 80A - 10 kA 500V - - 75mm 130mm 60mm Instantaneous MCCB
RS Stock No. 178-7846
Mfr. Part No.LV426802
kr 1 304,55
Each
Units
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