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 Rated AC Voltage Rated DC Voltage Mounting Style Length Width Depth Application Break Time Circuit Breaker Type
RS Stock No. 742-2110
Mfr. Part No.LV429840
kr 3 628,80
Each
Units
NSX Range LV 3 100 A 10 kA 690 V - Fixed 161mm 105mm 86mm - - -
RS Stock No. 849-4150
Mfr. Part No.LV429840
kr 3 628,80
Each
Units
NSX Range LV4 3 100 A 90 kA 690 V - Fixed 161mm 105mm 86mm - - -
RS Stock No. 849-4242
Mfr. Part No.LV430631
kr 4 224,96
Each
Units
NSX Range LV4 3 160 A 85 kA 690 V - Fixed 161mm 105mm 86mm - - -
RS Stock No. 849-4352
Mfr. Part No.LV430800
kr 10 380,96
Each
Units
NSX Range LV4 4 160 A 100 kA 690 V - Fixed 161mm 140mm 86mm - - -
RS Stock No. 849-4096
Mfr. Part No.LV429692
kr 4 872,96
Each
Units
NSX Range LV4 4 100 A 100 kA 690 V - Fixed 161mm 140mm 86mm - - -
RS Stock No. 849-3930
Mfr. Part No.LV429622
kr 2 890,08
Each
Units
NSX Range LV4 3 100 A 85 kA 690 V - Fixed 161mm 105mm 86mm - - -
RS Stock No. 849-4078
Mfr. Part No.LV429685
kr 4 574,88
Each
Units
NSX Range LV4 4 100 A 100 kA 690 V - Fixed 161mm 140mm 86mm - - -
RS Stock No. 849-4012
Mfr. Part No.LV429652
kr 4 108,32
Each
Units
NSX Range LV4 4 100 A 85 kA 690 V - Fixed 161mm 140mm 86mm - - -
RS Stock No. 849-4080
Mfr. Part No.LV429687
kr 4 574,88
Each
Units
NSX Range LV4 4 100 A 100 kA 690 V - Fixed 161mm 140mm 86mm - - -
RS Stock No. 849-4141
Mfr. Part No.LV429807
kr 7 763,04
Each
Units
NSX Range LV4 4 100 A 90 kA 690 V - Fixed 161mm 140mm 86mm - - -
RS Stock No. 849-4611
Mfr. Part No.LV432894
kr 22 926,24
Each
Units
NSX Range LV4 4 630 A 85 kA 690 V - Fixed 255mm 185mm 110mm - - -
RS Stock No. 849-3952
Mfr. Part No.LV429630
kr 3 227,04
Each
Units
NSX Range LV4 3 100 A 85 kA 690 V - Fixed 161mm 105mm 86mm - - -
RS Stock No. 849-4087
Mfr. Part No.LV429686
kr 4 574,88
Each
Units
NSX Range LV4 4 100 A 100 kA 690 V - Fixed 161mm 140mm 86mm - - -
RS Stock No. 849-3974
Mfr. Part No.LV429636
kr 3 149,28
Each
Units
NSX Range LV4 3 100 A 85 kA 690 V - Fixed 161mm 105mm 86mm - - -
RS Stock No. 849-4144
Mfr. Part No.LV429802
kr 8 216,64
Each
Units
NSX Range LV4 4 100 A 100 kA 690 V - Fixed 161mm 140mm 86mm - - -
RS Stock No. 179-9738
Mfr. Part No.EZD160M3125N
kr 821,53
Each
Units
EZD EZD160M 3 125 A 10 kA 500 V - Fixed Mount 105mm 165mm 60mm Distribution Instantaneous MCCB
RS Stock No. 178-7811
Mfr. Part No.LV426562
kr 4 003,73
Each
Units
Compact NSXm 4 32 A 70 kA 690 V - Screw 108mm 137mm 80mm Distribution, Protection Time Delay MCCB
RS Stock No. 179-9739
Mfr. Part No.EZD160M3160N
kr 913,16
Each
Units
EZD EZD160M 3 160 A 10 kA 500 V - Fixed Mount 105mm 165mm 60mm Distribution Instantaneous MCCB
RS Stock No. 849-4065
Mfr. Part No.LV429680
kr 5 287,68
Each
Units
NSX Range LV4 4 100 A 100 kA 690 V - Fixed 161mm 140mm 86mm - - -
RS Stock No. 178-7812
Mfr. Part No.LV426563
kr 4 003,73
Each
Units
Compact NSXm 4 40 A 70 kA 690 V - Screw 108mm 137mm 80mm Distribution, Protection Time Delay MCCB