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.

...
Read more Read less

Filters

Viewing 41 - 60 of 1489 products
Results per page
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
New
RS Stock No. 209-7086
Mfr. Part No.3VA5150-6EC31-0AA0
BrandSiemens
HK$3,442.12
Each
units
Sentron 3VA5 3 50A - - - - - - - - - -
RS Stock No. 178-8114
Mfr. Part No.LV426179
HK$5,862.09
Each
units
Compact NSXm 4 163A - 16 kA 690V - - 108mm 80mm 137mm Time Delay MCCB
New
RS Stock No. 211-6015
Mfr. Part No.3VA1140-5EF32-0AA0
BrandSiemens
HK$3,219.40
Each
units
0AA0 3VA11 3 40A - - - - Fixed - - - - -
New
RS Stock No. 210-1716
Mfr. Part No.3VA2110-6HL36-0AA0
BrandSiemens
HK$6,600.78
Each
units
SENTRON 3VA2 3 100A - - - - - - - - - -
New
RS Stock No. 209-6843
Mfr. Part No.3VA1163-3EE46-0AA0
BrandSiemens
HK$3,705.35
Each
units
SENTRON 3VA1 4 63A - - - - - - - - - -
RS Stock No. 874-4367
Mfr. Part No.3VA1196-4EF36-0AA0
BrandSiemens
HK$2,096.95
Each
units
Sentron 3VA 3 16A - 36 kA 690V 500V - 76.2mm 130mm 88mm Instantaneous MCCB
RS Stock No. 537-5551
Mfr. Part No.259094 & NZMN2-A250
BrandEaton
HK$6,112.39
Each
units
XEnergy NZM2 3 250A - 50 kA 690V 750V - 105mm 184mm 149mm - -
New
RS Stock No. 210-1725
Mfr. Part No.3VA2125-5HN36-0AA0
BrandSiemens
HK$6,135.08
Each
units
SENTRON 3VA2 3 25A - - - - - - - - - -
New
RS Stock No. 210-1708
Mfr. Part No.3VA2063-5HN32-0AA0
BrandSiemens
HK$5,851.61
Each
units
SENTRON 3VA2 3 63A - - - - - - - - - -
RS Stock No. 178-8211
Mfr. Part No.LV426356
HK$2,686.25
Each
units
Compact NSXm 3 80A - 36 kA 690V - - 81mm 80mm 137mm Time Delay MCCB
RS Stock No. 849-4071
Mfr. Part No.LV429683
HK$4,038.32
Each
units
NSX Range LV4 4 100A - 100 kA 690V - - 161mm 140mm 86mm - -
RS Stock No. 849-4380
Mfr. Part No.LV430853
HK$5,662.80
Each
units
NSX Range LV4 4 160A - 90 kA 690V - - 161mm 140mm 86mm - -
New
RS Stock No. 211-5976
Mfr. Part No.3VA1110-5MH32-0AA0
BrandSiemens
HK$3,593.98
Each
units
0AA0 3VA11 3 100A - - - - Fixed - - - - -
New
RS Stock No. 210-1660
Mfr. Part No.3VA1140-5EF46-0AA0
BrandSiemens
HK$4,565.88
Each
units
SENTRON 3VA1 4 40A - - - - - - - - - -
RS Stock No. 178-7973
Mfr. Part No.LV426768
HK$11,275.63
Each
units
Compact NSXm 4 160A - 25 kA 690V - - 108mm 144mm 80mm Time Delay -
New
RS Stock No. 209-6840
Mfr. Part No.3VA1150-6MH32-0AA0
BrandSiemens
HK$3,199.15
Each
units
SENTRON 3VA1 3 50A - - - - - - - - - -
New
RS Stock No. 209-7033
Mfr. Part No.3VA1463-5EF32-0AA0
BrandSiemens
HK$19,842.83
Each
units
Sentron 3VA1 3 320A - - - - - - - - - -
RS Stock No. 178-8123
Mfr. Part No.LV426208
HK$3,351.92
Each
units
Compact NSXm 3 125A - 20 kA 690V - - 81mm 80mm 137mm Time Delay MCCB
RS Stock No. 849-4292
Mfr. Part No.LV430680
HK$7,035.40
Each
units
NSX Range LV4 4 160A - 100 kA 690V - - 161mm 140mm 86mm - -
RS Stock No. 874-4398
Mfr. Part No.3VA2125-5HL36-0AA0
BrandSiemens
HK$3,865.92
Each
units
Sentron 3VA 3 25A - 55 kA 690V - - 105mm 181mm 107mm Instantaneous MCCB
Related Products
The Laserliner 640x480pixel resolution inspection camera kit has ...
Description:
The Laserliner 640x480pixel resolution inspection camera kit has a professional video inspection system for visually inspecting areas that are difficult to access over a great distance. It has a 320x240pixel display resolution and 5mm waterproof camera snake. The camera snake ...
The Laserliner 17mm probe Inspection Camera has a ...
Description:
The Laserliner 17mm probe Inspection Camera has a 1.5m probe length and can focus from 2cm to 30cm, The display has 320 x 240 pixels (Display) and 640 x 480 pixels resolution (Camera), LED. Waterproof camera head and cableREC (record) ...
The Laserliner VideoFlex G3 ArcView is a recordable ...
Description:
The Laserliner VideoFlex G3 ArcView is a recordable inspection camera with an manual articulating viewing camera with a maximum adjustment up to 130 degrees. The camera probe is interchangeable and come with a 9mm head and 4 high intensity LED ...
The RS Pro Inspection endoscope kit is designed ...
Description:
The RS Pro Inspection endoscope kit is designed to make visual checks in hard-to-reach areas so much easier. Light and easy to manipulate, this device is ideal for investigating, identifying and resolving problems with its flexible extension cable and handy ...