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. 454-8073
Mfr. Part No.NZMB1-A100
BrandEaton
HK$1,623.65
Each
units
XEnergy NZM1 3P 100 A 25 kA 440 V - Fixed 90mm 145mm 84.5mm - - -
RS Stock No. 454-8039
Mfr. Part No.NZMB1-A40
BrandEaton
HK$1,615.00
Each
units
XEnergy NZM1 3P 40 A 25 kA 440 V - Fixed 90mm 145mm 84.5mm - - -
RS Stock No. 537-5545
Mfr. Part No.NZMN2-A200
BrandEaton
HK$4,148.57
Each
units
XEnergy NZM2 3P 200 A 50 kA 690 V 750V Fixed 105mm 184mm 149mm - - -
RS Stock No. 628-8060
Mfr. Part No.PN1-100
BrandEaton
HK$1,586.20
1 Box of 1
Box(es)
- PN1 3P 100 A 80 kA 690 V - Fixed 90mm 145mm 84.5mm - - -
RS Stock No. 628-8054
Mfr. Part No.NZMN2-M200
BrandEaton
HK$5,386.55
1 Box of 1
Box(es)
XEnergy NZM2 3P 200 A 50 kA 690 V 750V Fixed 105mm 184mm 149mm - - -
RS Stock No. 628-8004
Mfr. Part No.NZMN2-M125
BrandEaton
HK$3,640.00
1 Box of 1
Box(es)
XEnergy NZM2 3P 125 A 50 kA 690 V 750V Fixed 105mm 184mm 149mm - - -
RS Stock No. 628-8010
Mfr. Part No.NZMN1-M100
BrandEaton
HK$2,390.00
1 Box of 1
Box(es)
XEnergy NZM1 3P 100 A 50 kA 690 V 500V Fixed 90mm 145mm 84.5mm - - -
RS Stock No. 454-8130
Mfr. Part No.NZMN1-A100
BrandEaton
HK$2,562.88
Each
units
XEnergy NZM1 3P 100 A 50 kA 690 V 750V Fixed 90mm 145mm 84.5mm - - -
RS Stock No. 537-5589
Mfr. Part No.NZMN2-VE250
BrandEaton
HK$5,890.00
Each
units
XEnergy NZM2 3P 250 A 50 kA 690 V 750V Fixed 105mm 184mm 149mm - - -
RS Stock No. 628-8076
Mfr. Part No.PN2-160
BrandEaton
HK$2,240.00
1 Box of 1
Box(es)
- PN2 3P 160 A 80 kA 690 V - Fixed 105mm 184mm 149mm - - -
RS Stock No. 628-8026
Mfr. Part No.NZMN2-M160
BrandEaton
HK$4,130.00
1 Box of 1
Box(es)
XEnergy NZM2 3P 160 A 50 kA 690 V 750V Fixed 105mm 184mm 149mm - - -
RS Stock No. 454-8146
Mfr. Part No.NZMN1-A125
BrandEaton
HK$4,055.73
Each
units
XEnergy NZM1 3P 125 A 50 kA 690 V 750V Fixed 90mm 145mm 84.5mm - - -
RS Stock No. 628-7988
Mfr. Part No.NZMN1-M63
BrandEaton
HK$2,010.00
1 Box of 1
Box(es)
XEnergy NZM1 3P 63 A 50 kA 690 V 500V Fixed 90mm 145mm 84.5mm - - -
RS Stock No. 454-8118
Mfr. Part No.NZMN1-A63
BrandEaton
HK$2,384.82
Each
units
XEnergy NZM1 3P 63 A 50 kA 690 V 500V Fixed 90mm 145mm 84.5mm - - -
RS Stock No. 628-8032
Mfr. Part No.NZMN2-A160
BrandEaton
HK$3,650.00
1 Box of 1
Box(es)
XEnergy NZM2 3P 160 A 50 kA 690 V 750V Fixed 105mm 184mm 149mm - - -
RS Stock No. 537-5595
Mfr. Part No.NZMH2-VE100
BrandEaton
HK$4,050.00
Each
units
XEnergy NZM2 3P 100 A 150 kA 690 V 750V Fixed 105mm 184mm 149mm - - -
RS Stock No. 628-8048
Mfr. Part No.PN1-63
BrandEaton
HK$1,300.00
1 Box of 1
Box(es)
- PN1 3P 63 A 80 kA 690 V - Fixed 90mm 145mm 84.5mm - - -
RS Stock No. 537-5551
Mfr. Part No.NZMN2-A250
BrandEaton
HK$5,149.00
Each
units
XEnergy NZM2 3P 250 A 50 kA 690 V 750V Fixed 105mm 184mm 149mm - - -
RS Stock No. 628-7994
Mfr. Part No.NZMN1-M80
BrandEaton
HK$2,160.00
1 Box of 1
Box(es)
XEnergy NZM1 3P 80 A 50 kA 690 V 500V Fixed 90mm 145mm 84.5mm - - -
RS Stock No. 628-8082
Mfr. Part No.PN1-125
BrandEaton
HK$1,990.00
1 Box of 1
Box(es)
- PN1 3P 125 A 80 kA 690 V - Fixed 90mm 145mm 84.5mm - - -