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庫存編號 831-9185
製造零件編號1SDA068210R1
BrandABB
HK$2,904.93
單位
Protecta XT3D 3P 250 A - 690 V 500V DIN Rail Mount 105mm 150mm 70mm - - -
RS庫存編號 849-4614
製造零件編號LV432895
HK$15,373.70
單位
NSX Range LV4 3P 630 A 85 kA 690 V - Fixed 255mm 140mm 110mm - - -
RS庫存編號 831-9188
製造零件編號1SDA068059R1
BrandABB
HK$5,260.82
單位
Protecta XT3N 3P 250 A 36 kA 690 V 500V DIN Rail Mount 105mm 150mm 70mm - - -
RS庫存編號 849-4015
製造零件編號LV429650
HK$3,401.73
單位
NSX Range LV4 4P 100 A 85 kA 690 V - Fixed 161mm 140mm 86mm - - -
RS庫存編號 776-3348
製造零件編號A9F90325
HK$3,094.00
單位
Acti 9 iC60L 3P 25 A 30 kA 440 V - DIN Rail Mount 54mm 78.5mm 85mm - - -
RS庫存編號 849-3983
製造零件編號LV429637
HK$2,192.13
單位
NSX Range LV4 3P 100 A 85 kA 690 V - Fixed 161mm 105mm 86mm - - -
RS庫存編號 628-8004
製造零件編號NZMN2-M125
BrandEaton
HK$3,640.00
毎盒:1 個
Box(es)
XEnergy NZM2 3P 125 A 50 kA 690 V 750V Fixed 105mm 184mm 149mm - - -
RS庫存編號 831-9181
製造零件編號1SDA068208R1
BrandABB
HK$2,319.91
單位
Protecta XT1D 3P 160 A 36 kA 690 V 500V DIN Rail Mount 76.2mm 130mm 70mm - - -
RS庫存編號 874-4180
製造零件編號3VA1112-4EF36-0AA0
BrandSiemens
HK$5,385.82
單位
Sentron 3VA 3P 125 A 36 kA 690 V 500V Fixed 76.2mm 130mm 88mm General Purpose, Residential Instantaneous MCCB
RS庫存編號 178-7758
製造零件編號LV426474
HK$3,608.33
單位
Compact NSXm 4 50 A 10 kA 690 V - Screw 108mm 137mm 80mm Distribution, Protection Time Delay MCCB
RS庫存編號 874-4228
製造零件編號3VA1196-4EE36-0AA0
BrandSiemens
HK$2,487.17
單位
Sentron 3VA 3P 16 A 36 kA 690 V 500V Fixed 76.2mm 130mm 88mm General Purpose, Residential Instantaneous MCCB
RS庫存編號 874-4183
製造零件編號3VA1120-3EE36-0AA0
BrandSiemens
HK$2,621.28
單位
Sentron 3VA 3P 20 A 25 kA 690 V 500V Fixed 76.2mm 130mm 88mm General Purpose, Residential Instantaneous MCCB
RS庫存編號 178-8065
製造零件編號LV426110
HK$2,740.01
單位
Compact NSXm 4P 16 A 8 kA 690 V - DIN Rail Mount, Fixed Mount 108mm 80mm 137mm Distribution Protection Time Delay MCCB
RS庫存編號 178-7971
製造零件編號LV426767
HK$10,070.85
單位
Compact NSXm 4 100 A 20 kA 690 V - Screw 108mm 144mm 80mm Distribution, Protection Time Delay ELCB
RS庫存編號 454-8124
製造零件編號NZMN1-A80
BrandEaton
HK$2,435.49
單位
XEnergy NZM1 3P 80 A 50 kA 690 V 500V Fixed 90mm 145mm 84.5mm - - -
RS庫存編號 178-8061
製造零件編號LV426106
HK$2,323.60
單位
Compact NSXm 3P 80 A 10 kA 690 V - DIN Rail Mount, Fixed Mount 81mm 80mm 137mm Distribution Protection Time Delay MCCB
RS庫存編號 179-9731
製造零件編號EZD100M3040N
HK$490.52
單位
EZD EZD100M 3 40 A 10 kA 500 V - Fixed Mount 75mm 130mm 60mm Distribution Instantaneous MCCB
RS庫存編號 178-8109
製造零件編號LV426174
HK$2,956.43
單位
Compact NSXm 4P 50 A 8 kA 690 V - DIN Rail Mount, Fixed Mount 108mm 80mm 137mm Distribution Protection Time Delay MCCB
RS庫存編號 178-7947
製造零件編號LV426740
HK$8,525.89
單位
Compact NSXm 3 25 A 65 kA 690 V - Screw 108mm 144mm 80mm Distribution, Protection Time Delay ELCB
RS庫存編號 874-4231
製造零件編號3VA1120-3EF36-0AA0
BrandSiemens
HK$2,844.80
單位
Sentron 3VA 3P 20 A 25 kA 690 V 500V Fixed 76.2mm 130mm 88mm General Purpose, Residential Instantaneous MCCB