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 MCCBAlthough 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 178-7973
製造零件編號LV426768
HK$12,256.12
單位
Compact NSXm 4 160 A 25 kA 690 V - Screw 108mm 144mm 80mm Distribution, Protection Time Delay ELCB
RS庫存編號 178-7921
製造零件編號LV426710
HK$7,753.89
單位
Compact NSXm 3 25 A 25 kA 690 V - Screw 108mm 144mm 80mm Distribution, Protection Time Delay ELCB
RS庫存編號 849-4466
製造零件編號LV431681
HK$9,380.80
單位
NSX Range LV4 4P 250 A 100 kA 690 V - Fixed 161mm 140mm 86mm - - -
RS庫存編號 849-4618
製造零件編號LV432896
HK$21,701.68
單位
NSX Range LV4 4P 630 A 85 kA 690 V - Fixed 255mm 185mm 110mm - - -
RS庫存編號 178-7905
製造零件編號LV426979
HK$334.96
單位
- - 4 - - - - Cable Mount - - - - - -
RS庫存編號 178-7847
製造零件編號LV426803
HK$1,214.97
單位
- - - - - 110 → 130 V 125V Clip-On 8mm - - - - -
RS庫存編號 178-7761
製造零件編號LV426477
HK$4,234.52
單位
Compact NSXm 4 100 A 50 kA 690 V - Screw 108mm 137mm 80mm Distribution, Protection Time Delay MCCB
RS庫存編號 849-4422
製造零件編號LV431641
HK$8,122.40
單位
NSX Range LV4 4P 250 A 85 kA 690 V - Fixed 161mm 140mm 86mm - - -
RS庫存編號 178-7798
製造零件編號LV426550
HK$3,208.93
單位
Compact NSXm 3 16 A 70 kA 690 V - Screw 81mm 137mm 80mm Distribution, Protection Time Delay MCCB
RS庫存編號 454-8045
製造零件編號NZMB1-A50
BrandEaton
HK$2,486.94
單位
XEnergy NZM1 3P 50 A 25 kA 440 V - Fixed 90mm 145mm 84.5mm - - -
RS庫存編號 178-7822
製造零件編號LV426571
HK$3,973.20
單位
Compact NSXm 4 25 A 70 kA 690 V - Screw 108mm 137mm 80mm Distribution, Protection Time Delay MCCB
RS庫存編號 179-9828
製造零件編號LV510443
HK$715.27
單位
Easypact CVS100 → 250 Easypact CVS 3 100 A 36 kA 440 V - Fixed Mount 105mm 161mm 86mm Motor Instantaneous MCCB
RS庫存編號 178-7790
製造零件編號LV426523
HK$3,973.20
單位
Compact NSXm 4 40 A 70 kA 690 V - Screw 108mm 137mm 80mm Distribution, Protection Time Delay MCCB
RS庫存編號 178-7901
製造零件編號LV426967
HK$351.09
單位
- - 3 15 → 125 A - - - Fixed Mount - - - - - -
RS庫存編號 178-7802
製造零件編號LV426554
HK$3,208.93
單位
Compact NSXm 3 50 A 70 kA 690 V - Screw 81mm 137mm 80mm Distribution, Protection Time Delay MCCB
RS庫存編號 874-4256
製造零件編號3VA1125-4EF36-0AA0
BrandSiemens
HK$2,734.06
單位
Sentron 3VA 3P 25 A 36 kA 690 V 500V Fixed 76.2mm 130mm 88mm General Purpose, Residential Instantaneous MCCB
RS庫存編號 178-8239
製造零件編號LV426404
HK$2,895.35
單位
Compact NSXm 3P 50 A 50 kA 690 V - DIN Rail Mount, Fixed Mount 81mm 80mm 137mm Distribution Protection Time Delay MCCB
RS庫存編號 178-7769
製造零件編號LV426504
HK$3,208.93
單位
Compact NSXm 3 50 A 70 kA 690 V - Screw 81mm 137mm 80mm Distribution, Protection Time Delay MCCB
RS庫存編號 179-9727
製造零件編號EZD100M3015N
HK$490.52
單位
EZD EZD100M 3 15 A 10 kA 500 V - Fixed Mount 75mm 130mm 60mm Distribution Instantaneous MCCB
RS庫存編號 849-4131
製造零件編號LV429797
HK$4,999.28
單位
NSX Range LV4 3P 100 A 90 kA 690 V - Fixed 161mm 105mm 86mm - - -