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 at Maximum Voltage Rating Rated AC Voltage Rated DC Voltage Mounting Style Length Width Depth Break Time Circuit Breaker Type Mounting Hole Diameter
RS庫存編號 849-4179
製造零件編號LV429850
HK$4,267.12
單位
NSX Range LV4 4 100A 90 kA 690V - - 161mm 140mm 86mm - - -
RS庫存編號 849-4377
製造零件編號LV430851
HK$6,028.88
單位
NSX Range LV4 4 160A 90 kA 690V - - 161mm 140mm 86mm - - -
RS庫存編號 849-4188
製造零件編號LV429851
HK$4,267.12
單位
NSX Range LV4 4 100A 90 kA 690V - - 161mm 140mm 86mm - - -
RS庫存編號 849-4191
製造零件編號LV429856
HK$3,568.20
單位
NSX Range LV4 4 100A 90 kA 690V - - 161mm 140mm 86mm - - -
RS庫存編號 849-4545
製造零件編號LV431841
HK$8,247.24
單位
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RS庫存編號 849-3968
製造零件編號LV429633
HK$2,726.64
單位
NSX Range LV4 3 100A 85 kA 690V - - 161mm 105mm 86mm - - -
RS庫存編號 849-4194
製造零件編號LV429854
HK$3,568.20
單位
NSX Range LV4 4 100A 90 kA 690V - - 161mm 140mm 86mm - - -
RS庫存編號 849-4181
製造零件編號LV429852
HK$3,568.20
單位
NSX Range LV4 4 100A 90 kA 690V - - 161mm 140mm 86mm - - -
RS庫存編號 849-4614
製造零件編號LV432895
HK$18,334.69
單位
NSX Range LV4 3 630A 85 kA 690V - - 255mm 140mm 110mm - - -
RS庫存編號 849-3952
製造零件編號LV429630
HK$2,848.56
單位
NSX Range LV4 3 100A 85 kA 690V - - 161mm 105mm 86mm - - -
RS庫存編號 849-4018
製造零件編號LV429651
HK$4,219.00
單位
NSX Range LV4 4 100A 85 kA 690V - - 161mm 140mm 86mm - - -
RS庫存編號 849-4015
製造零件編號LV429650
HK$4,219.00
單位
NSX Range LV4 4 100A 85 kA 690V - - 161mm 140mm 86mm - - -
RS庫存編號 776-3348
製造零件編號A9F90325
HK$3,249.01
單位
Acti 9 iC60L 3 25A 30 kA 440V - DIN Rail Mount 54mm 78.5mm 85mm - - -
RS庫存編號 849-4012
製造零件編號LV429652
HK$3,556.97
單位
NSX Range LV4 4 100A 85 kA 690V - - 161mm 140mm 86mm - - -
RS庫存編號 849-3983
製造零件編號LV429637
HK$2,779.92
單位
NSX Range LV4 3 100A 85 kA 690V - - 161mm 105mm 86mm - - -
RS庫存編號 178-7814
製造零件編號LV426565
HK$2,407.14
單位
Compact NSXm 4 63A 70 kA 690V - - 108mm 137mm 80mm Time Delay MCCB -
RS庫存編號 179-9787
製造零件編號EZD100M3015MAN
HK$423.04
單位
EZD EZD100M 3 15A 10 kA 500V - - 75mm 130mm 60mm Instantaneous MCCB -
RS庫存編號 179-9796
製造零件編號EZD160M3160MAN
HK$853.45
單位
EZD EZD160M 3 160A 10 kA 500V - - 105mm 165mm 60mm Instantaneous MCCB -
RS庫存編號 178-7824
製造零件編號LV426573
HK$2,564.35
單位
Compact NSXm 4 40A 70 kA 690V - - 108mm 137mm 80mm Time Delay MCCB -
RS庫存編號 179-9836
製造零件編號LV510472
HK$585.91
單位
Easypact CVS100 → 250 Easypact CVS 3 100A 40 kA 440V - - 105mm 161mm 86mm Instantaneous MCCB -