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 874-4206
製造零件編號3VA1116-3EF36-0AA0
BrandSiemens
HK$4,373.80
單位
Sentron 3VA 3P 160 A 25 kA 690 V 500V Fixed 76.2mm 130mm 88mm General Purpose, Residential Instantaneous MCCB
RS庫存編號 178-8066
製造零件編號LV426111
HK$2,740.01
單位
Compact NSXm 4P 25 A 8 kA 690 V - DIN Rail Mount, Fixed Mount 108mm 80mm 137mm Distribution Protection Time Delay MCCB
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 20 kA 690 V - Screw 108mm 144mm 80mm Distribution, Protection Time Delay ELCB
RS庫存編號 178-8117
製造零件編號LV426202
HK$2,408.93
單位
Compact NSXm 3P 32 A 10 kA 690 V - DIN Rail Mount, Fixed Mount 81mm 80mm 137mm Distribution Protection Time Delay MCCB
RS庫存編號 849-4431
製造零件編號LV431642
HK$6,313.22
單位
NSX Range LV4 4P 250 A - - - - - - - - - -
RS庫存編號 178-8069
製造零件編號LV426114
HK$2,740.01
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 628-8076
製造零件編號PN2-160
BrandEaton
HK$2,240.00
毎盒:1 個
Box(es)
- PN2 3P 160 A 80 kA 690 V - Fixed 105mm 184mm 149mm - - -
RS庫存編號 178-8075
製造零件編號LV426120
HK$2,956.43
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 178-7910
製造零件編號LV426984
HK$702.96
單位
- - 3 - - - - Cable Mount - - - - - -
RS庫存編號 849-4541
製造零件編號LV431840
HK$8,166.66
單位
NSX Range LV4 4P 250 A - - - - - - - - - -
RS庫存編號 874-4323
製造零件編號3VA1163-3EE36-0AA0
BrandSiemens
HK$2,621.28
單位
Sentron 3VA 3P 63 A 25 kA 690 V 500V Fixed 76.2mm 130mm 88mm General Purpose, Residential Instantaneous MCCB
RS庫存編號 537-5618
製造零件編號NZMH2-VE250
BrandEaton
HK$6,954.00
單位
XEnergy NZM2 3P 250 A 150 kA 690 V 750V Fixed 105mm 184mm 149mm - - -
RS庫存編號 179-9848
製造零件編號LV510607
HK$2,700.30
單位
Easypact CVS100 → 250 Easypact CVS 4 100 A 40 kA 440 V - Fixed Mount 140mm 236mm 86mm Distribution Instantaneous MCCB
RS庫存編號 178-8187
製造零件編號LV426312
HK$3,106.58
單位
Compact NSXm 4P 32 A 10 kA 690 V - DIN Rail Mount, Fixed Mount 108mm 80mm 137mm Distribution Protection Time Delay MCCB
RS庫存編號 849-4309
製造零件編號LV430683
HK$5,174.78
單位
NSX Range LV4 4P 160 A 100 kA 690 V - Fixed 161mm 140mm 86mm - - -
RS庫存編號 178-7905
製造零件編號LV426979
HK$320.58
單位
- - 4 - - - - Cable Mount - - - - - -
RS庫存編號 178-8144
製造零件編號LV426229
HK$6,006.88
單位
Compact NSXm 4P 160 A 20 kA 690 V - DIN Rail Mount, Fixed Mount 108mm 80mm 137mm Distribution Protection Time Delay MCCB
RS庫存編號 178-8139
製造零件編號LV426224
HK$3,145.20
單位
Compact NSXm 4P 50 A 10 kA 690 V - DIN Rail Mount, Fixed Mount 108mm 80mm 137mm Distribution Protection Time Delay MCCB
RS庫存編號 178-7981
製造零件編號LV426778
HK$12,667.10
單位
Compact NSXm 4 160 A 35 kA 690 V - Screw 108mm 144mm 80mm Distribution, Protection Time Delay ELCB
RS庫存編號 178-7855
製造零件編號LV426823
HK$1,214.97
單位
- - - - - 110 → 130 V 125V Clip-On 8mm - - - - -