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.

...
顯示內容 隱藏內容

篩選條件

正在檢視 1 - 20,共 895 項產品
Results per page
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
全新
RS庫存編號 210-1658
製造零件編號3VA1140-4EF42-0AA0
BrandSiemens
HK$4,307.92
單位
SENTRON 3VA1 4 40A - - - - - - - - - -
全新
RS庫存編號 210-1659
製造零件編號3VA1140-5EF36-0AA0
BrandSiemens
HK$3,813.74
單位
SENTRON 3VA1 3 40A - - - - - - - - - -
全新
RS庫存編號 211-3802
製造零件編號3VA2325-5KP42-0AA0
BrandSiemens
HK$30,509.95
單位
SENTRON 3VA2 4 250A - - - Fixed - - - - - -
全新
RS庫存編號 211-6008
製造零件編號3VA1140-3EE42-0AA0
BrandSiemens
HK$3,566.66
單位
0AA0 3VA11 4 40A - - - Fixed - - - - - -
全新
RS庫存編號 210-1668
製造零件編號3VA1150-6ED32-0AA0
BrandSiemens
HK$2,986.54
單位
SENTRON 3VA1 3 50A - - - - - - - - - -
全新
RS庫存編號 209-5005
製造零件編號3VA1150-6EF36-0AA0
BrandSiemens
HK$3,695.22
單位
Sentron 3VA 3 50A - - - Fixed - - - - - -
全新
RS庫存編號 211-5981
製造零件編號3VA1112-4EE46-0AA0
BrandSiemens
HK$7,939.03
單位
0AA0 3VA11 4 125A - - - Fixed - - - - - -
全新
RS庫存編號 211-5975
製造零件編號3VA1110-5EF36-0AA0
BrandSiemens
HK$4,533.52
單位
0AA0 3VA11 3 100A - - - Fixed - - - - - -
RS庫存編號 874-4225
製造零件編號3VA1132-4EF36-0AA0
BrandSiemens
HK$3,502.20
單位
Sentron 3VA 3 32A 36 kA 690V 500V - 76.2mm 130mm 88mm Instantaneous MCCB 4.2mm
全新
RS庫存編號 210-1660
製造零件編號3VA1140-5EF46-0AA0
BrandSiemens
HK$4,973.98
單位
SENTRON 3VA1 4 40A - - - - - - - - - -
RS庫存編號 874-4281
製造零件編號3VA1163-3EF36-0AA0
BrandSiemens
HK$2,204.38
單位
Sentron 3VA 3 63A 25 kA 690V 500V - 76.2mm 130mm 88mm Instantaneous MCCB 4.2mm
全新
RS庫存編號 209-6883
製造零件編號3VA1325-6MH32-0AA0
BrandSiemens
HK$12,032.09
單位
SENTRON 3VA1 3 250A - - - - - - - - - -
全新
RS庫存編號 211-3757
製造零件編號3VA2025-5HL42-0AA0
BrandSiemens
HK$7,563.03
單位
SENTRON 3VA2 4 25A - - - Fixed - - - - - -
全新
RS庫存編號 209-7054
製造零件編號3VA2040-6HN42-0AA0
BrandSiemens
HK$9,507.50
單位
Sentron 3VA2 4 40A - - - - - - - - - -
全新
RS庫存編號 209-4864
製造零件編號3VA1110-5EF42-0AA0
BrandSiemens
HK$5,223.93
單位
Sentron 3VA 4 100A - - - Fixed - - - - - -
全新
RS庫存編號 209-5122
製造零件編號3VA2110-5JQ32-0AA0
BrandSiemens
HK$14,072.21
單位
Sentron 3VA 3 100A - - - Fixed - - - - - -
全新
RS庫存編號 210-1624
製造零件編號3VA1116-3ED32-0AA0
BrandSiemens
HK$6,177.19
單位
SENTRON 3VA1 3 160A - - - - - - - - - -
全新
RS庫存編號 210-1693
製造零件編號3VA1225-5EF42-0AA0
BrandSiemens
HK$13,750.96
單位
SENTRON 3VA1 4 250A - - - - - - - - - -
全新
RS庫存編號 211-3814
製造零件編號3VA2563-6HL32-0AA0
BrandSiemens
HK$25,783.06
單位
SENTRON 3VA2 3 630A - - - Fixed - - - - - -
全新
RS庫存編號 209-5204
製造零件編號3VA2325-6HN32-0AA0
BrandSiemens
HK$18,121.77
單位
Sentron 3VA 3 250A - - - Fixed - - - - - -