RCDs

An RCD (residual current device), has been designed to protect you from fatal electric shocks as it automatically switches off electricity when there is a fault. This potentially life-saving device protects against electrocution in instances where there is a bare wire, over-heating or earth faults.

RCDs are also known as an RCCB (residual-current circuit breaker) in the UK but in the United States and Canada they are referred to as a GFCI (ground fault circuit interrupter).
If RCDs are regularly tested, they are reliable life-saving devices, reducing the risk of electric shock and protecting your home against electrical fires.

How does an RCD work?
An RCD is placed within the circuits it has to protect. By monitoring the electric current, it can quickly detect when a circuit fails and electricity is flowing incorrectly. When the fault is detected, the RCD switches off the circuit so that the person handling the wires comes to no harm.
RCDs are often integrated with a fuse or MCB (miniature circuit breaker) adding protection when there are excessive current causing spikes or surges in the circuit.

Types of RCD
  • Fixed RCDs: they are installed in a fuse box and are used for both industrial and domestic applications. They protect lots of circuits and provide an excellent level of protection. RCDs located within a consumer power distribution unit are mostly passive. This allows household appliances to re-establish normal operation when the circuit power is restored.
  • Socket-Outlet RCDs: they provide individual protection to the person who is in contact with the equipment. They can be used in place of a standard socket outlet. Socket-outlet RCDs are either active or passive. They are latching in operation so are not ideal for power tools which do not require a restart when the circuit is restored.
  • Portable RCDs: they also only provide individual protection to the person who is in contact with the equipment. They plug into any standard socket, and the appliance is then plugged into the RCD. Portable RCDs are mostly active and unlatch when any abnormality is detected. People who use outside power tools would benefit from a portable RCD as their equipment could become dangerous if they were suddenly reactivated.

...
顯示內容 隱藏內容

篩選條件

正在檢視 41 - 60,共 391 項產品
Results per page
Description Price Number of Poles Current Rating Model Number Trip Sensitivity Rated AC Voltage Rated DC Voltage Mounting Style Range Break Time Series Breaking Capacity at Maximum Voltage Rating Circuit Breaker Type Earth Leakage Protection Type Overall Depth
RS庫存編號 124-7723
製造零件編號5SV3344-6KK12
BrandSiemens
HK$1,296.98
單位
- 40A - 30mA 400V - DIN Rail Sentron Instantaneous 5SV3 - RCCB - 89.8mm
RS庫存編號 209-1353
製造零件編號A9Y81625
HK$1,506.15
單位
1P+N 25A Acti9iC40 300mA 400V 125V DIN Rail Acti 9 Instantaneous Vigi iC40 - - - -
RS庫存編號 922-8673
製造零件編號235440 & PFIM-40/4/01-A-MW
BrandEaton
HK$1,410.29
單位
- 40A - 100mA 230 → 400V - DIN Rail PFIM Instantaneous PFIM - RCD - 80mm
RS庫存編號 922-8651
製造零件編號235426 & PFIM-25/2/03-A-MW
BrandEaton
HK$1,020.56
單位
- 25A - 300mA 230 → 400V - DIN Rail PFIM Instantaneous PFIM - RCD - 80mm
RS庫存編號 191-6076
製造零件編號A9DA6616
HK$2,183.37
單位
1+N 16A Acti9iDD40T 300mA 230V - DIN Rail Acti9 Instantaneous - - - Type AC 85mm
全新
RS庫存編號 210-9286
製造零件編號3VA9113-0RS20
BrandSiemens
HK$10,850.37
單位
3 160A - - 127 → 480V - Screw Mount SENTRON Time Delayed 3VA911 - - - -
全新
RS庫存編號 218-1798
製造零件編號3VA9123-0RL30
BrandSiemens
HK$12,461.81
單位
3 160A 3VA21 - 690V 100V - SENTRON - 3VA21 - - - -
RS庫存編號 179-9673
製造零件編號A9V69340
HK$270.20
單位
3 40A - 100mA 400V - DIN Rail Mount Acti 9 Instantaneous Vigi iC65 ELE - RCD - 73.5mm
RS庫存編號 922-8660
製造零件編號235437 & PFIM-25/4/03-A-MW
BrandEaton
HK$1,322.50
單位
- 25A - 300mA 230 → 400V - DIN Rail PFIM Instantaneous PFIM - RCD - 80mm
RS庫存編號 922-8730
製造零件編號236239 & PKNM-20/1N/B/003-A-MW
BrandEaton
HK$1,123.97
單位
- 20A - 30mA 230V - DIN Rail PKNM Instantaneous PKNM - - - 80mm
RS庫存編號 731-9859
製造零件編號4 107 14
BrandLegrand
HK$2,234.53
單位
1+N 20A - 30mA - - - - - DX3 - - - -
RS庫存編號 732-0086
製造零件編號4 116 65
BrandLegrand
HK$2,105.62
單位
3+N 40A - 300mA 400V - - - - DX3 - - - -
RS庫存編號 776-2922
製造零件編號A9V35463
HK$5,045.93
單位
- 63A - 300mA 400 V, 415V - DIN Rail Mount Acti 9 Time Delay iC60 - - - -
RS庫存編號 731-9893
製造零件編號4 108 02
BrandLegrand
HK$2,077.05
單位
1+N 20A - 30mA 230V - - - - DX3 - - - -
RS庫存編號 776-2900
製造零件編號A9Q31325
HK$3,709.46
單位
- 25A - 30mA 400 V, 415V - DIN Rail Mount Acti 9 Instantaneous iC60 - - - -
RS庫存編號 191-6150
製造零件編號A9Y63625
HK$1,923.87
單位
1+N 25A Acti9iDT40 300mA 230V - DIN Rail Mount Acti9 Instantaneous - - - Type AC 91mm
RS庫存編號 776-2884
製造零件編號A9V11263
HK$4,570.67
單位
- 63A - 30mA 230 V, 400 V, 415V - DIN Rail Mount Acti 9 Instantaneous iC60 - - - -
RS庫存編號 191-6143
製造零件編號A9Y62325
HK$2,396.45
單位
3 25A Acti9iDT40 30mA 400V - DIN Rail Acti9 Instantaneous - - - Type AC 99.5mm
RS庫存編號 191-6144
製造零件編號A9Y62340
HK$3,212.33
單位
3 40A Acti9iDT40 30mA 400V - DIN Rail Acti9 Instantaneous - - - Type AC 99.5mm
全新
RS庫存編號 219-9026
製造零件編號A9N26947
HK$1,129.51
單位
- - - - 48V 48V Fixed Acti 9 - - - - - -