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.

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Description Price Number of Poles Current Rating Model Number Trip Sensitivity Rated AC Voltage Rated DC Voltage Mounting Style Range Break Time Series Application Breaking Capacity Breaking Capacity at Maximum Voltage Rating Circuit Breaker Type
RS庫存編號 124-7741
製造零件編號5SV3644-6
BrandSiemens
TWD3,669.00
單位
- 40A - 300mA 400V - DIN Rail Sentron Instantaneous 5SV3 - - - RCCB
RS庫存編號 511-9121
製造零件編號ELRM44V-30 115/230VAC
TWD5,937.00
單位
- - - - - - - - - - - - - -
RS庫存編號 124-7742
製造零件編號5SV3644-6KK12
BrandSiemens
TWD4,769.00
單位
- 40A - 300mA 400V - DIN Rail Sentron Instantaneous 5SV3 - - - RCCB
RS庫存編號 124-7721
製造零件編號5SV3344-6
BrandSiemens
TWD2,951.00
單位
- 40A 5SV33446 30mA 400V - DIN Rail Sentron Instantaneous 5SV3 - - - RCCB
RS庫存編號 922-8698
製造零件編號236017 & PKNM-6/1N/C/003-MW
BrandEaton
TWD3,390.00
單位
- 6A - 30mA 230V - DIN Rail PKNM Instantaneous PKNM - - - -
RS庫存編號 922-8617
製造零件編號235398 & PFIM-63/2/003-MW
BrandEaton
TWD4,438.00
單位
- 63A - 30mA 230 → 400V - DIN Rail PFIM Instantaneous PFIM - - - RCCB
RS庫存編號 490-466
製造零件編號236776 & PXF-40/4/003-A
BrandEaton
TWD1,558.00
單位
- - - - - - - - - - - - - -
RS庫存編號 124-7722
製造零件編號5SV3344-6KK01
BrandSiemens
TWD9,779.00
單位
- 40A - 30mA 400V - DIN Rail Sentron Time Delay 5SV3 - - - RCCB
RS庫存編號 179-9692
製造零件編號A9N18569
TWD6,889.00
單位
- - - - - - - - - - - - - -
RS庫存編號 776-2859
製造零件編號A9N18554
TWD34,338.00
單位
- - - - - - - - - - - - - -
RS庫存編號 790-9462
製造零件編號A9D60625
TWD7,894.00
單位
- - - - - - - - - - - - - -
RS庫存編號 432-2354
製造零件編號12243
TWD3,856.00
單位
- - - - - - - - - - - - - -
RS庫存編號 776-3694
製造零件編號A9R12263
TWD10,732.00
單位
- - - - - - - - - - - - - -
RS庫存編號 188-1684
製造零件編號P1RC4P40B030
BrandLovato
TWD27,637.00
單位
- - - - - - DIN Rail - - - - - - -
RS庫存編號 732-0039
製造零件編號4 115 24
BrandLegrand
TWD5,671.00
單位
2 25 A - 300mA 230 V - - - - DX3 - - - -
RS庫存編號 922-8620
製造零件編號235413 & PFIM-40/4/05-MW
BrandEaton
TWD4,587.00
單位
- 40A - 500mA 230 → 400V - DIN Rail PFIM Instantaneous PFIM - - - RCCB
RS庫存編號 124-7731
製造零件編號5SV3342-6
BrandSiemens
TWD3,669.00
單位
- 25A - 30mA 400V - DIN Rail Sentron Instantaneous 5SV3 - - - RCCB
RS庫存編號 176-807
製造零件編號2CCL562111E0165 - FS401E-B16/0.03
BrandABB
TWD4,109.00
單位
2 16 A - 30mA 230 V - - SmiSSline - FS401 - - - -
RS庫存編號 922-8702
製造零件編號236067 & PKNM-10/1N/B/003-MW
BrandEaton
TWD3,390.00
單位
- 10A - 30mA 230V - DIN Rail PKNM Instantaneous PKNM - - - -
RS庫存編號 183-3653
製造零件編號452061
BrandABB
TWD18,667.00
單位
- 63A DDA204 30mA 400V - DIN Rail - - DDA200 - - - RCD