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 Breaking Capacity at Maximum Voltage Rating Circuit Breaker Type Earth Leakage Protection Type Overall Depth
RS庫存編號 124-7741
製造零件編號5SV3644-6
BrandSiemens
TWD3,854.00
單位
- 40A - 300mA 400V - DIN Rail Sentron Instantaneous 5SV3 - RCCB - 89.8mm
RS庫存編號 511-9121
製造零件編號ELRM44V-30 115/230VAC
TWD5,980.00
單位
- 8A - 30 → 30000mA 230V - DIN Rail - - ELRM - - - -
RS庫存編號 124-7742
製造零件編號5SV3644-6KK12
BrandSiemens
TWD4,813.00
單位
- 40A - 300mA 400V - DIN Rail Sentron Instantaneous 5SV3 - RCCB - 89.8mm
RS庫存編號 776-2887
製造零件編號A9V01263
TWD17,531.00
單位
- 63A - 30mA 130V - DIN Rail Mount Acti 9 Instantaneous iC60 - - - -
RS庫存編號 776-2916
製造零件編號A9Q31425
TWD14,660.00
單位
- 25A - 30mA 400 V, 415V - DIN Rail Mount Acti 9 Instantaneous iC60 - - - -
全新
RS庫存編號 225-6084
製造零件編號2CSB204101R4400
BrandABB
TWD4,521.00
單位
4 40A DDA204 A-40/0.5 500mA 400V - DIN Rail - - DDA200 - - - -
RS庫存編號 610-3802
製造零件編號2CSB202101R3250 - DDA202A-25/0.3
BrandABB
TWD3,173.00
單位
1+N 25A - 300mA 415V - DIN Rail Pro M compact - DDA 200 A - - - -
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RS庫存編號 218-1795
製造零件編號3VA9114-0RL21
BrandSiemens
TWD65,093.00
單位
4 160A 3VA11 - 690V 127V - SENTRON - 3VA11 - - - -
RS庫存編號 776-2890
製造零件編號A9V04263
TWD11,782.00
單位
- 63A - 300mA 130V - DIN Rail Mount Acti 9 Instantaneous iC60 - - - -
RS庫存編號 776-2922
製造零件編號A9V35463
TWD21,521.00
單位
- 63A - 300mA 400 V, 415V - DIN Rail Mount Acti 9 Time Delay iC60 - - - -
RS庫存編號 776-2893
製造零件編號A9V39263
TWD17,060.00
單位
- 63A - - 230 V, 400 V, 415V - DIN Rail Mount Acti 9 Time Delay iC60 - - - -
RS庫存編號 922-8727
製造零件編號236212 & PKNM-16/1N/C/003-MW
BrandEaton
TWD3,802.00
單位
- 16A - 30mA 230V - DIN Rail PKNM Instantaneous PKNM - - - 80mm
RS庫存編號 776-2897
製造零件編號A9V35263
TWD20,440.00
單位
- 63A - 300mA 230 V, 400 V, 415V - DIN Rail Mount Acti 9 Time Delay iC60 - - - -
RS庫存編號 863-7760
製造零件編號4 117 04
BrandLegrand
TWD3,890.00
單位
3+N 63A - 30mA 400V - DIN Rail - - 4117 - - - -
RS庫存編號 790-9462
製造零件編號A9D60625
TWD8,862.00
單位
- 25A - 100mA 230V - DIN Rail Acti 9 - iDPN - - - -
全新
RS庫存編號 225-6073
製造零件編號2CSB202101R1250
BrandABB
TWD3,617.00
單位
2 25A DDA202 A-25/0.03 30mA 400V - DIN Rail - - DDA200 - - - -
RS庫存編號 731-9890
製造零件編號4 107 86
BrandLegrand
TWD11,283.00
單位
1+N 20A - 30mA - - - - - DX3 - - - -
RS庫存編號 178-106
製造零件編號2CCL562111E0164 - FS401E-C16/0.03
BrandABB
TWD4,261.00
單位
1+N 16A - 30mA 230V - - SmiSSline - FS401 - - - -
RS庫存編號 610-3868
製造零件編號2CSB203101R1250 - DDA203A-25/0.03
BrandABB
TWD3,230.00
單位
3 25A - 30mA 415V - DIN Rail Pro M compact - DDA 200 A - - - -
全新
RS庫存編號 225-6079
製造零件編號2CSB203101R4250
BrandABB
TWD4,024.00
單位
3 25A DDA203 A-25/0.5 500mA 400V - DIN Rail - - DDA200 - - - -