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 Overall Depth Overall Dimensions
RS Stock No. 922-8601
Mfr. Part No.235392 & PFIM-25/2/03-MW
BrandEaton
PHP5,667.73
Each
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- 25A - 300mA 230 → 400V - DIN Rail PFIM Instantaneous PFIM - RCCB 80mm 35 x 65.5 x 80mm
RS Stock No. 922-8664
Mfr. Part No.235439 & PFIM-40/4/003-A-MW
BrandEaton
PHP9,611.86
Each
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- 40A - 30mA 230 → 400V - DIN Rail PFIM Instantaneous PFIM - RCCB 80mm 70 x 65.5 x 80mm
RS Stock No. 667-0605
Mfr. Part No.235390 & PFIM-25/2/003-MW
BrandEaton
PHP6,092.44
Each
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- - - - - - - - - - - - - -
RS Stock No. 734-9548
Mfr. Part No.A9N21480
PHP11,424.31
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RS Stock No. 922-8632
Mfr. Part No.235416 & PFIM-63/4/03-MW
BrandEaton
PHP9,809.48
Each
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- 63A - 300mA 230 → 400V - DIN Rail PFIM Instantaneous PFIM - RCCB 80mm 70 x 65.5 x 80mm
RS Stock No. 812-9553
PHP2,583.24
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- - - - - - - - - - - - - -
RS Stock No. 812-9569
PHP3,452.28
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RS Stock No. 776-3720
Mfr. Part No.A9R35480
PHP32,362.07
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- - - - - - - - - - - - - -
RS Stock No. 922-8718
Mfr. Part No.236072 & PKNM-10/1N/B/003-A-MW
BrandEaton
PHP5,347.85
Each
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- 10A - 30mA 230V - DIN Rail PKNM Instantaneous PKNM - - 80mm 35 x 65.5 x 80mm
RS Stock No. 667-0624
Mfr. Part No.235410 & PFIM-40/4/003-MW
BrandEaton
PHP8,386.75
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- - - - - - - - - - - - - -
RS Stock No. 863-7754
Mfr. Part No.4 115 00
BrandLegrand
PHP6,079.21
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- 16A - 10mA 230V - DIN Rail - - 4115 - - - -
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Mfr. Part No.A9R75425
PHP4,211.05
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Mfr. Part No.A9D55620
PHP11,495.17
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RS Stock No. 776-2878
Mfr. Part No.A9Q01225
PHP14,261.10
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- - - - - - - - - - - - - -
RS Stock No. 922-8667
Mfr. Part No.235435 & PFIM-25/4/003-A-MW
BrandEaton
PHP8,263.14
Each
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- 25A - 30mA 230 → 400V - DIN Rail PFIM Instantaneous PFIM - RCCB 80mm 70 x 65.5 x 80mm
RS Stock No. 178-241
Mfr. Part No.2CCF544110E0400 - F404A-40/0.03, 2CC
BrandABB
PHP9,316.64
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4 40 A - 30mA 400 V - - SmiSSline Instantaneous F404 - - - -
RS Stock No. 776-2897
Mfr. Part No.A9V35263
PHP29,662.28
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RS Stock No. 124-7727
Mfr. Part No.5SV3312-6
BrandSiemens
PHP4,164.30
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- 25A 5SV33126 30mA 230V - DIN Rail Sentron Instantaneous 5SV3 - RCCB 89.8mm 35.8 x 77.2 x 89.8mm
RS Stock No. 922-8730
Mfr. Part No.236239 & PKNM-20/1N/B/003-A-MW
BrandEaton
PHP7,197.87
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- 20A - 30mA 230V - DIN Rail PKNM Instantaneous PKNM - - 80mm 35 x 65.5 x 80mm
RS Stock No. 922-8733
Mfr. Part No.236245 & PKNM-20/1N/C/003-MW
BrandEaton
PHP7,168.74
Each
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- 20A - 30mA 230V - DIN Rail PKNM Instantaneous PKNM - - 80mm 35 x 65.5 x 80mm