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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Osan tiedot Merkki Stock Number of Poles Model Number Current Rating Trip Sensitivity Rated AC Voltage Mounting Style Range Break Time Series Overall Length Application Overall Dimensions Overall Width Overall Depth Special Features Tripping Characteristics Breaking Capacity Circuit Breaker Type Standards Met
ABB FH200 2P 25 A Instantaneous RCD Switch, Trip Sensitivity 30mA, DIN Rail Mount Mounted
  • RS-tuotekoodi 186-3455
  • Merkki ABB
  • Valmistajan tuotenumero 443041
ABB 0 2P FH202 AC-25/0,03 25 A 30mA - DIN Rail Mount - Instantaneous FH200 69mm Both Residential and Commercial, Buildings - 35mm 85mm - Type AC - RCD -
ABB FH200 2P 40 A Instantaneous RCD Switch, Trip Sensitivity 30mA, DIN Rail Mount Mounted
  • RS-tuotekoodi 186-3456
  • Merkki ABB
  • Valmistajan tuotenumero 443051
ABB 0 2P FH202 AC-40/0,03 40 A 30mA - DIN Rail Mount - Instantaneous FH200 69mm Both Residential and Commercial, Buildings - 35mm 85mm - Type AC - RCD -
ABB FH200 2P 40 A Instantaneous RCD Switch, Trip Sensitivity 30mA, DIN Rail Mount Mounted
  • RS-tuotekoodi 186-3459
  • Merkki ABB
  • Valmistajan tuotenumero 443151
ABB 0 2P FH202 A-40/0,03 40 A 30mA - DIN Rail Mount - Instantaneous FH200 69mm Both Residential and Commercial, Buildings - 35mm 85mm - Type A - RCD -
ABB FH200 2P 40 A Instantaneous RCD Switch, Trip Sensitivity 30mA, DIN Rail Mount Mounted
  • RS-tuotekoodi 186-3466
  • Merkki ABB
  • Valmistajan tuotenumero 444151
ABB 0 2P FH202 S A-40/0,03 40 A 30mA - DIN Rail Mount - Instantaneous FH200 69mm Domestic - 35mm 85mm - Type A - RCD -
ABB FH200 2P 63 A Instantaneous RCD Switch, Trip Sensitivity 30mA, DIN Rail Mount Mounted
  • RS-tuotekoodi 186-3457
  • Merkki ABB
  • Valmistajan tuotenumero 443061
ABB 0 2P FH202 AC-63/0,03 63 A 30mA - DIN Rail Mount - Instantaneous FH200 69mm Both Residential and Commercial, Buildings - 35mm 85mm - Type AC - RCD -
ABB FH200 2P 63 A Instantaneous RCD Switch, Trip Sensitivity 30mA, DIN Rail Mount Mounted
  • RS-tuotekoodi 186-3460
  • Merkki ABB
  • Valmistajan tuotenumero 443161
ABB 0 2P FH202 A-63/0,03 63 A 30mA - DIN Rail Mount - Instantaneous FH200 69mm Both Residential and Commercial, Buildings - 35mm 85mm - Type A - RCD -
ABB FH200 2P 63 A Instantaneous RCD Switch, Trip Sensitivity 30mA, DIN Rail Mount Mounted
  • RS-tuotekoodi 186-3465
  • Merkki ABB
  • Valmistajan tuotenumero 444061
ABB 0 2P FH202 S AC-63/0,03 63 A 30mA - DIN Rail Mount - Instantaneous FH200 69mm Domestic - 35mm 85mm - Type AC - RCD -
ABB FH200 2P 63 A Instantaneous RCD Switch, Trip Sensitivity 30mA, DIN Rail Mount Mounted
  • RS-tuotekoodi 186-3467
  • Merkki ABB
  • Valmistajan tuotenumero 444161
ABB 0 2P FH202 S A-63/0,03 63 A 30mA - DIN Rail Mount - Instantaneous FH200 69mm Domestic - 35mm 85mm - Type A - RCD -
Surge 40KA 1+1 Protection Retro Fit Kit Contactum 0 - - 40 kA - - - - - - - - - - - - - - - -
10 Way 100A Switch + SPD Contactum 0 - - 100 A - - - - - - - - - - - - - - - -
10 Way 80A RCD Inc CU Contactum 0 - - 80 A - - - - - - 294mm Domestic Household Premise - 130mm 260mm - - - - -
10 Way Flex H/In SL 100A Sw+2x80A RCD CU Contactum 0 - - 100 (Switch) A, 80 (RCD) A - - - - - - 366mm Domestic Household Premise - 130mm 260mm - - - - -
10 Way H/Int 100A Sw+2x63A RCD+SPD CU Contactum 0 - - - - - - - - - - - - - - - - - - -
100 (Switch) A, 40, 32, 16, 6 (MCB) A, 6 (RCBO) A, 80 (RCD) A, RCD Switch Contactum 0 - - 100 (Switch) A, 40, 32, 16, 6 (MCB) A, 6 (RCBO) A, 80 (RCD) A - - - - - - 438mm Domestic Household Premise - 130mm 260mm - - - - -
100 (Switch) A, 40, 32, 16, 6 (MCB) A, 63 (RCD) A, RCD Switch Contactum 0 - - 100 (Switch) A, 40, 32, 16, 6 (MCB) A, 63 (RCD) A - - - - - - 294mm Domestic Household Premise - 130mm 260mm - - - - -
100 (Switch) A, 40, 32, 16, 6 (MCB) A, 80 (RCD) A, RCD Switch Contactum 0 - - 100 (Switch) A, 40, 32, 16, 6 (MCB) A, 80 (RCD) A - - - - - - 366mm Domestic Household Premise - 130mm 260mm - - - - -
100 (Switch) A, 40, 32, 16, 6 (MCB) A, 80 (RCD) A, RCD Switch Contactum 0 - - 100 (Switch) A, 40, 32, 16, 6 (MCB) A, 80 (RCD) A - - - - - - 330mm Domestic Household Premise - 130mm 260mm - - - - -
100 (Switch) A, 40, 32, 16, 6 (MCB) A, 80 (RCD) A, RCD Switch Contactum 0 - - 100 (Switch) A, 40, 32, 16, 6 (MCB) A, 80 (RCD) A - - - - - - 402mm Domestic Household Premise - 130mm 260mm - - - - -
100 (Switch) A, 40, 32, 16, 6 (MCB) A, 80 (RCD) A, RCD Switch Contactum 0 - - 100 (Switch) A, 40, 32, 16, 6 (MCB) A, 80 (RCD) A - - - - - - 474mm Domestic Household Premise - 130mm 260mm - - - - -
100 (Switch) A, 80 (RCD) A, RCD Switch Contactum 0 - - 100 (Switch) A, 80 (RCD) A - - - - - - - - - - - - - - - -
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