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Is an RCD the same as a safety switch?

Is an RCD the same as a safety switch?

An RCD is also called a residual current device, and they have the same characteristics as a safety switch. Therefore, the terms RCD and safety switch can be used interchangeably.

Do I need a safety switch with circuit breaker?

The main difference between a safety switch (or RCD) and a circuit breaker (often referred to as a fuse) is a safety switch protects people from electrical accidents and the circuit breaker protects wiring and electrical systems in your home.

Are RCDs mandatory in NZ?

In new domestic/residential installations, all final subcircuits must be protected by a 30mA RCD installed at the switchboard where the final subcircuit originates, including hardwired appliances such as air conditioning, ovens and hot water systems.

What causes an RCD to trip out?

An RCD can react if there is a sudden rise in electrical current use or leakage current, due to the contents of your refrigerator or freezer thawing out. Occasionally, a poorly connected appliance can cause a spike in electricity supply. If this happens, the RCD will trip and reset as it is designed to do.

How many safety switches do I need?

How many safety switches do I need? It is recommended to have a safety switch for every circuit that you have in your home. This would typically be one for lighting, one for power points, one for hardwire appliances such as dishwashers and ovens.

When did RCDs become mandatory in NZ?

From January 2003, all new circuits originating at the switchboard supplying lighting or socket outlets (power points) in domestic buildings must have RCD protection.

How does a safe T switch work?

Safe T Switch detects clogged A/C condensate drains and shuts off the system to prevent water damage to floors, walls and ceilings. AC float switches can be installed in the drain line of the air conditioner, and if water begins to accumulate in the drain line a small ball valve inside the switch will begin to float.

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