160a rcd breakers are what

160A RCD (Residual Current Device) breakers are a type of electrical safety device that combines the functions of a circuit breaker and an earth leakage circuit breaker.

Here's what they do:

RCD breakers are designed to provide an additional layer of safety in electrical systems, particularly in areas where there is a risk of electrical shock or electrocution, such as:

In Australia, 160A RCD breakers are commonly used in residential and commercial electrical installations to provide an additional level of safety and protection against electrical shock and electrocution.