A main switch (or isolator) is designed purely to switch power on and off manually—it does not provide overcurrent protection. A circuit breaker automatically trips during overload or fault conditions to protect circuits. Main switches are used for isolation during maintenance and servicing, allowing electricians to safely de-energise circuits.
A circuit breaker automatically trips during overload or fault conditions to protect circuits. Main switches are used for isolation during maintenance and servicing, allowing electricians to safely de-energise circuits. Circuit breakers protect against electrical faults but aren''t designed for frequent switching operations.
Main switches are electrical isolator devices that disconnect entire installations or circuits from power supply. Available in 80A-100A ratings with single-pole, double-pole, or three-pole configurations, they enable safe maintenance isolation, emergency disconnection, and comply with AS/NZS 3000:2018 Australian standards.
Hager SBR190 100 Amp single pole circuit breaker style main switch. This product meets all relevant Australian standards. 2 Years warranty. All... Hager SBR364 3 pole 63 amp main switch. Din rail mounted circuit breaker style. This product meets all relevant Australian standards. 2 Years... ABB E203100RD 3 Pole 100 amp main switch.
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