How to Set a Circuit Breaker
- 1). Disconnect your home's power supply. You cannot have live electricity flowing while you set a new circuit breaker. In most cases, you will do this by turning off your main breaker. If your home has subsidiary breaker panels, they may become inactive when you disconnect the main switch, though you should use a voltage meter to make sure there is no power flowing.
- 2). Remove the cover from your breaker panel to allow unimpeded access to the electrical wiring.
- 3). Install a cable clamp to ensure all wiring stays in its proper place. Tighten the clamp with a cordless drill or manual screwdriver, but don't fasten it too tightly.
- 4). Insert the ground wire and connect it to the bus bar. This may require you to bend the ground wire so it fits around any existing wiring in the panel. Make sure the ground wire is firmly screwed into place.
- 5). Connect the white neutral wire for your new circuit to the connection terminal. The bare end of the wire should be connected; you may have to remove some of the wire's casing to access a bare end.
- 6). Connect the hot wire to the last remaining spot on the breaker's connection terminal. Ensure all wires are firmly seated before turning your home's power supply back on and testing your new circuit breaker.
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