How to install a pin-in standard, pin-out standard, or pin-out wide miniature circuit breaker (MCB)?
First, locate the hole at the center of the circuit breaker casing. Next, take either a pin-in standard, pin-out standard, or pin-out wide circuit breaker lockout that appropriately fits your circuit breaker. Make sure to keep the circuit breaker in the OFF position. Then, push the circuit breaker lockout device button to loosen the pins. Align the pins to the holes and then release the button to lock it in place. Lastly, place a lockout padlock to the hole to complete the process.