The interlock consists of one or more switches that prevent both main power and generator power from powering the dwelling simultaneously. ... Most interlock devices for electrical systems employ a mechanical device to manage the movement of circuit breakers.

What is a interlocking system?

Ignition Interlock Devices. ... In simplest terms, an interlock device is an in-car breathalyzer that prevents a user from starting a vehicle until a breath alcohol test is taken. An ignition interlock device is a proper term for devices sometimes referred to as “in-car breathalyzer” or “car interlock” or “blow and go”.

What is interlocking in circuit breaker?

The function of the racking mechanism interlock is to prevent the breaker from moving from the connection position before the breaker is in the open position. ... Racking interlocks prevent a circuit breaker from being connected to energized bus in the closed position.