It requires two inputs before the output turns on.
Never work on a circuit while the power supply is on.
a neutral safety switch only allows the car to start when the gearshift is in park or neutral. It is normally located on the top of the transmission. the switch closes the circuit so power can be sent to the starter circuit.
It is a safety device. It is not an essential part of the circuit.
If your reference to a safety device is a fuse, then if there is a short circuit, the circuit will be de energized by the opening of the fuse.
A safety device that uses an electromagnet to shut off the circuit is called a contactor.
for made of electric circuit safety device,
A spark from a short circuit can cause a fire .
The load that is connected in a circuit is what does the work in the circuit.
The gas valve is an electrically powered device that is wired at the end of a series circuit so that it can only be energized (open) if all of the safety switches upstream in the circuit are closed and the pilot flame is lit on a standing pilot furnace.
the connection in a series circuit would be a most it can be given in safety places
This is a safety precaution so that you don't inadvertently become the ground if you touch a hot circuit.
A fuse or circuit breaker will fit this description.