What Is a Pyro Fuse?

Pyro-fuses are one type of isolation device that is used to quickly disconnect a vehicle's batteries from the vehicle's electrical system.

How does a pyro fuse work?

Last month, industry supplier Bosch revealed details on what it calls the pyrofuse, a new safety tool for electric cars. When the system detects a crash, its uses a bit of combustion to fire small wedges into the high-voltage cables, severing the connections between the battery and the power electronics.

What is a pyro switch?

Pyrotechnic Safety Switches (PSS) disconnect the circuit safely and reliable, triggered by the airbag control device or BMS and before a short-circuit can occur in the circuit as a result of vehicle deformation.