The CAR- Transient Emission 14 is used to check the transient transition behaviour when switching loads on the vehicle electrical system. It consists of two triggerable circuit breakers (electronically or mechanically), an artificial network, a control unit for operating the device, and optionally an external power supply. The CAR-Transient Emission 14 can perform the "Transient Emission Test" for "slow pulses" and "fast pulses" according to ISO 7637-2.