DIY Knowledge

Nullspannungsauslöser / Nullspannungsschalter

Interruptor de tensión nula

Disjoncteur à tension nulle

Prevents uncontrolled re-start of a machine after power failure. Obligatory feature for certain stationary appliances which are driven by an electric power tool, e.g. a circular saw bench, or some vacuum cleaners. (See also Restart cutout)