Preventing uncontrolled restarts under conditions of intense voltage drops or with temporary losses of voltages, the UP1 2-pole appliance switch from Schurter comes with a built-in undervoltage trip release. It monitors the supply voltage and actuates a trip release when there is an intense drop in voltage or when the supply voltage is interrupted. As soon as the supply voltage returns in full, the machine or equipment does not automatically restart in an uncontrolled manner, but must be consciously switched on again. Using this function, dangerous situations for operating personnel as well as for the surroundings of the device itself can be prevented. The breaker is available with rocker actuation for snap-in mounting or with push-button actuation for both snap-in mounting as well as screw fitting. Protection covers against the ingress of dust and spray water to IP 65 make the use of the breaker in harsh environments such as wood-, masonry- or metal-workings possible. The UP1 undervoltage circuit breaker is configured differently in its hardware for various network supply voltages and must be therefore ordered for the appropriate supply voltage. Rated AC switching category is 1 to 16 A or 3 to 14.5 A at 240 V. The breakers are approved to IEC 60947, UL 508, CSA 22.2 No.14-95 and also contain a horsepower rating.
Edited by: Teoman Tugsuz
