Voltage indicator Contact 57 S ELEKTRO TRADE ET-UNN141

Voltage indicator Contact 57 C is designed for step-by-step control and approximate determination of voltage magnitude in AC electrical installations with a frequency of 50Hz and DC voltage of 70-1000V, at air temperatures from +40°C to -45°C and relative humidity not more than 98% at +25°C. The indicator provides light and sound indication, allows determining DC polarity, AC phase, and electrical circuit integrity with external resistance (continuity test).