Voltage indicator UNNZP (12-380) VL ELEKTRO TREID ET-UNN110VL

UNNZP (12-380) VL voltage indicator is designed to monitor the presence of voltage on both overhead lines and in AC and DC electrical installations with a voltage of 12-380V and a frequency of 50Hz. The indicator provides stepped pulse light-and-sound indication of DC and AC voltages of 12, 50, 110, 220, 380V, allows determining the polarity of DC and the phase of AC voltages, and the integrity of electrical circuits with an external resistance from 0 to 100 kOhm (light-and-sound continuity test). Circuit integrity is determined using the energy of a storage capacitor. The capacitor is charged from a DC or AC network with a voltage of 220-380V for 1 minute. A single charge is sufficient for operation throughout the entire working day.