2 changeover contacts, potential-free 10A/250V AC. 230V LED lamps up to 200W, incandescent lamps 2000W. Standby loss only 0.8 watts. Modular device for mounting on DIN-EN 60715 TH35 rail. 2 division units = 36mm wide, 58mm deep. For monitoring 230V AC voltage between 1 to 3 external conductors and the neutral conductor and for monitoring the rotating field (clockwise) in the rotary switch positions 2 Ph and 3 Ph. In the L1/L2/L3 position, only the rotating field is monitored, regardless of the mains voltage. Supply voltage L1-N 180-250V/50Hz. If L1 fails, the relay drops out immediately without a release delay. Two pull-in or release voltages can be set using the lower rotary switch on the front and the number of monitored external conductors must be specified. U1: 161V release voltage and 185V pull-in voltage, U2: 196V release voltage and 206V pull-in voltage in accordance with VDE 0100, Part 718 (formerly: VDE 0108, Part 1). LED display for correct voltage. If the polarity is incorrect or an outer conductor is missing, the LED flashes quickly. Release delay RV can be set from 0.1 to 8 seconds using the upper rotary switch. While the RV time is running, the LED flashes slowly. Pull-in delay 0.5s. Maximum device protection 16A.