123-9717, Tele, Tele Phase, Voltage Monitoring Relay, 1, 3 Phase, SPDT, Maximum of 400 V, DIN Rail, Brand Tele, Monitoring Application Phase, Voltage, Electrical Phase 1, 3 Tele Phase, Voltage Monitoring Relay, 1, 3 Phase, SPDT, Maximum of 400 V, DIN Rail