Electromechanical Relay 3V to 500VAC DPDT 45x113x90mm DIN Rail Electronic Monitoring Relay
电压不对称，相损，相序 110 ~ 500VAC
得捷:
MON RELAY 3PHASE 2X2PDT 500VAC
贸泽:
Controllers EMD-FL-3V-500
艾睿:
Electromechanical Relay 3V to 500VAC DPDT 45x113x90mm DIN Rail Electronic Monitoring Relay
Allied Electronics:
Phase, Voltage Monitoring Relay with DPDT Contacts, 3 Phase, 110 to 500 V ac
Electro Sonic:
Monitoring relay for monitoring 3-phase voltages of 350...650 V AC - undervoltage - window - phase sequence - phase failure ...