1. Hand & Electrical Reset Tripping Relay c/w 6contacts, 4NO+2NC, 30VDC, TR241, E2 case2. Restricted Earth Fault Relay, DCD421B (7SG114-0FA11-0DA0) 4P overcurrent & sensitive e/f or REF.3. Solkor RF Pilot Wire Protection Relay c/w 2contact, 2NO, 1A, E6 case
2. Restricted Earth Fault Relay, DCD421B (7SG114-0FA11-0DA0) 4P overcurrent & sensitive e/f or REF.
3. Solkor RF Pilot Wire Protection Relay c/w 2contact, 2NO, 1A, E6 case
4. Over Current Earth Fault Relay, Reyroll ( Type DCD 412 ) - 30VDC
或者告诉我什么地方可以下来学习下。