ABB Center Jumper 4 pole (discontinuted: 10 pole configuration 1SNA168973R0700)

Siemens Control Relay 3RH2131-1AK60 : 3 NO & 1 NC Contacts : For use on TC and BC relays : Replaces RCN311 and 3RH1131-1AK60 : Cross Reference HCI 12177