MODULE 21
The Relpol MODULE 21 is signalling / protecting modules type 21 for sockets GZP8, GZP11 and relays: R15 2P i R15 3 P.
The MODULE 21 is an accessory for the specific Relpol equipment identified above. Selection should be based on the stated compatible relay, socket or solid-state relay family so the part performs its intended mechanical, connection, identification or protection function.