Relpol connection bridges for gzmgzt relay sockets relpol zggz4 1 this connection comb is designed to ease wiring congestion where relays are mounted together by commoning a2 neutral terminals the castellated design allows access to the a1 terminal when the comb is fitted combs are easily cut and can be butted together relpol zggz4 1 6 way connection bridge 10a for gzm amp gzt 2 3 amp 4 pole sockets