supply of gp relay,3 n.o+3 n.c, interlock contacts -48v dc, max pick-up 5-28v dc, drop-out-74v dc working voltage-10 a (for gbc, mcb, ar, wsr, bwr, rdrtst, agtrip, tlpr,dcr, efco, cmpsyn,tel).gp relay,3 n.o+3 n.c, interlock contacts -48v dc, max pick-up 5-28v dc, drop-out-74v dc working voltage-10 a (for gbc, mcb, ar, wsr, bwr, rdrtst, agtrip, tlpr,dcr, efco, cmpsyn,tel).,gp relay,3 n.o+3 n.c, interlock contacts -48v dc, max pick-up 5-28v dc, drop- out-74v dc working voltage-10 a (for gbc, mcb, ar, wsr, bwr, rdrtst, agtrip, tlpr,dcr, ef co, cmpsyn,tel). specification: blw pt no 18180012, blw drg no 8357415, alt - ka and blw specifi cation no. wdg4/el/ps/06, rev-01. [ warranty period: 30 months after the date of delivery ] ]