output contactor (medha item code sp 504141023) & (siemens make output contactor 3 rt 1076-6 la 06-8 k) for 2x 500 kva igbt based hotel load converter for three phase locomotives (wap-7) mcn 504 v 2 as per clw spec. no: clw/es/3/igbt/0490 alt.d or latest.