FEEDERS- 1 & 2 and BUS COUPLER, POWER CONTACTORS, 3POLE, 1000V AC, 50Hz, SUITABLE FOR 500 KVA, 750V AC ONLOAD SWITCHING UNDER AC- 6a CATEGORY AT TEMPERATURE OF 70 degree C & COIL VOLTAGE OF 110V DC + 25 %- 30 % WITH SURGESUPPRESSOR, 2NO + 2NC, AS PER RDSO Spec no. RDSO/ PE/ SPEC/ D/ TL/ 0195- 2019 ( Rev.- 0 ) SUITABLE FOR SWITCH BOARD CABINET FOR HOG COMPLIANT LSLRD COACHES. MAKE- RDSO APPROVE MAKE ONLY OR LATEST.