POWER CONTACTOR 110 AMP. 4 POLE 415 V AC COIL VOLTAGE 380- 415 V AC 50 HZ WITH 2 NC AUX CONTACT ALONG WITH SURGE SUPPRESOR AS PER S. NO. 59 & ITEM NO. K- 08, PLACE OF INSTALLATION S1K43 OF BILL OF MATERIAL OF RDSO SPEC NO. RDSO/ PE/ SPEC/ AC/ 0184- 2015, REV. 0, USED FOR MAIN CONTACTOR FOR LOCAL MAIN SUPPLY OF LHB TYPE AC COACHES, CONFIRMING TO RDSO SPEC. NO. RDSO/ PE/ SPEC/ AC/ 0184- 2015, REV. 0 SUITABLE FOR LHB TYPE AC COACHES SWITCH BOARD CABINET., S1K- 43 specn: RDSO SPEC NO. RDSO/ PE/ SPEC/ AC/ 0184- 2015