supply of contactor (with diode) for ventilation fcontactor (with diode) for ventilation f,contactor (with diode) for ventilation fan unit 1 and 2 condenser, cd1.1, cd 1.2, cd 2.1, cd 2.2, heater 1 &2. rated current 16 a (at rated voltage & ac-3 utilization category), rated voltage 690 v ac, main pole 3 no, auxiliary contact 1 nc, control voltage 77-143 v dc with surge suppressor a s rdso specification no. rdso/pe/ spec/ ac/ 0184-2015 (rev-1). [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ] => limited