supply of electrical items required for maintanance of different rli scheme within purulia-ii (a-m) sub-division under purulia (a-m) division under np/mtn programme 2022-23 , automatic star-delta motor controller for 25 hp/18.5 kilo-watt electro-motor surface water pump operating at 415 volt (+6% to -10%), 3 phase 50 hz (±3%) ac supply. the equipment shall comply with is-60947/2000(part-4, sec-1)and its latest amendments. starter shall comprise of 4 pole heavy duty magnetic power contactor with encapsulated wide band operating coil voltage range 190-440v, motor circuit protection (under voltage, single phasing, phase reversal , phase unbalance, overload protection) , star delta timer, 3 pole mcb, voltmeter (0-500v), ammeter (0-30/50a), indicating lamp (on, off & trip). , automatic star-delta motor controller for 20 hp/15 kilo-watt electro-motor surface water pump operating at 415 volt (+6% to -10%), 3 phase 50 hz (±3%) ac supply. the equipment shall comply with is-60947/2000(part-4, sec-1)and its latest amendments. starter shall comprise of 4 pole heavy duty magnetic power contactor with encapsulated wide band operating coil voltage range 190-440v, motor circuit protection (under voltage, single phasing, phase reversal , phase unbalance, overload protection) , star delta timer, 3 pole mcb, voltmeter (0-500v), ammeter (0-30/50a), indicating lamp (on, off & trip). , no volt coil (medium type)-20 hp oil immersed starter