tender for supply, installation, testing and commissioning of 6 kva online ups with battery bank for sdpk centres under vijnana keralam initiative , supply, installation, testing and commissioning of 6 kva online ups with battery bank for sdpk centres under vijnana keralam initiative , ups: ups type: online double conversion capacity: 6 kva / minimum 4.8 kw input voltage range: 160v - 300v ac input frequency: 50 hz ±5% output voltage: 230v ac ±1% output frequency: 50 hz ±0.1% output power factor: = 0.8 efficiency: = 90% at full load lcd / led showing input/output voltage, load %, battery status, alarms protection : overload protection, short circuit protection, over/under voltage protection and battery deep discharge protection cooling: forced air cooling form factor : tower/industrial grade , battery specifications: battery type: sealed maintenance free (smf), vrla rating: 12v, 65ah technology: agm / vrla battery quantity - minimum 12 nos(must support 5- 7 hours backup for the specified sdpk lab load) backup time - minimum 5 hours preferably up to 7 hours battery rack : heavy duty power coated metal rack, proper ventilation and safety arrangement battery manufacturing date less than 6 months from date of supply , cabling & accessories battery interconnecting cables with lugs input and output power cables battery protection using mcb/fuse earthling provision for ups and battery bank