DELTA NT Series, Three Phase, 20-500 kVA Enterprise power customized for greatest reliability The Ultron NT series is a three phase UPS featuring customized I/P-O/P ratings for various applications. With N+X parallel redundancy or expansion, it guarantees high availability and reliability for your critical loads. The Ultron NT series offers continued seamless protection for your business even under 100% unbalanced loading conditions. Its economy mode improves efficiency by 4% to 7% and saves operating cost. Features & Benefits Available from 20 to 4, 000 kVA (8 x 500 kVA in parallel). Parallel redundancy without requiring extra hardware to increase reliability. Optional harmonic filter and 12-pulse rectifier. Redundant auxiliary power and control circuit ensures higher reliability. Inbuilt maintenance and static bypass switch. Multi-language LCD display and LED status indicators. RS232, RS485 and six programmable dry contact outputs. Compatible with generator installation and unbalanced loads. Optional external battery cabinet for longer backup time. Parallel expansion as your business grows and consequently saves initial investment. Wide input voltage range extends battery lifetime. Economy mode saves energy and operating cost. Common battery installation saves initial investment. Specifications Model NT-20K / NT-30K / NT-40K / NT-50K NT-60K / NT-80K / NT-100K / NT-120K NT-160K / NT-200K / NT-260K NT-320K / NT-400K / NT-500K Power Rating NT-20K : 20kVA / 16kW NT-30K : 30kVA / 24kW NT-40K : 40kVA / 32kW NT-50K : 50kVA / 40kW NT-60K : 60kVA / 48kW NT-80K : 80kVA / 64kW NT-100K : 100kVA / 80kW NT-120K : 120kVA / 96kW NT-160K : 160kVA / 128kW NT-200K : 200kVA / 160kW NT-260K : 260kVA / 208kW NT-320K : 320kVA / 256kW NT-400K : 400kVA / 320kW NT-500K : 500kVA / 400kW