The PowerWare 9125 is a double-conversion online UPS system that protects sensitive electronic equipment from power anomalies including failures, sags, surges, brownouts, line noise, voltage spikes, frequency variations, switching transients, and harmonic distortion. It delivers continuous, conditioned power in both rack-mount and tower configurations, with 2U rack height models maximizing space efficiency. The unit generates pure sine wave output and supports load segmentation for orderly shutdown of non-critical systems, extending battery runtime for critical infrastructure. Internal maintenance-free sealed lead-acid batteries and support for up to four hot-swappable Extended Battery Modules enable flexible runtime expansion without service interruption.
Technical Specifications
• Power Ratings: 700 VA, 1000 VA, 1250 VA, 2000 VA, 2500 VA, 3000 VA, 5000 VA, 6000 VA
• Input Voltage: 120 Vac, 208 Vac, 230 Vac nominal
• Input Voltage Range: 80–144 V (120V models); 160–288 V (208/230V models) without battery discharge
• Output Waveform: Pure sine wave
• Input Power Factor: >0.95 typical
• Output Power Factor: 0.7
• Frequency: 50/60 Hz auto-sensing; operating range 45–65 Hz
• Efficiency (0.7–3 kVA): 89–92% depending on load
• Efficiency (5–6 kVA): >85% Online Mode; >90% High-Efficiency Mode
• Form Factor: Rack/Tower (2U standard; some 6 kVA models 5U)
• Internal Batteries: Sealed lead-acid; 700/1000 VA: (2) 12V 9 Ah; 1250–2000 VA: (4) 12V 9 Ah
• Extended Battery Modules: PW9125 24 EBM: (8) 12V 9 Ah; PW9125 48 EBM: (4) 12V 9 Ah; up to four modules supported
– Key Features
• Load segmentation on 0.7–3 kVA units enables independent control of receptacle groups
• Remote Power Off (REPO) port accepts customer-supplied remote switch for output control
• Hot-swappable battery modules support runtime extension without UPS shutdown
• Auto-sensing frequency detection accommodates 50 Hz and 60 Hz input supplies
– Interfaces
• RS-232 serial communications port
• RJ-45 network interface (230V models only) with SNMP support
• REPO port for remote shutdown control
– Status
The PowerWare 9125 is no longer available as factory new. Eaton Powerware 9130 and 9130 RM are recommended replacements.


















