Online UPS - 3/1 Phase

Eaton 91PS

Technology: Online (Double Conversion) UPS
Power rating: 8，10，15，20 & 30kVA Models Available
Phase: 3/1 Phase (380V/220V)
Warranty: 2 Year Full Warranty
Description: Eaton 91PS is an online double-conversion UPS (8–30 kW) optimized for mission-critical sites that need high efficiency, strong resiliency, and scalable growth. With ESS/VMMS efficiency features, Hot Sync® parallel redundancy, and ABM® battery management, it helps lower TCO while maintaining maximum availability.
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Eaton 91PS (8–30 kW)

Application focus: Mission-critical power protection for small data centers and critical infrastructure (healthcare, transportation, telecom, industrial/process control, commercial buildings).
Topology / performance: Online double-conversion UPS with high power density and strong power quality for sensitive loads.
Power rating: 8–30 kW (rated in kW with a unity power factor concept for maximum usable power).
Phase configuration: 1:1 or 3:1 (single-phase or three-phase input, single-phase output).
High efficiency: Up to 96% in double-conversion; up to 99% in Energy Saver System (ESS) mode to reduce losses and cooling cost.
Part-load efficiency: Variable Module Management System (VMMS) helps maintain high efficiency at low load levels (useful for redundant systems).
Scalability & serviceability: Modular “pay-as-you-grow” approach; power modules can be added/replaced quickly to minimize time on bypass.
Parallel redundancy: Up to 4 units in parallel with Hot Sync® load sharing (no master/slave dependency), improving system resiliency.
Battery management: ABM® charging strategy to extend VRLA battery life (up to 50%) and reduce unnecessary charging.
Built-in safety features: Integrated backfeed protection and safety components to simplify compliant installations.
Testing & commissioning: Easy Capacity Test (ECT) recirculates energy for load testing, reducing the need for external load banks.
Connectivity: Relay I/O with EPO support; optional network/industrial gateway cards for SNMP/Modbus monitoring and integration with DCIM/BMS and virtualisation tools.