APC Easy UPS 3S 40 kVA 400V 3:3 UPS

This APC Easy UPS 3S 40 kVA 400V 3:3 UPS is a powerful, three-phase, double-conversion (on-line) unit built for critical infrastructure like data centers, industrial systems, or business power rooms. It delivers a full 40 kVA (or 40 kW at unity power factor) and ensures clean, stable power even through major voltage fluctuations. Its design makes it accessible to install, operate, and service, with modular battery strings and front-access serviceability.

The unit comes with internal VRLA battery strings (3 by default, expandable to 4) for backup and supports parallel operation for redundancy or higher capacity. It’s built to be efficient, with a high-efficiency operating mode, and includes practical features like a dust filter and conformal-coated electronic boards to protect against working in tough environments.

APC Easy UPS 3S 40 kVA 400V 3:3 UPS Key Features

• 40 kVA / 40 kW capacity (3‑phase in, 3‑phase out)
• Double‑conversion (on-line) topology
• Pure sine wave output
• Input voltage: 400V 3‑phase (configurable)
• Output voltage: 400V 3‑phase
• Input voltage range: ~304 V – 477 V
• Efficiency: up to ~96% in online mode, ~99% in ECO mode
• Internal battery: 3 × 7 Ah VRLA modular strings (expandable to 4)
• Scalability: Supports up to 4 units in parallel (for redundancy or capacity)
• Overload capacity: ~130–150% for a short period
• LCD interface for status, alarms, and configuration
• Hot‑swappable battery modules
• Dust filter and conformal-coated boards for dusty/humid environments
• Remote monitoring ready (with optional cards)
• Operating temperature: 0°C to 40°C
• Noise level: ~63 dBA