Heritage PowerGuard Uninterruptible Power Supplies
Double-conversion online UPS systems that guarantee clean, continuous power for critical loads.
Overview
The Heritage PowerGuard is a true double-conversion online UPS system available from 10 kVA to 1,600 kVA, providing zero-transfer-time protection against power outages, sags, surges, and harmonic distortion. Featuring IGBT-based rectifier and inverter technology with input power factor correction to 0.99, the PowerGuard draws clean sinusoidal current from the utility while delivering a tightly regulated output. Scalable N+1 parallel configurations and lithium-ion battery options deliver industry-leading power density and reliability.
Key Features
- True double-conversion online topology with zero transfer time
- Input power factor greater than 0.99 with less than 3% iTHD at full load
- Unity output power factor (kW = kVA) maximizing usable capacity
- Scalable parallel redundancy (N+1) up to 6 units for 9,600 kVA total
- Lithium-ion battery option reducing battery footprint by 60% and extending life to 15+ years
- Integrated bypass with make-before-break static transfer switch (< 4 ms)
Technical Specifications
| Specification | Value |
|---|---|
| Power Rating | 10 kVA to 1,600 kVA per unit (N+1 parallel to 9,600 kVA) |
| Input Voltage Range | 305-477 V AC, 3-phase (no battery drain across full range) |
| Output Voltage | 380 / 400 / 415 / 480 V AC, 3-phase, tightly regulated +/- 1% |
| Output Power Factor | Unity (1.0), kW equals kVA |
| Efficiency | Up to 97.2% in double-conversion mode; 99% in eco-mode |
| Transfer Time | 0 ms (online); < 4 ms (bypass to inverter) |
| Battery Options | VRLA (5-10 year design life), lithium-ion (15+ year, 60% smaller footprint) |
| THDv Output | Less than 1% with linear load; less than 3% with non-linear load |
| Operating Temperature | 0 C to +40 C (no derating) |
| Dimensions (500 kVA) | 31.5"W x 74.8"H x 35.4"D (800 x 1,900 x 900 mm) |
Applications
Certifications & Compliance
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