FAQ: EPS Emergency Power Supply Guide
Last updated 2026-08-25
An EPS (Emergency Power Supply) serves a fundamentally different role from a standard UPS — it’s purpose-built for motor-driven loads, emergency lighting, and evacuation systems. This guide covers High Idea Power’s complete EPS lineup, from compact roller shutter units to industrial three-phase systems.
1. What is an EPS and how is it different from a standard UPS?
While a UPS provides near-instantaneous backup primarily for IT equipment, an EPS is built for motor-driven and lighting loads — electric roller shutters, sliding gates, fire alarm systems, emergency lighting, and evacuation systems. EPS units operate in standby mode and are optimized for higher inrush currents that motor loads demand on startup.
2. What EPS models does High Idea Power offer for small commercial use?
EPS-6D / EPS-12D (Roller Shutter Series):
| Model | Rated Power | Battery | Dimensions (mm) | Weight |
|---|---|---|---|---|
| EPS-6D | 600W | 12V/7AH × 2 | 308×226×96 | 8 kg |
| EPS-12D | 1200W | 12V/7AH × 4 | 308×285×120 | 16 kg |
Both are wall-mountable with 80-meter wireless remote control, supporting motor loads up to full rated wattage with 3-month standby capability.
Single-Phase EPS Series (1K–20K): Pure sine wave output (THD ≤5%) at 220VAC ±3%, operating from -10°C to 40°C, with customizable backup of 30/60/90/120/180 minutes based on battery configuration.
3. What about three-phase EPS for industrial buildings?
High Idea Power’s three-phase EPS lineup scales from 2KVA to 200KVA, accepting 380VAC ±15% input and delivering 380VAC ±3% pure sine wave output. All models use sealed lead-acid maintenance-free batteries with noise below 50dB during emergency operation — suitable for occupied buildings, hospitals, and commercial centers.
4. Can an EPS power equipment other than motors and lights?
Yes. The EPS-6D and EPS-12D can also power desktop computers, impact drills, aquarium pumps, and electric fans. The pure sine wave output ensures compatibility with sensitive electronics, though the transfer time means EPS is not ideal for servers requiring zero interruption.
5. How do I install an EPS unit?
- Wall-mount models (EPS-6D, EPS-12D): Compact with mounting brackets, 80m wireless remote eliminates wired control wiring.
- Floor-standing models (EPS-1K+): Enclosed cabinets in electrical rooms with adequate ventilation (-10°C to 40°C, <2500m altitude).
6. What maintenance does an EPS require?
- Automatic charging keeps batteries topped up without intervention. EPS-6D/12D can sustain standby for 3 months.
- Run a full discharge test every 3–6 months to verify battery health.
- Replace lead-acid batteries every 2–3 years. Keep ventilation unobstructed.
7. EPS vs. Inverter for gate/door applications — which to choose?
| Feature | EPS-6D/12D | Standard Inverter |
|---|---|---|
| Built-in battery | Yes (pre-configured) | No (external required) |
| Wireless remote | 80m range included | Not included |
| Motor inrush handling | Optimized for motors | Generic, may trip |
| Wall-mount design | Yes | Typically rack-mount |
For purely motor-driven applications, an EPS is the simpler, more integrated solution. For general-purpose DC-to-AC conversion, a High Idea Power H-series Inverter (48V/110V/220V DC input variants) is more appropriate.