Imagine a sudden power cut while your servers are running. The APC Easy 3S Online UPS 20 kVA Pure Sine Tower White steps in to keep everything alive. This is a high-capacity, double-conversion UPS that delivers clean, uninterrupted power to critical equipment. If you have data centers, manufacturing lines, or medical devices, a power loss can mean lost data, costly downtime, or safety risks. This UPS gives you the protection you need.
APC Easy 3S Online UPS 20 kVA Pure Sine Tower White
Power outages and voltage fluctuations are a daily worry for anyone who runs large three-phase loads. Unstable power can damage sensitive electronics, corrupt data, and halt production. The APC Easy 3S Online UPS 20 kVA Pure Sine Tower White removes that worry by converting incoming AC to a stable pure sine wave and back again, providing 20 kVA of continuous power with less than 3 % total harmonic distortion. Its online topology ensures zero transfer time, so your equipment never sees a dip.
Usages of APC
The tower fits in server rooms, industrial control cabinets, and medical suites. Use it to protect data-center racks, CNC machines, hospital imaging equipment, or large office HVAC systems. It also works well for broadcast studios that need clean audio signals. Because it supports three input and output phases, you can connect it to most commercial three-phase power setups. The white finish blends into clean environments, and the LED display shows status at a glance.
Benefits
- Keeps critical systems running during outages, avoiding costly downtime.
- Provides a pure sine wave that protects sensitive electronics from distortion.
- Offers up to 30 minutes of backup at full load, enough to shut down safely.
- Low noise level (60 dB) lets it operate in occupied spaces without disturbance.
- Simple LED interface lets you monitor battery status and load instantly.
Key Features
- Double-conversion online topology for zero transfer time.
- 20 kVA (20 000 W) continuous output power.
- Pure sine wave output with 3 % THD.
- Three-phase input and output, 380-415 V range.
- Input power factor of 0.99 for efficient use of electricity.
- 60 dB noise rating suitable for indoor installation.
- Supports up to three sealed-lead-acid batteries for extended runtime.
- LED display provides real-time voltage, frequency, and battery level.
- IP20 protection rating and sturdy tower design.
- Certified to CE, IEC, RoHS and other international standards.
Specifications
| Features |
| Noise level |
60 dB |
| Input current Total Harmonic Distortion (THD) |
3% |
| Output voltage Total Harmonic Distortion (THD) |
3% |
| Input power factor |
0.99 |
| Number of output phases |
3 |
| Number of input phases |
3 |
| Maximum current |
37 A |
| Output frequency |
50/60 Hz |
| Output operation voltage (max) |
415 V |
| Output operation voltage (min) |
380 V |
| Input frequency |
45/65 Hz |
| Input operation voltage (max) |
477 V |
| Input operation voltage (min) |
304 V |
| Waveform |
Pure sine |
| Output power |
20000 W |
| Output power capacity |
20 kVA |
| UPS topology |
Double-conversion (Online) |
| Battery |
| Typical backup time at full load |
30 min |
| Number of batteries supported |
3 |
| Battery voltage |
240 V |
| Battery technology |
Sealed Lead Acid (VRLA) |
| Design |
| International Protection (IP) code |
IP20 |
| Display type |
LED |
| Product colour |
White |
| Form factor |
Tower |
| Operational conditions |
| Non-operating altitude |
0 - 15000 m |
| Operating altitude |
0 - 999.9 m |
| Storage relative humidity (H-H) |
0 - 95% |
| Operating relative humidity (H-H) |
0 - 95% |
| Storage temperature (T-T) |
-15 - 40 °C |
| Operating temperature (T-T) |
0 - 40 °C |
| Certificates |
| Certification |
CE, EAC, IEC 62040-1-1, IEC 62040-2, IEC 62040-3, IEC 62040-4, ISTA 2B, RCM, WEEE |
| Compliance certificates |
RoHS |
| Packaging content |
| Quick installation guide |
Yes |
| Weight & dimensions |
| Weight |
446 kg |
| Height |
1400 mm |
| Depth |
928 mm |
| Width |
380 mm |
| Packaging data |
| Package weight |
494 kg |
| Package height |
1640 mm |
| Package depth |
1014 mm |
| Package width |
563 mm |
| Other features |
| Operating temperature (T-T) |
0 - 40 °C |
| Output voltage |
400 V |
