EVI 20000VA / 18000W Tower Online 3 Phase UPS Double Conversion, Inbuilt Batteries, 7″ Touch LCD
Product Overview & Features Description
Deliver unwavering electrical resilience to mission-critical industrial plants, data halls, and healthcare centers with the EVI 20000VA / 18000W Tower Online 3 Phase UPS (Model: EP-UPS20000Y33OT). Built on advanced online double-conversion architecture with full Digital Signal Processor (DSP) digital control technology, this heavy-duty unit protects loads against harmonic distortions, sags, blackouts, and electrical noise with an instantaneous 0 ms transfer time. Operating with an ultra-wide input voltage window of 208–478 Vac, an input frequency range of 40–70 Hz, and low input current harmonic distortion (\le 3\%), the EVI 20000VA / 18000W Tower Online 3 Phase UPS guarantees complete grid isolation without unnecessary battery drainage.
High-efficiency power management is at the core of the system. The EVI 20000VA / 18000W Tower Online 3 Phase UPS delivers an efficient 0.9 output power factor, integrated Power Factor Correction (PFC), and built-in ECO mode operation that optimizes operating expenses while delivering uninterrupted 3-phase power. Real-time telemetry, historical event logs, and load diagnostics are presented clearly through an integrated 7-inch color touch LCD display.
Scalability is effortless on the EVI 20000VA / 18000W Tower Online 3 Phase UPS, which natively supports N+X parallel redundancy for up to 4 units running concurrently on a shared bus. Pre-configured with robust internal batteries, cold DC-start functionality, and dual smart charging stages that extend cell lifespan, the unit also accepts external battery cabinets for multi-hour reserve power demands. You can purchase the authentic EVI 20000VA / 18000W Tower Online 3 Phase UPS today directly from Potent.it Store with dedicated technical after-sales assistance. Every machine is covered by a 2-year electronics warranty (1 year on batteries). Equip your facility with the EVI 20000VA / 18000W Tower Online 3 Phase UPS for seamless 24/7 industrial and IT operational continuity.
Technical Specifications
| Specification Field | Technical Detail |
| Product Model Name | EVI 20000VA / 18000W Tower Online 3 Phase UPS |
| Model Number / SKU | EP-UPS20000Y33OT |
| UPS Topology | True Online Double Conversion (Full DSP Digital Control) |
| Phase Configuration | 3 Phase In / 3 Phase Out (3:3 Hardwired Terminal Block) |
| Rated Apparent / Active Power | 20,000 VA / 18,000 W (Output Power Factor: 0.9) |
| Transfer Time | 0 ms (Inverter to Bypass / Battery Mode) |
| Input Voltage Range | 208 – 478 Vac (Line-to-Line) |
| Input Frequency Range | 40 Hz – 70 Hz (Auto-sensing / Generator Compatible) |
| Input Current Distortion (THDi) | \le 3\% at linear full load (Integrated PFC) |
| Output Voltage Regulation | 380 / 400 / 415 Vac \pm 1\% (3 Phase + Neutral) |
| Parallel Redundancy | N+X parallel redundancy, supports up to 4 units in parallel |
| Battery Configuration | Inbuilt high-rate VRLA battery bank; supports optional external battery banks |
| Charging & Control | Fully digital Charging / Rectifier / Inverter with intelligent battery management |
| Display Interface | 7-inch Graphical Color Touch LCD Display with LED status bar |
| Communication Ports | USB, RS232, RS485, Parallel Port, Dry Contact Relay |
| Expansion Slots | Optional Intelligent SNMP Card / AS400 Relay Card slot |
| Safety Functions | Emergency Power Off (EPO), DC Cold-Start, Dual Input bypass support |
| Warranty Coverage | 2 Years Limited Warranty (1 Year on internal battery bank) |
Connectivity, Bus Architecture & Control Interface
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Heavy-Duty Terminal Blocks: Direct industrial screw terminal blocks for 3-Phase + Neutral + Ground AC input and output cabling.
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Comprehensive Serial & Network Ports: USB, RS232, RS485 (Modbus protocol), and programmable dry contact interfaces for integration into Building Management Systems (BMS) and Data Center Infrastructure Management (DCIM).
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High-Speed Parallel Bus: Built-in parallel port enables modular load sharing and N+X multi-chassis redundancy across up to 4 parallel frames without centralized single points of failure.
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Remote Safety EPO Port: Hardware Emergency Power Off terminal directly tied to facility fire control circuits for instantaneous load shutdown.
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7-Inch Touchscreen Display: Intuitive touch interface showing line-to-line phase voltages, current draws, frequency, battery run time, temperature metrics, and alarm logs.
Pros & Key Benefits
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Absolute Zero-Second Downtime: True online double conversion eliminates transfer gaps (0 ms), safeguarding sensitive servers, broadcast gear, and precision factory tools from micro-interruptions.
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Ultra-Low Harmonic Feedback (\le 3\% THDi): Active PFC prevents electrical pollution back into the facility transformer and prevents overheating of upstream breakers.
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Cost-Efficient Scalability (N+X): Expand your power capacity or achieve fail-safe N+1 redundancy by paralleling up to 4 units as electrical demand expands.
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Ready-to-Deploy Inbuilt Batteries: Comes fully assembled with internal batteries for instant backup power without requiring separate, expensive external battery rooms on day one.
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Smart Battery Conditioning: Multi-stage digital charging profiles prevent thermal runaway, adjust charging rates dynamically according to ambient temperature, and prolong cell service life.
Variation Price Matrix (Kenya Shillings – KSh)
| 3-Phase Online UPS Model | Capacity / Output | Battery Setup | Chassis Form | Estimated Price (KSh) |
| EVI 10kVA 3-Phase Online UPS | 10,000VA / 9,000W | Inbuilt Battery Pack | Tower | KSh 245,000 |
| EVI 20kVA 3-Phase UPS (Featured) | 20,000VA / 18,000W | Inbuilt Internal Battery Pack | Floor Tower | KSh 380,000 |
| EVI 20kVA Long-Run Model | 20,000VA / 18,000W | External Heavy-Duty Battery Rack | Tower + Rack | KSh 495,000 |
| EVI 30kVA 3-Phase Online UPS | 30,000VA / 27,000W | External High-Capacity Bank | Tower Frame | KSh 620,000 |
Looking for complete enterprise power backup systems? Shop for more EVI UPS deals at Potent.it.
Suitable Application Areas
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Enterprise Data Centers & Modular Server Rooms: Powers multi-rack server clusters, core routing backbones, SAN storage arrays, and blade enclosures across three balanced phases.
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Hospitals & Medical Imaging Suites: Provides stable, harmonic-free power to MRI suites, CT scanners, surgical theater lighting, and intensive care monitoring gear.
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Automated Industrial & CNC Production: Shields computerized numeric control (CNC) lathes, industrial robotics, and PLC automation lines from utility voltage sags.
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Broadcast & Telecommunications Hubs: Delivers continuous three-phase clean AC to cellular base stations, satellite transmission earth stations, and digital television headends.
Frequently Asked Questions (FAQs)
Q: What is in the box when I purchase?
- 1x EVI 20000VA / 18000W Tower Online 3 Phase UPS (EP-UPS20000Y33OT) with pre-installed internal batteries
- 1x Parallel Communication Cable (for multi-unit N+X setup)
- 1x RS232 Serial Communication Cable
- 1x USB Interface Cable
- Terminal connection safety shields and mounting hardware
- Detailed User Manual, Installation Guide & Official Warranty Certificate
Q: Can I connect external battery banks to achieve longer backup runtime?
Yes. While this unit contains high-capacity inbuilt batteries for immediate emergency ride-through, it features dedicated DC terminals for adding external battery banks to achieve hours of extended runtime.
Q: Does this 3-phase UPS run smoothly with commercial backup diesel generators?
Yes. With an ultra-wide input frequency tolerance (40–70 Hz) and active power factor correction, the UPS synchronizes with generator sets without treating generator frequency drift as a power outage.
Q: Where can I review wiring diagrams and technical installation manuals?
You can access technical electrical schematics, terminal pinouts, and commission procedures on the official EVI 20000VA / 18000W Tower Online 3 Phase UPS Installation Guide & Support Manual.
Q: How do I arrange supply and logistics in Kenya?
The unit is available directly from the Potent.it Store for commercial collection, or via Online Purchase with Countrywide delivery across Nairobi, Mombasa, Kisumu, Nakuru, Eldoret, and all industrial corridors throughout Kenya.
The EVI 20000VA / 18000W Tower Online 3 Phase UPS stands as a dependable foundation for mission-critical power infrastructure. Backed by full DSP digital control, zero-second inverter transfer, an intuitive 7-inch color touch interface, and flexible 4-unit parallel expandability, it provides the clean, uninterrupted three-phase energy required to protect heavy-duty industrial machinery, medical devices, and enterprise data centers from costly electrical interruptions.





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