EVI 20000VA / 18000W Tower Online 3 Phase UPS (EP-UPS20000Y33OT)

The EVI 20000VA / 18000W Tower Online 3 Phase UPS is an industrial-grade power protection solution engineered for enterprise and mission-critical environments requiring high-capacity, continuous power availability. Designed with true online double-conversion technology and advanced DSP control, the EP-UPS20000Y33OT delivers clean, regulated, pure sine wave power with zero transfer time. Its 3-phase input and 3-phase output architecture, parallel redundancy support, and intelligent battery management make it ideal for data centers, healthcare facilities, industrial automation, and financial infrastructure.

Product Features

True Online Double Conversion with DSP Control

Provides continuous power conditioning with zero transfer time, fully isolating connected equipment from voltage fluctuations, harmonics, and electrical disturbances.

High Power Capacity with Stable Output

Delivers 20kVA / 18kW of reliable power with a 0.9 output power factor, supporting high-density loads and critical three-phase equipment.

3 Phase Input and Output Configuration

Designed with a 3-phase input and 3-phase output (3:3) topology for balanced load distribution and enhanced system efficiency in enterprise environments.

Wide Input Voltage and Frequency Range

Supports an extended input voltage range of 208V to 478V AC and a frequency range of 40Hz to 70Hz, ensuring stable operation even in unstable grid or generator-powered environments.

Zero Transfer Time Protection

Ensures uninterrupted power delivery with 0ms transfer time, preventing downtime or damage to sensitive equipment.

Parallel Redundancy and Scalability

Supports N+X parallel redundancy with up to four units, allowing capacity expansion or fault tolerance for high-availability applications.

Advanced Battery System with Expandability

Equipped with internal sealed lead-acid batteries and supports external battery packs for extended runtime, backed by intelligent charging and battery management.

Energy-Saving ECO Mode

Improves operational efficiency during stable power conditions by reducing energy consumption without compromising protection.

Intelligent Monitoring via Touchscreen LCD

Features a 7-inch color touchscreen LCD that provides real-time visibility of load status, battery health, alarms, and diagnostics.

Comprehensive Safety and Protection Features

Includes Emergency Power Off, DC cold start capability, and intelligent battery management to enhance operational safety and reliability.

Flexible Connectivity and Remote Management

Offers multiple communication interfaces with optional SNMP support for centralized monitoring, network integration, and remote management.

Product Specifications

• Power Capacity: 20000VA / 18000W
• Output Power Factor: 0.9
• UPS Topology: True Online Double Conversion with DSP control
• Phase Configuration: 3-phase input / 3-phase output (3:3)
• Input Voltage Range: 208V – 478V AC
• Input Frequency Range: 40Hz – 70Hz (auto-sensing)
• Output Voltage Options: 380V / 400V / 415V AC
• Output Waveform: Pure sine wave
• Transfer Time: 0 ms
• Input Current Harmonic Distortion: ≤ 3% with PFC
• Efficiency Mode: ECO mode supported
• Internal Battery Type: Sealed Lead Acid (SLA)
• Internal Battery Configuration: 40 × 9Ah batteries
• External Battery Support: Yes, optional battery packs
• Battery Charging: Intelligent battery management system
• Parallel Redundancy: N+X support, up to 4 units
• Form Factor: Tower
• Display: 7-inch color touchscreen LCD
• Noise Level: <65 dB at 1 meter
• Operating Temperature: 0°C to 40°C
• Standard Communication Ports: USB, RS232, RS485, Parallel Port, Dry Contact
• Optional Interfaces: SNMP card, relay card
• Safety Functions: Emergency Power Off, DC start (cold start)