Commercial UPS

EON 31 Series

Online Uninterruptable Power Supply

3:1 Phase Tower Type Uninterruptable Power Supply

  • Online Double Conversion
  • Phase Changer
  • 3:1 Phase
  • Up to 20kVA
  • Standalone Type

ENCLOVE Energy's EON 31 Series bridges the gap between high-capacity industrial power and standard single-phase critical loads through advanced 3:1 online double-conversion technology. By drawing power across three input phases, it ensures optimal load balancing on your facility's electrical grid while delivering a perfectly stabilized, pure sine wave single-phase output. This series is the ideal choice for environments where a robust three-phase supply is available but absolute precision is required for specialized medical, laboratory, or server equipment.

Efficiency
≥ %94 / ≥ %98On-Line / ECO Mode
Output Power Factor
1.0kVA = kW
Input Voltage Range
305 - 499VAC (Full Power)
Transfer Time
0ms (Bypass to INV)

Product Overview

EON 31 Series delivers reliable and efficient power protection for critical applications, PCs and Servers from 10 kVA to 20 kVA. Featuring online double conversion with advanced DSP control, high power density, and up to 92% in Line Mode and 97% in ECO mode efficiency, it ensures stable, clean power even under challenging conditions.

Designed for offices, commercial centers, medical equipment the EON 31 Series offers intelligent battery management, frequency converter mode (50/60Hz) and wide range of control and monitoring options. Compact, quiet, and built for long time operation, it combines cutting-edge technology with user-friendly design to keep your operations running without interruption.

Technical Highlights

  • Digital signal processor controlled high frequency 3 level technology
  • Input power factor correction (PFC)
  • 50/60 Hz Frequency converter mode
  • High output power factor of 1.0 (kVA = kW)
  • Smart fan system sensitive to load percentage
  • Standard emergency power off (EPO) function
  • Optional additional charger board and additional battery unit
  • Optional N+X parallelability function with manual bypass
  • FLEXIBLE BATTERY CONFIGURATION

    IN-BUILT AND EXTERNAL BATTERY CONFIGS ALLOW FLEX BACKUP TIMES

  • HIGH POWER DENSITY

    COMPACT UNITS ENSURES TO STORE IT IN ANY LOCATION

  • FREQUENCY CONVERTER MODE

    CAN BE OPERATED AS 50/60HZ FREQUENCY CONVERTER

  • N+X PARALLELABLE

    N+X PARALLEL CONFIGURATION WITH EXTERNAL M. BYPASS

Key features

Wide Input Voltage Range

(110-300V)

Cold Start

(Start from Battery without Mains)

Configurable Operation Mode

(3:1 / 1:1) from LCD

Advanced Battery Management

(ABM)

EMC Compatibility

(EMC-LVD Certificates)

2 Years Warranty

/ 10 Years Spare Parts Warranty

Technical specifications

The table below reproduces the EON 31 Series datasheet specifications for all six models — EON3110-S, EON3110-L, EON3115-S, EON3115-L, EON3120-S and EON3120-L — covering 10kVA / 10kW, 15kVA / 15kW and 20kVA / 20kW ratings.

  • EON3110-S

    POWER (kVA/kW)
    10kVA / 10kW
    Enquire
  • EON3110-L

    POWER (kVA/kW)
    10kVA / 10kW
    Enquire
  • EON3115-S

    POWER (kVA/kW)
    15kVA / 15kW
    Enquire
  • EON3115-L

    POWER (kVA/kW)
    15kVA / 15kW
    Enquire
  • EON3120-S

    POWER (kVA/kW)
    20kVA / 20kW
    Enquire
  • EON3120-L

    POWER (kVA/kW)
    20kVA / 20kW
    Enquire
EON 31 Series technical specifications, compared across 6 models.
Model EON3110-S EON3110-L EON3115-S EON3115-L EON3120-S EON3120-L
POWER (kVA/kW) 10kVA / 10kW 15kVA / 15kW 20kVA / 20kW
INPUT
Wiring 3P+N+PE (5 Wires)
Voltage 380 / 400 / 415 VAC
Voltage Range 305 - 499VAC (Full Power)
50% to 100% linear de-rate @ 190 - 305VAC
Frequency 40~70Hz (Auto Sensing)
Input Power Factor ≥ 0,99
Total Harmonic Distortion (THDi) ≤ 5%
Bypass Voltage Range -40%~+15% (LCD Panel Selectable)
OUTPUT
Wiring 1P+N+PE (3 Wires)
Voltage 208 (PF=0.9) / 220 / 230 / 240 VAC (LCD Panel Selectable)
Voltage Regulation ±%1 (Lineer Load)
Frequency 50 / 60Hz
Frequency Regulation ±%0.1 Hz (Lineer Load)
Waveform Pure Sine Wave
Output Power Factor 1.0
Crest Factor 3:1
Total Harmonic Distortion (THDu) Lineer Load ≤ %1 / Non Lineer Load ≤ %3
Overload Characteristics 105% - 110% load - 10 mins (then Bypass)
110% - 125% Load - 1 min (then Bypass)
125% - 150% Load - 30 secs (then Bypass)
Efficiency On-Line Mode: ≥ %94
ECO Mode: ≥ %98
Transfer Time Bypass to INV: 0 ms
INV to Bypass: <5ms
BATTERY
Battery Voltage 192VDC (192 - 240VDC Configurable)
Battery Quantity 16 pcs. (16 to 20 Configurable)
Internal Battery 12V / 9Ah x 16 N/A
Battery Charge Current 1A 5A (10A Optional)
Battery Re-Charge Time 8 hrs to 90% Depend on the battery capacity / charger board capacity
SYSTEM
Protections Short Circuit, Over Load, Over Temperature, Battery Low, Over Voltage, Low Voltage, Fan Failure
Maximum Parallelable Units 4
Communication RS232 (standard), USB / RS485 / Dry Contacts / SNMP / Battery Temperature Compansation (Optional)
HMI LCD + LED Panel
ENVIRONMENTS & STANDARDS
Operation Temperature 0˚C- 40˚C
Operation Humidity %0 ~ %95 (Non-condesing)
Storage Temperature -40˚C~ 55˚C (without battery)
Ingress Protection IP20
Audible Noise <58 Db ( 1 meter away )
Operation Altitude ≤1000m (without de-rate) / 1% de-rate in each 100 m after 1000m
PHYSICAL PROPERTIES
Net Dimensions (W*D*H) 191 x 495 x 711 191 x 495 x 350 191 x 495 x 515
Packed Dimensions (W*D*H) 310 x 685 x 941 318 x 617 x 475 285 x 593 x 685
Net Weight (kg) 64 18 26,5
Packed Weight (kg) 72 20 28

* Our company has the right to change the model, visual and technical specification information of the products without prior notice.

Frequently asked questions

Answers taken from the EON 31 Series datasheet.

What power ratings does the EON 31 Series UPS cover?

The datasheet covers six models: EON3110-S and EON3110-L at 10kVA / 10kW, EON3115-S and EON3115-L at 15kVA / 15kW, and EON3120-S and EON3120-L at 20kVA / 20kW. Output power factor is 1.0, so kVA equals kW.

How does the EON 31 Series 3:1 phase UPS convert three phase input to single phase output?

Input wiring is 3P+N+PE (5 Wires) at 380 / 400 / 415 VAC and output wiring is 1P+N+PE (3 Wires) at 208 (PF=0.9) / 220 / 230 / 240 VAC (LCD Panel Selectable). The operation mode is Configurable Operation Mode (3:1 / 1:1) from LCD, and the unit can be operated as a 50/60Hz frequency converter with output frequency of 50 / 60Hz.

What battery configuration does the EON 31 Series UPS use?

Battery voltage is 192VDC (192 - 240VDC Configurable) with a battery quantity of 16 pcs. (16 to 20 Configurable). Only the EON3110-S carries an internal battery of 12V / 9Ah x 16; battery charge current is 1A on the EON3110-S and 5A (10A Optional) on the other models.

What is the efficiency and overload capability of the EON 31 Series UPS?

Efficiency is On-Line Mode: ≥ %94 and ECO Mode: ≥ %98. Overload characteristics are 105% - 110% load - 10 mins (then Bypass), 110% - 125% Load - 1 min (then Bypass) and 125% - 150% Load - 30 secs (then Bypass), with transfer times of Bypass to INV: 0 ms and INV to Bypass: <5ms.

What are the operating temperature, humidity and altitude limits of the EON 31 Series UPS?

Operation temperature is 0˚C- 40˚C and operation humidity is %0 ~ %95 (Non-condesing), with storage temperature of -40˚C~ 55˚C (without battery). Ingress protection is IP20, audible noise is <58 Db ( 1 meter away ) and operation altitude is ≤1000m (without de-rate) / 1% de-rate in each 100 m after 1000m.

What communication ports and certificates does the EON 31 Series UPS have?

Communication is RS232 (standard), USB / RS485 / Dry Contacts / SNMP / Battery Temperature Compansation (Optional), and the HMI is an LCD + LED Panel. The datasheet lists EMC Compatibility (EMC-LVD Certificates), and the rear panel provides RS232, EPO (OPTIONAL), PARALLEL PORT (OPTIONAL), USB (OPTIONAL), TEMPERATURE SENSOR (OPTIONAL) and a COMMUNICATION SLOT.

Documentation & downloads

Download the latest documentation for the EON31 Series. Files are provided in their current revision; contact us if you need a previous version or a localised translation.

  • Product Datasheet PDF · 0.6 MB

    Full technical specifications, and product features including all the options.

    Download
  • Installation & User's Manual PDF

    Step-by-step installation instructions, menu details, and operating procedures.

    Request
  • PC & Monitoring Software PDF

    Computer Program or Programs helps you to monitor or set the unit.

    Request

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