EP Series 3Phase Industrial UPS

EP Series Three-Phase Input Three-Phase Output Industrial UPS (10kVA-600kVA)

High-Stability Double Conversion UPS With Built-In Isolation Transformer For Harsh Industrial Power Grid Conditions

Product Overview

      EP series industrial UPS covers capacity range from 10kVA to 600kVA, applying mature online double conversion topology and integrated output isolation transformer. It delivers excellent adaptability against complicated grid disturbances, stabilizes clean power for critical industrial loads, blocks bidirectional power interference between mains/generator and end loads. 

      Redundant key components, full digital control and strong anti-interference performance make this EP series industrial UPS suitable for industrial sites with strict power quality requirements, including semiconductor production lines, petrochemical plants and automated manufacturing workshops. The system supports up to 6 units parallel operation for capacity expansion.

Key Features & Benefits

1. Stable & Secure Power Performance

   ● Wide input voltage and frequency window reduces battery charge-discharge cycles and extends battery service life

   ● Built-in output isolation transformer suppresses neutral-ground voltage deviation and load harmonic current impact on inverter

   ● Superior load adaptability, strong overload and short-circuit tolerance to avoid hardware damage under harsh working conditions

   ● Independent heat dissipation architecture guarantees reliable operation in dusty, fluctuating industrial environments

   ● True online double conversion architecture delivers continuous regulated backup power

2. Strong Grid Adaptability

   ● Ultra-wide input voltage and frequency tolerance fits unstable utility grid and diesel generator power input

   ● Full DSP digital control optimizes overall system operation stability

3. Intelligent & Easy Operation

   ● Masterless autonomous parallel current sharing control, maximum 6 units parallel connection

   ● Intuitive LCD display for real-time operation monitoring and simple local operation

   ● Optional communication ports: RS232, RS485, SNMP and dry contact interfaces for remote management

4.General Technical Specifications

Main AC Input

Rated Input Voltage: 380/400/415Vac

Input Voltage Tolerance: ±25%

Wiring Scheme: 3-phase 4-wire

Input Frequency Range: 45-55Hz/55-65Hz

Input Power Factor: ≥0.97

Bypass Input

Rated Input Voltage: 380/400/415Vac

Wiring Scheme: 3-phase 5-wire

Bypass Synchronization Tracking Range: ±2Hz(40.5,41,42), ±3Hz adjustable

Battery Specifications

Models from 10kVA to 200kVA: Standard battery voltage 360-384Vdc (30-32 cells optional); EP200L adopts dedicated 480V (40 cells)

Models from 300kVA to 600kVA: Standard battery voltage 360-384Vdc (30-32 cells optional); EP600L adopts dedicated 480V (40 cells)

Output Parameters

Output Voltage: 380Vac / 400/415Vac ±1%

Output Power Factor: 0.9

Output Frequency: Automatic bypass frequency tracking

Waveform Distortion: THDv ≤2% under 100% linear load

Transfer Time: 0ms

Full-load Efficiency: Up to 95.0%

Overload Performance: Continuous operation at <110% load for 60min; <125% load for 10min; <150% load for 1min

Environmental Conditions

Operating Temperature: 0℃-40℃

Storage Temperature: -25℃~+55℃ (battery excluded)

Relative Humidity: 0~95% non-condensing

Altitude Rating: Full output below 1500m; derate capacity in accordance with GB/T3859.2 for installation above 1500m

Functional Features

Alarm: Notifications for output overload, mains failure, UPS fault and low battery; historical alarm log query supported

Protection: Safeguards against output short circuit, overload, over temperature, low battery, output over/undervoltage; fan fault alarm (optional)

Communication Interfaces: RS232, RS485, optional dry contact terminals, optional SNMP card

Compliance Standards

YD/T1095-2018, IEC/EN62040-1, IEC/EN60950-1

Note: All specifications above are tested values with optional filter fitted

5.Model-Specific Dimensions, Weight & Noise 

Applications

     1.Semiconductor manufacturing production systems

     2.Power plants, steel mills, petrochemical, pharmaceutical manufacturing and environmental purification facilities

     3.High-speed railways, metro systems, shore ship bases and marine vessels

     4.Factory automated production lines and industrial control systems

Certifications & Quality

      This EP series industrial UPS is designed and tested in accordance with YD/T1095-2018, IEC/EN62040-1 and IEC/EN60950-1 international industrial power equipment standards, with redundant component design and strict factory performance inspection for stable long-term operation.

6.Frequently Asked Questions (FAQ)

Q1: How many EP series UPS units can be connected in parallel?

A1: Masterless parallel technology supports up to 6 units parallel connection for capacity expansion or redundant backup.

Q2: Is this UPS suitable for diesel generator input?

A2: Yes. Ultra-wide input voltage and frequency range adapts to unstable power supplied by diesel generators, widely used in industrial sites with generator backup.

Q3: Can I remotely monitor the UPS running status?

A3: Yes. Optional RS485, RS232, dry contact and SNMP communication modules support remote monitoring and alarm data upload to SCADA system.

Q4: Does the EP series UPS contain built-in isolation transformer?

A4: Yes. Built-in output isolation transformer effectively suppresses zero-ground voltage and harmonic interference, ideal for industrial sensitive loads.

Q5: What is the transfer time between mains and battery mode?

A5: 0ms transfer time, loads will not experience power interruption during mode switching.

Q6: What altitude derating rule should I follow?

A6: It can operate at full power below 1500m. If the installation altitude exceeds 1500m, capacity derating must follow GB/T3859.2 standard.

7.Why Choose Us

   ● We specialize in industrial UPS R&D and manufacturing for global EPC and factory power projects.

   ● We support bulk order configuration adjustment and OEM labeling for overseas industrial clients.

   ● Complete after-sales documents including test reports, operation manuals and remote commissioning guidance are provided.

8.Get A Custom Quotation

      Submit your load capacity, on-site grid conditions and parallel requirements via the inquiry form. Our technical team will prepare a customized quotation and complete product datasheet for EP series industrial UPS and reply to you within 24 working hours.