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30 kVA Low Frequency Online UPS, 3-Phase 380 V Input / 3-Phase 380 V Output

Basic Properties
Place of Origin: China
Brand Name: BLAZING POWER
Certification: CE
Model Number: W-15KL
Trading Properties
Minimum Order Quantity: 1 Unit
Price: 2000-3000$/Unit
Standard Packaging: Pallet
Delivery Time: 3-5 Days
Payment Terms: T/T,Western Union,L/C
Supply Ability: Stock
Specifications
Capacity: 30 KVA / 24 KW Input Voltage: 3 X 380VAC / 400VAC / 415VAC(3Ph + N)
Rated frequency: 50 / 60 Hz Nominal battery voltage: 384 V DC, 32 Batteries (29-32 Configurable)
Precision: Stationary: ±1% Transitory: ±1% (load Variations 100-0-100%) Waveform: Pure Sinewave
Output: 3 X 380VAC / 400VAC / 415VAC(3Ph + N) Transfer Time: 0 Ms
Current Limit: High Overload, Short-circuit: RMS Voltage Limit, High Crest-factor Current Charging Current: Min[rated Power (kW) × 1000 / Battery Voltage (real-time, V), 40 A]
High Light:

30 kVA low frequency UPS

,

3-phase 380V input UPS

,

3-phase 380V output UPS

Product Description

Product Overview

The BLAZING POWER W-30KL is a 30 kVA / 24 kW low frequency online UPS with a built-in output isolation transformer. It supplies three-phase 380 / 400 / 415 V loads at an output power factor of 0.8.

A 6-pulse SCR rectifier and inverter provide online power protection, with 0 ms utility-to-battery transfer. Separate main and bypass inputs allow the power paths to be planned around the site's distribution system.

The external VRLA battery bank is selected for the connected load and required backup time. Generator input, parallel operation and monitoring options can be specified with the system.

Send your load and backup requirements for a quotation

Key Features

Built-in output isolation transformer

The W-30KL includes an output isolation transformer for applications requiring galvanic isolation at the UPS output.

Stable three-phase output

Output voltage regulation is ±1%. Sine-wave output has distortion of ≤2% with a linear load and ≤4% with a non-linear load.

Wide main input voltage range

The main input accepts 285–485 V AC phase-to-phase, with nominal voltage options of 380 / 400 / 415 V.

Online operation with 0 ms transfer

The inverter supplies the load during normal online operation, with 0 ms transfer from utility to battery power.

Separate main and bypass inputs

Main and bypass power paths can be incorporated into the upstream distribution plan. Generator input is supported.

Parallel operation and monitoring options

Up to 4 units can operate in parallel. RS232, USB, RS485 and dry contacts are provided; SNMP is available as an option.

Typical Applications

Typical projects include production controls, process electronics and equipment rooms supplied from a three-phase distribution board. Check the connected equipment's load, starting current and supply requirements when selecting the UPS.

01 / AUTOMATION

Production cells and machine controls

PLC cabinets, HMI panels, instrumentation and remote I/O serving a production cell. For CNC equipment, identify whether backup is needed for the controls alone or the complete machine, including its drives.

02 / PRINTING

Printing and converting controls

Tension controls, registration systems, web guides and inspection electronics along a printing or converting line. Assess main drive motors and dryer heaters separately before including them in the UPS load.

03 / IT & COMMUNICATIONS

Server and communication rooms

Servers, storage, network switches and monitoring equipment supplied through the room's distribution system. Select battery capacity for the required shutdown period or the time needed for standby power to become available.

04 / LABORATORY

Laboratory and test equipment

Compatible analysers, data acquisition systems and test-bench controls. Include any intermittent or pulsed loads in the equipment list so their peak demand can be checked during selection.

Technical Specifications

W-30KL key specifications
Parameter Specification
Rating and configuration
Model W-30KL
Rated capacity 30 kVA / 24 kW
Output power factor 0.8
Output isolation transformer Built-in
Main and bypass inputs
Nominal main input voltage 380 / 400 / 415 V AC
Main input voltage range 285–485 V AC (Ph-Ph); 165–280 V AC (Ph-N)
Main input frequency range 50 Hz ±5 Hz / 60 Hz ±6 Hz
Output
Nominal output voltage 380 / 400 / 415 V AC, three-phase + N
Output voltage regulation ±1%
Utility-to-battery transfer time 0 ms
Battery and system functions
Standard battery configuration 32 × 12 V batteries
Charging current 40 A maximum; 5 A at full load
Parallel operation Up to 4 units
Monitoring and environment
Communication interfaces RS232 / USB / RS485 / dry contacts
Protection rating IP20

Ph-Ph: phase-to-phase. Ph-N: phase-to-neutral. N: neutral. PE: protective earth. Confirm the selected voltage, battery configuration and options when ordering.

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Additional technical specifications
Parameter Specification
Rating and configuration
UPS type Low frequency online UPS
Main and bypass inputs
Input phase configuration Three-phase + N + PE
Rectifier 6-pulse SCR
Bypass input voltage range 304–456 V AC (Ph-Ph); 176–264 V AC (Ph-N)
Bypass frequency tracking range 50 Hz ±5 Hz / 60 Hz ±6 Hz
Generator input Supported
Output
Output frequency 50 / 60 Hz ±0.01 Hz in utility and battery modes
Output waveform Sine wave
Output voltage THD ≤2% (linear load); ≤4% (non-linear load)
Battery and system functions
Rated DC voltage 384 VDC
Adjustable battery quantity 29–32 batteries; 348 / 360 / 372 / 384 VDC
Battery type VRLA sealed lead-acid
Charging voltage 395–435 VDC, adjustable
ECO mode / EPO Supported / Supported
Monitoring and environment
Network monitoring Optional SNMP card; one communication card slot
Display 3.5-inch LCD; optional 7-inch full-color touchscreen
Operating temperature 0–55 °C
Storage temperature −25–55 °C, excluding batteries
Relative humidity <95%, non-condensing
Operating altitude 0–1500 m at 100% load
Dimensions (W × D × H) 405 × 656 × 941 mm
Weight 193 kg
Conformal coating / dust filters Supported / Supported

Output overload capability

Load level Specified duration
≤110% 60 minutes
≤125% 10 minutes
≤150% 1 minute
>150% 200 ms

Battery System

External batteries sized for your backup time

The standard string uses 32 × 12 V VRLA batteries for 384 VDC. The UPS supports 29–32 batteries, corresponding to 348 / 360 / 372 / 384 VDC. The configured battery count must match the installed string.

32 × 12 V = 384 VDC

Battery capacity in Ah is selected from the actual load and target runtime. Battery condition and operating temperature also affect available backup time.

Charging current: 40 A maximum; 5 A at full load. Include the available recharge period when specifying the battery bank, especially for long backup times or frequent outages.

For a battery quotation, provide the load in kW, backup time in minutes, battery installation location and approximate cable route to the UPS.

Protection & Monitoring

Protection functions

  • Output short circuit and overload
  • Overtemperature and low battery voltage
  • Output overvoltage and undervoltage
  • Fan failure
  • Lightning protection

EPO (Emergency Power Off) and ECO mode are supported.

Local and remote monitoring

The standard 3.5-inch LCD provides operating information and alarm status. A 7-inch full-color touchscreen is optional.

Alarms cover output overload, utility abnormalities, UPS faults and low battery voltage, with access to alarm history. RS232, USB, RS485 and dry contacts support communication; an optional SNMP card enables network monitoring.

Frequently Asked Questions

How do I check whether 30 kVA is enough for my equipment?

The W-30KL is rated at 30 kVA / 24 kW. Check both the total kVA and kW of the connected equipment, together with starting current and short-duration peaks. Send the equipment list and any planned additions for sizing.

How long will it run on batteries?

Runtime depends on the connected load and selected battery bank. Provide the load in kW and required backup time for battery sizing; the 30 kVA rating does not establish a fixed runtime.

Can I use a battery count other than 32?

Yes. The supported range is 29–32 batteries, with nominal string voltages of 348 / 360 / 372 / 384 VDC. Battery count and charging settings must be configured for the installed bank.

Can I specify a larger battery bank for longer backup?

The external bank can be sized for the required runtime. Check charging and recharge-time requirements as part of the configuration: charging current is 40 A maximum and 5 A at full load.

What are the cabinet dimensions and installation requirements?

The UPS cabinet measures 405 × 656 × 941 mm (W × D × H) and weighs 193 kg. Plan space for the external batteries, cable access, ventilation and servicing. Confirm the required clearances and handling arrangements before installation.

Does it include an output isolation transformer?

Yes. The W-30KL configuration includes a built-in output isolation transformer. Nominal three-phase input and output voltages are 380 / 400 / 415 V.

Can it work with a generator or in parallel?

Generator input is supported, and up to 4 UPS units can operate in parallel. Specify the supply arrangement and parallel requirements when requesting a quotation.

Which monitoring options are available?

RS232, USB, RS485 and dry contacts are standard. An SNMP card is optional for network monitoring. The standard display is a 3.5-inch LCD, with a 7-inch full-color touchscreen available as an option.

Request a W-30KL UPS and Battery Quotation

Send TAFENG the following project details so the UPS, battery bank and monitoring options can be quoted together:

  • Equipment: load list, total kW / kVA and any starting or peak demand.
  • Power supply: input and output voltage, frequency and generator arrangement.
  • Backup: required runtime and available recharge period.
  • Installation: project location, quantity, battery space and cable route.
  • Options: parallel operation, SNMP or other monitoring requirements.

Enquiry reference: BLAZING POWER W-30KL · 30 kVA / 24 kW · Built-in output isolation transformer.

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  • T
    T*n
    Vietnam Jan 15.2026
    ★★★★★
    ★★★★★
    We have cooperated on both standard UPS bulk orders and non-standard customized power solutions. The factory has strong customization capability, flexible production and perfect technical solutions to meet diverse project demands.
  • D
    D*
    Uzbekistan Feb 25.2025
    ★★★★★
    ★★★★★
    As a medical equipment supplier, we purchased 20 sets of 120KVA industrial UPS to support hospital CT equipment operation. The UPS features stable voltage output, strong anti-interference and reliable performance, fully meeting medical power supply standards. Highly recommend BLAZING POWER professional UPS factory.
  • A
    Andre
    Thailand Aug 28.2024
    ★★★★★
    ★★★★★
    We are the Director of Procurement at a medical device company, and we specialize in purchasing their medical UPS systems for use with our equipment. They have a professional technical team that assists with remote installation every time, and we highly commend the quality of their products.
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