What communication interfaces are available?

Standard RS232 & RS485. SNMP network monitoring card is optional for remote monitoring.

What protection functions does the UPS have?

Equipped with overload, overvoltage, undervoltage, short circuit, over temperature, phase loss multi-protection.

What is your warranty term?

1-year warranty for the whole machine. We provide lifelong technical support.

Can this UPS run with 100% unbalanced three-phase load?

Yes, three-phase independent modulation design, stable operation under 100% unbalanced load condition.

What is the packing and shipping way?

Packed in solid wooden case. We support FOB, CFR, CIF, DDP trade terms.

400kVA Three Phase Online Double Conversion UPS with Pure Sine Wave Output

Name: 400kVA Three Phase Online Double Conversion UPS with Pure Sine Wave Output
Brand: Shenzhen Feixiangda Electronic Co., Ltd.
SKU: 2004291311

Guangdong, ChinaShenzhen Feixiangda Electronic Co., Ltd.

US$31,818.00

1-9 Pieces

US$27,273.00

10-49 Pieces

US$25,000.00

50-99 Pieces

US$22,728.00

100+ Pieces

Product specifications

Capacity

Sample price:US$35000.00/piece.Request sample

Product profile

Customization

Available

Phase

Three Phase

Type

On-line

Model NO.

FXD-400KVA 3/3

Protection

Overload,Over Voltage, Under Voltage, Short Circui

Application

Industry

Classification

Lighting/Power

Standby Time

Long-acting Machine

Standby UPS

Sine Wave Output UPS

Output Capacity

Large Type

Equipment Mode

Centralized Model

Brand

Feixiangda

Power Factor

0.8

Topology

Low Frequency Online UPS / Witth Isolation Transfo

Rated Capacity

400kVA / 320kw

Input Voltage

380VAC ±25%

Output Waveform

Pure Sine Wave

Communication Port

RS232, RS485, Snmp (Optional)

Parallel Function

Support N+1 Parallel Redundancy

Cooling

Temperature Controlled Forced Air Cooling

Working Temperature

0 ~ 40℃

Warranty

1 Year

Transport Package

Wooden Case

Specification

1300*1000*1900MM, 1800KG

Trademark

FEIXIANGDA

Origin

China

HS Code

8504402000

Production Capacity

30000 Units/Year

Key features

Online Double Conversion: Continuous inverter output for critical loads.

0ms Transfer Time: Seamless inverter-to-bypass transfer under synchronized conditions.

Built-in Isolation Transformer: Helps isolate electrical disturbances and protect connected equipment.

100% Unbalanced Load Capability: Supports uneven loading across three phases.

Wide Input Voltage Range: 380VAC +-25%, subject to model configuration.

Parallel Redundancy: Supports N+1 parallel operation for system expansion and reliability.

Company profile

High Repeat Buyers ChoiceLow MOQ100% Finished Products InspectionProduct Certification

Shenzhen Feixiangda Electronic Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 19 Years CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤0.03h

About Our Factory & Business Background

AddressBuilding 2, No. 49, Fenghuang 2nd Road, Humen Town, Dongguan, Guangdong, China

Plant Area5000 square meters

Number of Employees59

Registered Capital5,000,000 RMB

Terms of PaymentLC, T/T, D/P, PayPal, Western Union, Small-amount payment

International Commercial Terms(Incoterms)FOB, CIF, CFR, EXW

Average Lead TimePeak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays

Minimum Order Quantity1 Piece

Supply Chain Partners12

Our Production Capability & Technical Expertise

Main ProductsLow Frequency UPS, High Frequency UPS, AC Voltage Stabilizer AVR, Dry Type Transformer, Stabilizer Transformer Integrated Unit, Variable Frequency Power Supply, Voltage Regulator, Oil Immersed Voltage Stabilizer

Production Lines4

Production MachinesCutter, Bending Machine, Welding machine, Winding machine

QA/QC inspectors2 people

Inspection Type for Finished Products100% inspection(Visual inspection & Function inspection)

Inspection Method for Finished ProductsHave instruction but no written records

R&D Engineers3 people

Traceability of Raw MaterialsNo

Own BrandYes

Our Industry Experience & Global Business Record

Year of Establishment2006-12-12

Main MarketsDomestic

Repeat Buyers Choice50%~80%

Number of Foreign Trading Staff4

Overseas Agent/BranchNo

New Products Launched in Last yearYes

Our Certifications, Standards & Industry Recognition

Product CertificationCE

Cooperated with Fortune 500No

Product Q&A

Q:Is this 400KVA UPS low frequency online type?

Yes. It is 3-phase low frequency online double-conversion UPS, built with internal output isolation transformer, strong anti-surge capability for heavy industrial loads.

Q:What is the actual active power of 400KVA UPS?

Rated capacity 400KVA, power factor 0.8, active power is 320KW.

Q:Does this UPS support N+1 parallel redundancy?

Yes, it supports standalone, 1+1 or N+1 multi-units parallel connection, easy capacity expansion and improve power supply reliability.

Q:What is the input voltage range? Can it work with unstable grid?

Input voltage 380VAC +-25%. It works stably under large mains fluctuation, perfect for poor power grid areas.

Q:Is it long backup model with external batteries?

Yes, this is long-acting machine, batteries are sold separately. Backup time depends on your battery configuration.