What is the minimum order quantity (MOQ)?

The Minimum Order Quantity is 1 unit.

Three-Phase 3kVA-500kVA Variable Frequency Power Supply 3∅ 4W+G IGBT/PWM DPF-33250

Name: Three-Phase 3kVA-500kVA Variable Frequency Power Supply 3∅ 4W+G IGBT/PWM DPF-33250
Brand: Shanghai Wenlida Technology Co., Ltd.
SKU: 786646472

Shanghai, ChinaShanghai Wenlida Technology Co., Ltd.

US$200.00-60,000.00

1 Piece

Product profile

Customization

Available

Application

High Frequency Converter Transducer

Output Type

Triple

Model NO.

DPF-33250

Principle of Work

PLC Control

Switch Mode

IGBT or PWM

Main Circuit Type

Voltage

Voltage of Power Supply

High Voltage Variable-Frequency Drive

Link of Transformation

AC-DC-AC Variable-Frequency Drive

Nature of DC Power

Voltage Variable-Frequency Drive

Function

Provide Continuous,Pure,Stable Sinusoidal Voltage

Brand

Wenlida

Output Frequency

25-1000Hz Continuously Adjustable

Input Frequency

0-1000V Continuously Adjustable

Voltage Regulating Mode

PWM or IGBT

Load Stability Rate

≤±1%(Pure Resistive Load)

Frequency Stability Rate

≤±0.01%

Distortion Rate

Thd≤±2%(Pure Resistive Load)

Peak Factor Ratio

3:1

Efficiency

≥85%

Reaction Time

≤2ms

Isolation Resistance

500VDC/200mΩ

Stand Voltage Insulation

1800VAC/5mA/1min

Cooling Mode

Forced Fan Cooling

Noise

Less Than 60dB at 1m

Transport Package

Wooden Case

Trademark

WENLIDA

Origin

China

HS Code

85044019

Production Capacity

20000PCS/M

Key features

Wide Frequency Range: Output frequency continuously adjustable from 25Hz to 1000Hz with optional 100Hz-400Hz.

High Overload Capacity: Supports 300% overload capacity to meet starting requirements of impact loads.

Advanced IGBT/PWM Tech: Utilizes IGBT/PWM mode for high stability output and low disturbance waveforms.

Comprehensive Protection: Features overload, short circuit, over voltage, over temperature, and self-diagnosis.

Flexible Customization: Offers full customization, minor customization, and customization from samples/designs.

Slow Start Function: Reduces starting current for transformers, compressors, and motors to save power.

Company profile

Importers and ExportersManagement Certification

Shanghai Wenlida Technology Co., Ltd.

Shanghai, 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: 13 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤24h

AI-Powered supplier vetting

SummaryShanghai Wenlida Technology Co., Ltd. is a manufacturer and seller of regulated power supplies, voltage stabilizers, EPS emergency power supplies, harmonic suppressors, automatic doors, and related electrical and control equipment. It reports raw-material traceability, 100% finished-product inspection, ISO9001:2015, ISO14001, and ISO45001:2018 certifications, as well as written procedures for supplier service assessment, corrective actions, and complaint handling. The supplier offers extensive customization and OEM services, has five R&D engineers, and holds one national science and technology progress award, but reports no SDK availability and no new products launched in the previous year. Production-related information indicates a stabilizer production base and supporting testing and production lines, although capacity figures are not provided. Overseas service infrastructure is limited: no overseas warehouse, showroom, agent, branch, or offline trade-show participation is reported. Customer evidence...

Supplier typeThe supplier is identified as a modern enterprise integrating R&D, production, and sales of regulated power supplies, EPS systems, harmonic suppressors, voltage stabilizers, automatic doors, and related electrical and control equipment. Its stated business scope also includes import and export of goods and technologies, supporting classification as a manufacturer with integrated commercial activities.

CertificationsThe supplier reports ISO9001:2015, ISO14001, and ISO45001:2018 management-system certificates. These are explicit certifications covering quality, environmental, and occupational health and safety management.

Production capacityThe supplier describes integrated R&D and production, a large stabilizer production base, ancillary professional testing and supporting production lines, and complete plant processing. It also reports raw-material traceability and 100% finished-product inspection, but provides no quantitative production capacity, making the overall production advantage supported qualitatively rather than fully measurable.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization, and also reports OEM capability for recognized brands. These statements directly support broad customization and OEM capability.

Client casesThe supplier reports providing OEM services for recognized brands and a repeat-buyer preference of 50%–80%. It also reports no cooperation with Fortune 500 companies; named customer cases, project details, and independently verifiable references are not provided.

Product Q&A

Q:What is the output frequency range?

The output frequency is continuously adjustable from 25Hz to 1000Hz. Optional frequencies include 100Hz, 120Hz, 200Hz, and 400Hz.

Q:What is the maximum overload capacity?

The device has a 300% overload capacity to meet the starting requirements of impact loads. Specific delays are 120% for 600s, 150% for 60s, and 200% for 1s.

Q:Is customization available for this power supply?

Yes, we offer full customization, minor customization, customization from samples, and customization from designs.

Q:What protection functions are included?

It includes overload, output short circuit, input open circuit, over temperature, over voltage, over/under frequency, output phase sequence, back EMF, self-diagnosis, and alarm devices.

Q:What are the payment terms and lead time?

Payment terms include LC, T/T, D/P, PayPal, Western Union, and small-amount payment. The average lead time is one month for both peak and off-season.