Do you have after sales service?

Yes, we have the after-sales service team. Our after-sales engineer Can give the support and instruction by video or phone call while needed.

Do you make the test after finishing production?

Yes, our production engineer team will do the test while goods finished, and we will prvoide the test info to clients for reference before delivery.

4kw Switching Mode AC to DC Adjustable DC Power Supply

Name: 4kw Switching Mode AC to DC Adjustable DC Power Supply
Brand: Zhonghe New Energy Electrical Engineering (Qingdao) Co. Ltd
SKU: 2116282345

Shandong, ChinaZhonghe New Energy Electrical Engineering (Qingdao) Co. Ltd

US$2,699.00-3,299.00

1 Piece

Product profile

Customization

Available

Output Type

Single

Warranty

2 Years

Model NO.

GZDWK

Output Power

4kw

Input Voltage

110-220V

Connection Mode

Parallel Switching Power Supply

Starting Mode

Self-excited Switching Power Supply

Voltage Regulating Mode

Depends on Input Voltage

Power Supplying System

Terminal Power Distribution Equipment

Energy Transmission

One-way Transmission

Modulation System

12 Phases Full-Wave Rectification

Certification

ISO, CCC

Brand

Zhonghe

Rated Voltage

220V

Rated Power

4kw

Power Factor

Min 0.95

Efficiency

> 99%

Transport Package

Plywood Box

Specification

550*290*240

Trademark

ZHONGHE

Origin

Qingdao, China

HS Code

8504401990

Production Capacity

800/Month

Key features

2-Year Warranty: Comprehensive 2-year warranty coverage for all clients.

OEM and ODM Support: Professional customized service available since 2004.

High Efficiency: Efficiency exceeds 99% with a power factor of at least 0.95.

Continuous Voltage Adjustment: Output voltage ranges from 0V to 110VDC continuously.

IP54 Protection Grade: Dust and water resistant design suitable for industrial use.

ISO and CCC Certified: Product meets international and Chinese safety standards.

Factory Direct Sales: Direct from manufacturer with over 20 years of experience.

Company profile

High Repeat Buyers ChoiceCooperated with Fortune 500QA/QC InspectorsR&D Capabilities

Zhonghe New Energy Electrical Engineering (Qingdao) Co. Ltd

Shandong, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2023-06-06Nearest Port: QINGDAOAverage Response Time: ≤15hTerms of Payment: LC, T/T, Western UnionInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, CIP

AI-Powered supplier vetting

SummaryThe supplier operates in power transmission, distribution, control, rail transit, battery, generator, and new-energy equipment, while its company type is identified as a trading company. It reports two production lines, specified output across DC power systems, traction rectifiers, DC switchgear, and EV chargers, and a factory location in Qingdao. R&D evidence includes recent new products, ODM services, SDK availability, and customization from samples or designs. Quality processes include assurance, raw-material traceability, documented inspections, complaint handling, and corrective-action procedures. Service procedures and approved-supplier controls are documented, with an off-season lead time of one month. The provided slices do not establish certifications, financial strength, or identifiable customer cases; OEM service for well-known brands is reported but no customer names or case details are supplied.

Supplier typeThe supplier’s stated scope covers manufacturing and sales of power, distribution-control, rail-transit, battery, generator, and new-energy equipment. However, its company nature is explicitly identified as a trading company, indicating a mixed trading and manufacturing profile rather than a purely manufacturing entity.

After-Sales capabilityThe supplier reports documented procedures and records for service-capability assessment, corrective and preventive actions, customer complaint handling, and quality-control records. These controls support service management, but the slices do not provide direct evidence of service staffing, response performance, or customer satisfaction.

R&D capabilityThe supplier reports new products within the past year, ODM services, available SDK support, and R&D of emerging energy technologies. Its scope also includes new-energy dynamic equipment manufacturing, providing explicit evidence of product-development activity.

Production capacityThe supplier reports two production lines and specified output of 300 DC power systems, 200 traction rectifiers, 200 DC switchgear units, and 8,000 EV chargers. It also lists manufacturing activities across power equipment, batteries, generators, and new-energy equipment, although capacity adequacy for a specific order is not established.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. ODM availability and design-service capability further support a broad customization offering.

Product Q&A

Q:Are you the factory or trading company?

We are factory with more than 20 years in the field of DC power supply solution, traction power supply and new energies. We warmly welcome you for the visit.

Q:How is the delivery time?

Generally, the delivery time between 7-30 days after getting client's payment. For accurate info depends on the products and the quantity, we can make further communication on this.

Q:Do you have MOQ requirements?

MOQ is 1 set for most of the products, only MOQ for 7KW, 11KW, 22KW ev charger is 10 sets.

Q:How long is your warranty time?

We provide 2 years warranty for our clients.

Q:Can you provide customized service?

Yes. we have been getting involved with the OEM and ODM projects since 2004. So that we can provide professional customized service for our clients.