What are the available payment terms?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

What is the lead time for production?

The average lead time is within 15 workdays for both peak and off-peak seasons.

Is the product CE certified?

Yes, the product holds CE certification.

Tomzn 4p 250A ATS Dual Power Automatic Transfer Switch

Name: Tomzn 4p 250A ATS Dual Power Automatic Transfer Switch
Brand: Zhejiang Tongzheng Electric Co., Ltd.
SKU: 2229587205

Zhejiang, ChinaZhejiang Tongzheng Electric Co., Ltd.

US$60.40

5 Pieces

Product profile

Customization

Available

Warranty

1 Year

Brand

Tomzn

Model NO.

TOQ5-250/4P

Operation

None

Certification

Type

Moulded Case

Poles

Output type

Dual

Specification

NONE

Trademark

TOMZN

Origin

China

Key features

High Current Capacity: Handles up to 250A with a rated voltage of 400V at 50/60Hz.

Fast Switching Speed: Transition time under 25 seconds ensures minimal power interruption.

Dual Operation Modes: Features both automatic autonomous switching and manual control modes.

Safety Protection: Intelligent design prevents backfeeding for safe operation.

CE Certified: Meets CE safety standards for electrical equipment.

Flexible Customization: Supports full, minor, and sample-based customization options.

OEM/ODM Services: Offers both Original Equipment Manufacturer and Design services.

100% Quality Inspection: All finished products undergo visual and functional testing.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceExperienced Team

Zhejiang Tongzheng Electric Co., Ltd.

Zhejiang, 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: 10 Years CertifiedNearest Port: Ningbo port, shanghai portAverage Response Time: ≤10.86h

About Our Factory & Business Background

AddressNo. 11 Xinhe Road, Huabei Village, Liushi Town, Leqing City, Wenzhou, Zhejiang, China

Plant Area3000 square meters

Number of Employees80

Registered Capital21,000,000 RMB

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

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

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

Minimum Order Quantity100 pcs

Supply Chain Partners30

Our Production Capability & Technical Expertise

Main ProductsCircuit Breaker, Fuse, Automatic Transfer Switching, Voltage Meter, Photovoltaic combiner box, Surge protective devices

Production Lines4

Production MachinesInjection molding machine, Printing machine1, Printing machine2, Laser marking machine, Assembly line

QA/QC inspectors6 people

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

Inspection Method for Finished ProductsHave instructions and uniformly followed

R&D Engineers5 people

Traceability of Raw MaterialsYes

Own BrandYes

Our Industry Experience & Global Business Record

Year of Establishment2002-04-19

Main MarketsSouth America, Europe, Southeast Asia/ Mideast, South Asia

Repeat Buyers Choice80%~100%

Number of Foreign Trading Staff7

Overseas Agent/BranchNo

New Products Launched in Last yearYes

Our Certifications, Standards & Industry Recognition

Management System CertificationISO9001:2015, ISO45001:2018, ISO14001

Product CertificationCE

Cooperated with Fortune 500No

Product Q&A

Q:What is the rated voltage and current capacity?

The switch supports a rated voltage of 400V and handles current up to 250A.

Q:How long does the switching process take?

The transition time is under 25 seconds, ensuring a brief power interruption.

Q:Does this switch start and stop the generator?

No, the device functions strictly as a transfer mechanism and does not include generator start/stop capabilities.

Q:What customization options are available?

We offer full customization, minor customization, and customization from samples or designs.

Q:What is the minimum order quantity?

The minimum order quantity is 100 pieces.

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