AC contactor manufacturer

WEISHO, as a leading manufacturer of AC contactors in the market, not only creates high-quality products with strict processes, but also provides the most competitive prices with its complete supply chain advantages. At the same time, we support OEM manufacturing and personalized customization services to help customers enhance their brand competitiveness and market value.

What are our characteristics

Production technology

Adopting industry-leading manufacturing processes, continuously optimizing production processes, and improving efficiency and accuracy

Customization and OEM/ODM

Supports OEM/ODM services and can provide customized solutions according to your needs, including rated current, brand identification, etc

High performance-price ratio

Efficient production and strong supply chain management ensure high quality and low prices, reducing customer procurement costs

Long term partnership

Putting customers at the center, establishing long-term stable cooperation, and assisting in the growth of customer business.

Customizable AC contactors

Explore our extensive range of customized AC contactors, suitable for diverse electrical control scenarios and professional applications. We provide comprehensive solutions from basic load switching to high-performance intelligent control:

Factory direct sales AC contactor 9A AC220V motor control

For AC contactors 18A AC110V distribution cabinets

AC contactor 40A AC220V automation equipment

AC contactor 80A AC220V heavy-duty motor

A brief introduction

WHY CHOOSE US

Industry-leading testing: Every AC contactor undergoes 100% strict testing in line with international safety standards, ensuring stable switching performance.
High-quality materials: Premium components (e.g., silver alloy contacts, heat-resistant insulation materials) extend service life and guarantee reliable operation.
Engineering innovation: Our R&D team continuously optimizes contactor design (e.g., arc-extinguishing structures, energy-saving coils) to enhance performance and efficiency.
Global certification: Our entire AC contactor series has obtained IEC, CE, UL, and regional safety certifications, meeting global market requirements.
Comprehensive support: We provide full-process services from product selection guidance and installation training to after-sales technical support.

Why choose an AC contactor?

AC contactors are core components in modern electrical control systems, responsible for switching on/off electrical loads. They deliver stable performance across diverse scenarios, ensuring the safety and efficiency of electrical operations. Here’s why AC contactors are the ideal choice for your control needs.

Efficient Overload Protection

AC contactors enable stable control of electrical loads, ensuring safe and efficient on/off operations for circuits.

Advanced Safety Features

AC contactors are equipped with multi-layer safety designs to reduce electrical risks and enhance system stability.

Versatile Applications

Air circuit breakers can be used in various environments and applications, making them a flexible choice for many electrical systems.

Cost-Effective Solution

Investing in air circuit breakers can save a lot of maintenance and replacement costs because they have a longer lifespan.

The advantages of our product

Excellent arc-extinguishing performance

Equipped with efficient arc-extinguishing structures, it quickly suppresses arcs during switching, reduces contact wear, and adapts to frequent operation scenarios.

Intelligent functional support

Compatible with intelligent monitoring systems, supporting remote status monitoring, fault early warning, and improving the efficiency of electrical control management.

Long mechanical service life

Adopts wear-resistant contact materials and optimized structural design, with a mechanical life of over 10 million cycles, far exceeding traditional contactors.

Low maintenance cost

No special medium maintenance is required; the simplified structure reduces routine inspection frequency and lowers operation and maintenance costs.

Strong load adaptation capability

Supports high-current load switching (matching different power requirements) and adapts to various voltage levels, meeting diverse electrical control needs.

Trusted brand guarantee

Obtains ISO, IEC, UL and other authoritative certifications, with global application cases, and provides reliable after-sales technical support.

Get Your Customized Quotation!

We provide customized solutions. Tell us your needs for a precise quote.

Not just an AC contactor manufacturer

We don’t just produce AC contactors—we also offer customized value-added services to meet your project needs. We strive for excellence, ensuring every customer receives personalized attention, professional technical guidance, and seamless support throughout our collaboration.

Technical Consultation

Whether your AC contactor needs are basic applications or complex projects, our team provides professional advice and technical consultation. For high-difficulty projects, we offer in-depth engineering support to select the optimal contactor solutions.

Product Recommendations

Unsure which AC contactor fits your system? Our experts give free customized advice based on your operational and environmental requirements, ensuring the product matches your control needs.

Logistics Support

If you lack a freight forwarder, we arrange factory-to-site transportation at no extra cost. Our logistics team ensures timely, safe delivery to keep your project on schedule.

Installation Guidance

We provide professional installation guidance for AC contactors, including technical support (if needed), to ensure correct deployment and stable performance.

What are our clients saying

Don’t just believe what we say! Take a look at satisfied customers' evaluations of our AC contactors.

“These AC contactors have greatly improved the stability of our motor control systems…”

John Doe

Electrical Engineer

“The AC contactors are user-friendly and highly efficient—they simplify our daily operation…”

Tom Johnson

Industrial Equipment Manager

“We trust these contactors for their durability; they’ve eliminated our concerns about frequent failures…”

James Brown

Electrical Maintenance Technician

“Since switching to these AC contactors, our maintenance costs have dropped, and reliability has been excellent…”

Maria Smith

Facilities Manager

WEISHO employs the most advanced production equipment and precise testing methods at all times, providing a solid guarantee for the company’s product manufacturing and quality inspection.

All products of the entire series have undergone strict environmental and electrical tests.

At the same time, the company has obtained ISO9001 quality management system and ISO14001 environmental management system certifications.

♥Wide selection
♥OEM Quality
♥100% Satisfaction Guarantee

Looking forward to working with you

Your trusted electrical equipment supplier

FAQ

Learn more about AC contactors through these frequently asked questions.

What is an AC contactor?

An AC contactor is an electrical component that controls the on/off of AC circuits (e.g., motors, lighting), using electromagnetic force to drive contact switching.

How do AC contactors work?

When energized, the electromagnetic coil generates a magnetic field to pull the contacts closed, connecting the circuit; when de-energized, the contacts reset (open), disconnecting the circuit.

Why use AC contactors?

They enable remote, frequent switching of high-power loads, protect circuits from overload (with matching accessories), and improve control efficiency.

What are the components of an AC contactor?

Core components: Electromagnetic coil, main contacts (for load circuits), auxiliary contacts (for control circuits), and arc-extinguishing structure.

How often should AC contactors be tested?

Visual inspection: Every 3–6 months (check for contact wear, coil heating);
Performance test: Every 1–2 years (verify switching reliability).

Can AC contactors be used in residential applications?

Yes—small AC contactors are used in home equipment (e.g., air conditioners, water heaters) to control load circuits.

What maintenance do AC contactors require?

Clean contact surfaces (remove oxidation);
Tighten terminal connections;
Replace worn contacts or coils promptly.

Are AC contactors environmentally friendly?

Most are: They use non-toxic materials, have long lifespans (reduce waste), and no harmful emissions during operation.

What sizes do AC contactors come in?

Sizes are matched to load current: Small (≤10A, for household devices), medium (10–100A, for industrial equipment), large (＞100A, for heavy loads).

Do AC contactors have a warranty?

Yes—typically 1–2 years, covering material defects and performance failures under normal use.