China Customized Switch Manufacturers Suppliers Factory - Wholesale Service

Your Professional Switch Supplier！

Ningbo Liming Relay, located at No. 986 Zhongguan Road, Jiaochuan Street, Zhenhai District, Ningbo City, Zhejiang Province, was established in 1996. It covers an area of 13.7 mu and has over 200 frontline workers, 15 technical R&D personnel, 22 sales staff, and a 10-member e-commerce team. The company mainly engages in the design, development, and sales of relays, switch components, winch accessories, automotive modification parts, outdoor off-road, and rescue and recovery series products.

Automotive General Power Switch
This Automotive General Power Switch is a versatile electrical component designed to meet the diverse control needs of automotive systems. It integrates ‌robust mechanical construction‌ with

view more
Two-pedal Auto Switch
This two-pin automotive switch is a compact, reliable component designed to meet the control needs of automotive electrical systems. It combines ‌robust construction‌ with ‌precise electrical

view more
Miniature Roker Switch
This Rocker Switch‌ is a compact and reliable electrical control component, designed to meet the needs of various applications in automotive, marine, and industrial sectors. Below is a comprehensive

view more
Momentary Toggle Switch
This ‌rocker switch (toggle switch)‌ is a compact and reliable manual control component, designed to meet the needs of various applications in automotive, marine, and industrial sectors. Below is a

view more
Boat Rocker Switch
This ‌rocker switch with illuminated button‌ is a versatile and reliable electrical control component, designed to meet the needs of various industrial and commercial applications.

view more

Why Choose Us

Rich Experience

Founded in 1996, It covers an area of 13.7 mu and has over 200 frontline workers, 15 technical R&D personnel, 22 sales staff, and a 10-member e-commerce team.

Advanced Equipment

The company operates automated assembly and testing equipment, including relay automatic testers, laser marking machines, and automated assembly lines. These systems help ensure stable production processes and reliable product consistency.

Sales Market

Our products are exported to Europe, North America, Australia, Japan, South Korea, and other global markets. Years of cooperation with international customers have helped us understand the quality, documentation, and service expectations of overseas buyers.

Overview of Switch

A switch is an electrical component that can disconnect or connect the conducting path in an electrical circuit, interrupting the electric current or diverting it from one conductor to another. The most common type of switch is an electromechanical device consisting of one or more sets of movable electrical contacts connected to external circuits. When a pair of contacts is touching, current can pass between them, while the contacts are separated no current can flow.

Product features

We offers the following product introduce:

Automotive General Power Switch

Structural Design & Durability: The switch features a sturdy black plastic housing that provides excellent protection against dust, moisture, and mechanical impacts. The gold-plated metal contacts ensure low resistance and long-term reliability, even under frequent use. The ergonomic knob design allows for smooth, precise operation, minimizing wear and tear.

Functional Versatility: This switch is compatible with a wide range of automotive applications, including: ‌Lighting Control‌: Manage headlights, taillights, turn signals, and other lighting circuits. ‌Electrical Equipment‌: Operate windshield wipers, power windows, and other electrical systems. ‌Customization‌: Available in various configurations (e.g., single-pole, double-pole) to suit different circuit requirements.

Two-pedal Auto Switch

Miniature Roker Switch

Design and Structure: The switch adopts a sleek, ergonomic design with a black plastic housing that ensures durability and resistance to environmental factors. Its "ship shape" form factor not only enhances visual appeal but also optimizes ergonomics for easy operation. The metallic contacts at the bottom are robust and designed to handle high currents and voltages, ensuring stable electrical performance.

Current Rating‌: 35A (Ampere): This high current capacity makes it suitable for controlling powerful electrical loads, such as motors, lights, or other high - power devices. ‌Voltage Rating‌: 12V DC (Direct Current) - It is specifically designed for DC circuits, making it ideal for applications in vehicles, marine vessels, or other DC - powered systems. ‌

Common types

SPST-NO (Single Pole Single Throw Normally Open)

The contacts close when the switch is operated. They are normally open.

SPST-NC (Single Pole Single Throw Normally Closed)

The contacts open when the switch is operated. They are normally closed.

SPDT (Single Pole Double Throw)

Changeover contacts have the functions of the both NO and NC contacts.

Application Scenarios

Automotive Industry

It can control car accessories such as fog lights, auxiliary lights, or other electrical systems. Its compact size and high current capacity make it a perfect fit for vehicle - mounted applications.

Marine Sector

In marine vessels, it is used to control lighting, pumps, or other electrical equipment. Its durability and ability to handle DC circuits make it suitable for the harsh marine environment.

Industrial Equipment

It can be integrated into industrial control panels, machinery, or other equipment to manage electrical circuits. Its reliable performance ensures smooth operation in industrial settings.

Customization Process

Requirement Discussion

Design Proposal

Our professional team will develop a design proposal and provide a quotation based on your requirements.

Sample Production

We produce samples according to the design proposal and conduct rigorous testing.

Mass Production

Upon your approval, we commence mass production to ensure timely delivery and consistent quality.

After-Sales Service

We offer ongoing technical support and service to ensure the long-term stable operation of our products.

Other Services

All of our machines will be fully checked by our quality control department before the shipment.

We guarantee all of our laser machines have a one-year warranty (quick-wear parts not included).

Training details: Operation principles, system, and structure, safety and maintenance, software processing technique, etc.

Numerous feedback from our clients have proven that our laser machines are stable in performance with rare malfunction. However, we would like to handle it as follows once malfunction occurs:

•We guarantee that we will give you a clear reply within 24 hours.

•Customer service staff will assist you in analyzing the malfunction to locate the cause.

•If the malfunction is caused by improper operation of software and other soft faults, we will help solve the problem online.

•We will offer plenty of online support, like detailed technical and installation instructions via email, video, and telephone.

Package & Delivery

Package: Standard export package or Custom.
Delivery: By air express, by sea.

productcate-1-1

FAQ

Q: What is a switch in a vehicle or winch system?

A: A switch is an electrical control device used to open or close a circuit, allowing the operator to control power flow to a specific component, such as a winch, lights, or other accessories.

Q: What types of switches are commonly used in winch systems?

A: Common types include rocker switches, toggle switches, push-button switches, and wireless remote switches. The choice depends on the application, user preference, and system design.

Q: How do I choose the right switch for my application?

A: Key factors include voltage rating (typically 12V or 24V), current capacity, environmental protection (such as waterproofing), mounting style, and compatibility with the existing wiring system.

Q: What is the difference between a momentary switch and a maintained switch?

A: A momentary switch only stays active while it is being pressed, making it suitable for winch control. A maintained switch stays in its position after being toggled, commonly used for lighting or auxiliary systems.

Q: Are waterproof switches necessary for off-road use?

A: Yes. For off-road, marine, or outdoor applications, waterproof or weather-resistant switches are highly recommended to ensure reliable operation in wet, dusty, or muddy conditions.

Q: What safety features should a high-quality switch have?

A: A high-quality switch should offer stable electrical contact, proper insulation, heat resistance, and protection against short circuits or overload. Clear labeling and ergonomic design also improve safe operation.

Q: Can a switch directly handle high current loads?

A: Not always. Many switches are designed to control relays or solenoids rather than carry high current directly. Using a relay or contactor helps protect the switch and ensures safe system operation.

Q: How difficult is it to install an automotive switch?

A: Installation is generally straightforward for users familiar with basic wiring. It involves connecting the switch to the power source, load, and ground according to the wiring diagram. Proper insulation and secure connections are essential.

Q: What materials are used in durable switches?

A: Durable switches are typically made with high-quality plastics, copper or alloy contacts, and corrosion-resistant terminals. These materials ensure long service life and reliable electrical performance.

Q: What should buyers consider when sourcing switches in bulk?

A: Buyers should evaluate electrical ratings, durability, environmental protection (IP rating), certification standards, and consistency in production quality. Suppliers offering clear specifications, testing data, and customization options are generally preferred.

Q: Are you manufacturer or trading company?

A: We are manufacturer.

Q: What's your best delivery time?

A: Within 15-30 days.

Q: What is the quality control of your product?

A: Follow strictly quality control measures for implementation.

Q: Will your company provide free sample?

A: It depends on which sort of item you want to get. Some can be provided free of charge, however, the client shall assume the shipping fees himself.

Q: What is the payment of sample?

A: T/T and Alipay both acceptable.

Q: What is your packing?

A: Yes, our packaging is genuine original packaging. Of course, we can also provide neutral packaging or according to your requirements.

Q: Have you tested all your goods before shipment?

A: Yes, we will conduct 100% test before delivery, and we will send detailed photos of parts for your approval.

We're well-known as one of the leading switch manufacturers and suppliers in China, also support customized service. With a professional production team, we are able to meet the needs of the majority of our customers. Please rest assured to wholesale high quality switch in stock here from our factory.