ISO9001 / IATF16949/ ISO14001 etc

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UnionwellChina Professional Hermetically Sealed Switch Manufacturer

With 20 years of industry experience, we specialize in the production of hermetically sealed switches, using advanced technology and state-of-the-art equipment. Our professional technical team ensures precision manufacturing and consistent high-quality products, making Unionwell micro switch factory a trusted choice for global manufacturers seeking reliable switch solutions.

Our hermetically sealed switches are designed with durable silicone seals, lightweight and compact structure, without compromising performance. With excellent sealing performance and long-lasting durability, our products are often used as sealed switches for automotive and industrial equipment controls to ensure optimal functionality and reliability.

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waterproof micro switch G9
UNIONWELL

High Precision Hermetically Sealed Switch

We offer a wide range of sealed switches to suit a variety of application needs. Our G3 Series is designed for automotive systems, while our G11 and G12 hermetically sealed limit switch Series excel in industrial control applications. For home appliances, the G5W11 Series offers reliable and durable performance. Sealed switches provide quality switching for automotive applications, industrial equipment, and home appliances.

Unionwell sealed switches offer excellent performance and can operate stably even in extreme temperatures from -40°C to +85°C. We offer customizable actuator stems and a full range of terminal types to meet unique customer needs. Our switches are durable, with a service life of more than 100,000 times and an IP67 protection rating, and are widely used
Hermetically Sealed Subminiature Micro Switch

G3
Hermetically  Sealed Subminiature Micro Switch

IP67 protection level, commonly used for car hood locks, door locks control, operating handles and terminal models are complete
waterproof-and-dustproof-sealed-basic-micro-switch-g5w11-wc200a05-w2-t029u-1

G5W11
Waterproof and Dustproof Sealed Basic Micro Switch

The internal sealed switch is waterproof and dustproof, and has long durability, reducing the number of replacements.
waterproof-and-dustproof-dpdt-limit-micro-switch-g11-35001d01e1110u-1

G11
Waterproof and Dustproof DPDT Limit Micro Switch

Waterproof and Dustproof DPDT limit switch, good sealing performance, with reliable performance.
Hermetically Sealed Limit Switch

G12
Hermetically Sealed Limit Switch

Hermetically Sealed Limit Switches are commonly used in industrial control equipment due to their reliability and accuracy.

Hermetically Sealed Limit Switch Parameter | G3 Series

The parameters in the table below are based on the G3 series Hermetically Sealed micro Switch as an example. For parameters of other models, please refer to the following technical documents
Parameter Specification
Model G303R-130E00B48-FA200-TA404
Rated Current/Voltage 0.1 A @ 125/250 VAC; 3 A @ 12 VDC; 0.1 A @ 48 VDC
Electrical Frequency 0.1 A: 120 cycles/min; 3 A: 10–30 cycles/min
Mechanical Frequency 120 cycles/min
Contact Resistance ≤ 100 mΩ (initial, without wire)
Insulation Resistance ≥ 100 MΩ @ 500 VDC
Dielectric Strength 500 VAC (50–60 Hz)
Vibration Resistance 10–55 Hz, amplitude 0.75 mm (double amplitude)
Operating Temperature –40 ℃ to +85 ℃
Operating Humidity Up to 85% RH
Electrical Life ≥ 100,000 cycles (depending on load)
Mechanical Life ≥ 500,000 cycles
Structure With built-in resistor, sealed design
Protection Rating IP67 (waterproof and dustproof)
Certifications ISO9001, IATF16949, ISO14001

Download Data Sheet of Sealed Micro Switch

  • FD-6100 Specs.pdf

    Sealed Subminiature Micro Switch - G303 Series PDF

    Download

  • FD-6100 Specs.pdf

    Sealed Subminiature Micro Switch - G303AB Series PDF

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  • FD-6100 Specs.pdf

    Sealed Clip Type Subminiature Micro Switch - G304A Series PDF

    Download

  • FD-6100 Specs.pdf

    Sealed Clip Type Subminiature Micro Switch - G304B Series PDF

    Download

  • FD-6100 Specs.pdf

    Slide Structure Sealed Subminiature Micro Switch - G304D Series PDF

    Download

  • FD-6100 Specs.pdf

    Sealed Clip Type Subminiature Micro Switch - G304E Series PDF

    Download

  • FD-6100 Specs.pdf

    Sealed Clip Type Subminiature Micro Switch - G304F Series PDF

    Download

  • FD-6100 Specs.pdf

    Sealed Clip Type Subminiature Micro Switch - G304G Series PDF

    Download

  • FD-6100 Specs.pdf

    Waterproof Subminiature Micro Switch - G305 Series PDF

    Download

  • FD-6100 Specs.pdf

    Sealed Clip Type Subminiature Micro Switch - G306 Series PDF

    Download

  • FD-6100 Specs.pdf

    Sealed Dual Loop Subminiature Micro Switch - G307A Series PDF

    Download

  • FD-6100 Specs.pdf

    Sealed Triple Loop Subminiature Micro Switch - G307B Series PDF

    Download

  • FD-6100 Specs.pdf

    Sealed Clip Type Subminiature Micro Switch - G309 Series PDF

    Download

  • FDM-615PTM Specs.pdf

    Sealed Basic Micro Switch - G5W11 Series PDF

    Download

  • FIM-2450 Specs.pdf

    Waterproof and Dustproof DPDT Limit Micro Switch - G11 Series PDF

    Download

  • FIP-2405 Specs.pdf

    Hermetically Sealed Limit Switch - G12 Series PDF

    Download

Features of Hermetically Sealed Switch

Unionwell's sealed switches stand out for their unique performance, with high precision ensuring precise and reliable performance in critical applications. They have excellent durability and can withstand more than 100,000 cycles, making them a long-lasting solution for harsh environments. With an IP67 protection rating, these switches have excellent dust and water resistance, ensuring optimal functionality in harsh conditions. In addition, our products meet global safety certifications to ensure compliance with international quality standards.


micro switch manufacturer-Unionwell RK

High sensitivity

Our sealed switches are designed for precision, with a maximum operating force of 150gf, ensuring sensitive and accurate operation in every application.
micro switches suppliers

Excellent durability

Our sealed switches have a service life of more than 100,000 times, providing reliable long-term functionality even in harsh environments.
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IP67 protection

Our switches adopt an excellent sealing design, which is tightly sealed and completely waterproof and dustproof, making them ideal for harsh outdoor conditions.
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certification

Our products meet international safety standards, including certifications such as UL, cUL and ISO, which ensures quality and compliance in the global market.

Sealed Micro Switch Custom Production Process

01

Design and Prototyping

After determining customer needs and functions, our engineers develop customized sealed micro switches according to customer specifications to propose the best solution. 3D drawings and specifications are issued before starting production.
02

Sample Confirmation

Before mass production, we will provide free samples to customers for testing. Parameters are adjusted based on feedback information to determine the production template.
03

Mass Production

Our factory adopts fully automatic production and components are carefully assembled using advanced machinery to ensure minimal errors and high efficiency, which can cope with various mass production.
04

Sealing Processing

The sealing process is critical. We use industry-leading sealing technology, with a silicone seal on the top and a glue potting technology on the bottom. Ensure that the switch is protected from environmental factors such as dust and water, and meets IP67 standards.
05

Strict Testing

Each sealed micro switch undergoes strict quality control tests, including functional testing, sealing integrity inspection, and durability testing.
06

Packaging and Delivery

After the quality test is completed, the switch is carefully packaged to prevent damage during transportation. We ensure all orders are delivered on time and fully tracked to guarantee safe arrival.
amdtec-customization

Application

Unionwell hermetically sealed switch has a wide range of applications and features high quality and reliable performance. Please feel free to contact us for any information you require.

Home Appliances
02

Home Appliances
Automotive Industry
03

Automotive Micro Switch
Industrial Equipment
03

Industrial Equipment
010203

Our Certification

45
44
43
42
41
0102030405
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6579a0f2da47543192 6579a0f26da4684101
6579a0f34a56821986

FAQ

  • 1

    Can you provide good wholesale prices for sealed switches?

    Of course. Contact us to get the best quote and relevant product information (including drawings, samples, etc.).

  • 2

    Can I customize the design of the sealed switch for my application?

    Yes, we offer full customization options for sealed switches, including custom actuators, terminals, and sealing materials. Our team will work closely with you to create the perfect solution for your needs.

  • 3

    Which industries use sealed switches and what are their benefits?

    Delivery times for bulk orders may vary depending on custom requirements and order volume. Generally within one week for switches in stock, 7-14 days if custom or in larger quantities. We maintain communication throughout the process to keep you informed of the estimated time of arrival.

  • 4

    What is the expected service life of your sealed switches?

    Our sealed switches are designed to be rugged and durable, with an expected service life of more than 100,000 times, even in extreme environmental conditions, making them a reliable choice for long-term use.

  • 5

    What certifications do your sealed switches have?

    We offer flexible wholesale and custom orders with flexible minimum order quantities based on different series. Whether you need small quantities or large-scale production, we can meet your order size and provide competitive prices.

hermetically sealed limit switch dimensions | G3 series

The G3 series hermetically sealed micro switch adopts a molded sealing structure with excellent dust and water resistance, and is widely used in harsh industrial and outdoor environments. The switch body is compact (8.3mm × 6.9mm), with a 2.10mm micro drive column on the top and a double-ended pin layout at the bottom for easy PCB installation and quick integration.

The hermetic sealed limit switch uses a highly elastic metal actuator and a precision spring structure, with fast response and stable reset characteristics. The electrical contact area is treated with a special sealing process to achieve internal airtight sealing, effectively resisting the penetration of moisture, oil mist and corrosive media. It is suitable for direct welding, plug-in or connector terminals, and can meet the high requirements of sensor modules, smart actuators, and sealed control units for reliable micro-action feedback.
If you are interested in this G3hermetically sealed micro switch, please click the link to view the detailed introduction. Welcome to contact Unionwell by clicking the button below, leave your needs and contact information, and we will provide you with the most suitable product model and free samples!
Leave your Hermetically Sealed Switching Needs
G304-hermetically-sealed-limit-switch

Customized solutions for Hermetically Sealed micro switches

In special working conditions or customized projects, the selection of a suitable hermetically sealed limit switch is not only related to product compatibility, but also directly affects the long-term stable operation of the system. Engineers should focus on confirming the following technical parameters before customization:

  • IInstallation interface: Whether the switch body size, tolerance range and installation hole position are accurately matched with the mechanical structure
  • Contact structure: Select SPDT, DPDT and other multi-channel control forms according to control requirements
  • Action characteristics: Including the operating force, reset force and action stroke accuracy required for driving
  • Sealing structure: Glass sealing, laser welding, threaded structure, etc.,
  • Shell material: 304 stainless steel or aluminum alloy, selected according to the corrosion resistance and anti-magnetic requirements of the use environment
  • Electrical parameters: rated voltage, current and inductive or resistive load characteristics to ensure electrical matching and safety margin

If you are not sure which micro switches to buy, you can describe your needs and application scenarios, and our sales staff will provide you with the most suitable suggestions and solutions.

Customized Car Door Switches
Customized solutions for automotive micro switches
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