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UnionwellProfessional waterproof micro Limit switch manufacturer
waterproof limit micro switch type
Waterproof Micro Limit Switch Structurer
Parameter
| Rating | P1 | 0.1A 125VAC/250VAC,0.1A 30VDC |
| 05 | 5(2)A 125/250VAC,5A 30VDC | |
| Operating Frequency | Electrical | 0.1A,120 cycles/min 3A,10~30 cycles/min |
| Mechanical | 120 cycles/min | |
| Contact Resistance (Initiative) | with terminals type | ≤100mΩ |
| with wire type | ≤200mΩ(500mm wires length) | |
| Insulation Resistance (at 500VDC) | 100MΩ Min. | |
| Volatage Resistance | Between terminals | 500VAC(50~60Hz,1min) |
| Between terminals and uncharged metal parts | AC 1,000V,(50~60Hz,1min) | |
| Service Life | Electrical | 50,000 cycles |
| Mechanical | 200,000cycles(IP67) 200,000cycles(IP40) | |
| Operating Temperature | -40℃~+85℃ | |
| Operating Humidity | 95%RH Max | |
Application of waterproof micro limit switch in door control emergency valve
The waterproof micro limit switch is widely used, and the most famous one is the emergency control system of the automotive safety valve. Under normal conditions, the cam presses on the normally closed waterproof micro switch contacts to keep the door cylinder solenoid valve de-energized. However, when an emergency occurs, the air pipe is damaged and the door cannot be opened.
Once an emergency occurs, the passenger turns the external knob, and the cam moves to close the internal normally open waterproof micro switch, sending an alarm signal, while releasing the normally closed contact, connecting the solenoid valve coil, and exhausting the air quickly. At this time, the door can be easily opened by hand to achieve emergency escape in the car.
Features of waterproof micro limit switch
In demanding applications such as automotive safety, smart home appliances or industrial control, stable and reliable sealed switches are essential. Unionwell's waterproof micro limit switch has excellent protection performance, international certification guarantee and long life design, and is designed for demanding environments.
- IP67 protection level: waterproof and dustproof design, suitable for harsh environments such as humid, dusty, and outdoor
- Authoritative safety certification: passed UL, cUL, ISO and other international certifications, in line with global market access standards.
- Multiple terminal and operating handle options: flexible adaptation to different installation structures and circuit requirements.
- Long life and high reliability: excellent mechanical life and electrical performance, support high-frequency action.
HonorOUR Certification
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2024: Won the ISO50012024: Won the Ecovadis2023: Won the ISO140012023: Won the Specialized and New Certificate2022: Won the Provincial Engineering Center Enterprise2022: Won the UL Witness Laboratory2016: Won the IATF169492016: Won the ISO450012015: Won the ISO90012014: High-tech Enterprise Certificate
why choose Unionwell
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1
Quality Certification
We have formed a complete quality management system and have passed ISO9001, IATF16949, ISO14001 certifications, with high-quality and reliable performance! -
2
Efficient Production Capacity
Unionwell has introduced advanced automated production technology in the industry, with an annual production capacity of more than 250 million switches, including more than 4 million waterproof automotive switches. -
3
Complete product range
Unionwell offers a complete product range covering waterproof, dustproof, ultra-miniature, and high-precision micro switches, ensuring fast adaptation to diverse applications across automotive, home appliances, and industrial automation. -
3
Super competitive price
Unionwell provides super competitive pricing backed by in-house tooling and automated production, helping you reduce costs while maintaining high quality and reliable supply for large-volume projects.
FAQ
What makes the micro limit switch waterproof?
Waterproof micro limit switches are protected by sealed housings, with a common protection level of IP67 and above. Its sealing structure usually includes a molded housing, a rubber seal or epoxy resin potting at the terminal, which effectively prevents moisture, dust and other contaminants from entering the interior.
What customization options does Unionwell provide?
Unionwell can provide a number of customized services such as housing material, actuator type, terminal form, protection level, lead wire material, action force, etc., and support OEM/ODM development projects, including mold opening and rapid prototyping.
What is the mechanical and electrical lifespan of your waterproof limit switches under load?
Our waterproof micro limit switches are engineered for high durability, offering up to 1,000,000 mechanical cycles and over 100,000 electrical operations under rated load conditions (typically 5A at 250VAC). This makes them ideal for high-frequency switching environments such as automotive modules, industrial machinery, and safety systems.
Do you offer OEM/ODM service for waterproof micro limit switches with specific mounting dimensions?
Absolutely. With a dedicated R&D team and in-house tooling capabilities, Unionwell provides OEM/ODM support including custom housing design, bracket configuration, and customer-branded labeling. We’ve worked with global manufacturers to adapt switch dimensions for direct fit into tight or legacy installations.Absolutely. With a dedicated R&D team and in-house tooling capabilities, Unionwell provides OEM/ODM support including custom housing design, bracket configuration, and customer-branded labeling. We’ve worked with global manufacturers to adapt switch dimensions for direct fit into tight or legacy installations.
What are the typical applications of your waterproof micro limit switches in automotive or industrial environments?
Unionwell’s waterproof micro limit switches are widely used in automotive door locks, sunroofs, power tailgates, HVAC actuators, and emergency valve control systems. In industrial equipment, they support position detection in conveyor systems, safety covers, and outdoor control panels, where high sealing performance and reliability are critical.
Are there any application cases or engineering usage suggestions?
Yes. Unionwell's waterproof micro limit switches are widely used in car door locks, AGV handling robots, industrial automation equipment and outdoor machinery. It is recommended to choose products with enhanced sealing performance in high humidity or water washing environments, and verify the actual working conditions before mass application.
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