Sealed Micro Switch vs. Standard Micro Switch: Key Differences

Sealed micro switches and standard micro switches are the two most important categories of micro switches, and they cover almost all application scenarios, but what exactly is the difference between them and how should you choose? As an experienced micro switch supplier, Unionwell will answer your questions in this article.

What is a Sealed Micro Switch？

Sealed micro switches, also known as waterproof and dustproof micro switches, are small and highly reliable electrical components with either snap action or sliding internal construction, often with wire options. They are generally used in applications such as automotive systems, outdoor equipment and industrial equipment to provide sensitive, consistent performance.

What is a standard micro switch？

Standard Micro switch as known snap action micro switch, usually requires very little mechanical force to activate and is highly responsive, but is not necessarily waterproof or dustproof. Generally used in home appliances, industrial machinery, electronic equipment, and automotive systems.

Features and Benefits of Sealed Micro Switch

Small and Compact Size

The sealed micro switch usually is miniature micro switch or sub-miniature micro switch, so it only is half of standard micro switch, even more. Therefore they can be adapted to a wider range of application scenarios and integrated into dense installation spaces.

Waterproof and Dustproof

The sealing mechanism protects the internal components from dust, dirt, moisture, and chemicals. it is at least IP67 certified, ensuring longevity and reliable performance even in challenging conditions.

Long Lifespan

The sealed switch's mechanical life is at least 500,000 cycles, while its electrical life is at least 100,000 cycles. It can withstand temperatures from -40°C to 85°C and is ideal for demanding industries such as automotive, aerospace, and heavy machinery.

Slide Type

Some sealed micro switches are available in sliding configurations, such as Unionwell's G304D long travel sealed subminiature micro switch. Slide structure micro switches have a mute effect and are suitable for use in applications that require silent operation.

High Reliability

These switches provide consistent performance over time, reducing the likelihood of critical system failures. In particular, sliding structure reduce the likelihood of arcing and short-circuit phenomena.

Features and benefits of standard micro switch

Suitable for multiple applications

The standard micro switch is capable of withstanding a wide range of operating forces, from 7gf to 600gf. And it is available in multiple PTI ratings, such as 175V, 250V, and 600V, which makes it suitable for a wide range of applications, such as home appliance, industrial, automotive, aerospace, and more.

Cost-Effective

Standard micro switches are generally less expensive than their sealed counterparts, making them a budget-friendly option for many applications.

Easy to Install and Replace

Their simple design allows for easy integration into a variety of systems, with straightforward installation and maintenance processes.

Key Diffidence of Sealed Micro Switch and Standard Micro Switch

Although sealed switches and standard micro switches work on basically the same principle, they differ in the following aspects:

Protection level

Sealed micro switches utilize rubber rings, waterproof coatings, and other materials to enhance water, dust, oil, and corrosion resistance, and are available in IP67 or higher ratings. Standard switches are more susceptible to environmental influences.

Durability

Applications

How to Choose a Micro Switch for Your Project

Environmental conditions

If your equipment will be exposed to moisture, dust or extreme temperatures, sealed micro switches are your best choice. If you will be using the product in a dry environment, choose a standard micro switch.

Size and Mounting

When selecting a micro switch, consider the space available for the product. Sealed micro switches are usually small in size and can be wired for easy installation. However, if your product does not require a micro switch that is waterproof and dustproof, you can also choose a miniature basic micro switch to avoid adding unnecessary costs.

Certifications

Whether it's a sealed micro switch or a standard micro switch, ask your supplier to provide basic safety certifications such as ISO, UL, cUL, ENEC to ensure that the micro switch complies with global safety standards and to avoid risks. While sealed micro switches are required to provide IP64 and above certifications to ensure the authenticity of waterproof and dustproof.

Budget

Sealed micros witches tend to be more expensive than standard micro switches. Determine your budget and choose accordingly to balance performance and cost.

Unionwell’s advantages

Quality Assurance: All Unionwell micro switches are rigorously tested and have global safety approvals to ensure durability,  such as we have a (WTDP) UL Witnessed Lab, with globally valid UL-certified reports. reliability and compliance with industry standards.

Cost-effective: We integrate our group supply strengths combined with smart manufacturing systems, advanced production technologies, and equipment, to achieve effective cost control. to reduce production costs, even with the 145% duty added, making us a cost-effective supplier.

Customized Solutions: Unionwell offers customized solutions to meet your product's specific needs,  ensuring compatibility and optimal performance.

Global Reach: Unionwell products are trusted by customers all over the world, including industry giants in the Americas, Europe and Asia. We believe that product quality is the first, and we are committed to providing our customers with reliable, high quality components for their electronic and mechanical systems.

conclusion

whether you're considering a sealed micro switch or a standard micro switch, the key is to assess the specific needs of your product and application. Understanding the differences between the two will help you make an informed decision, ensuring your product performs reliably and efficiently. For high-quality micro switches, Unionwell offers excellent solutions that meet the highest standards of performance and reliability. Contact us today to select a specialized micro switch supplier for your project!