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UnionwellSPDT Limit Micro Switch Stable Supplier

Unionwell was founded in 2007 and has been a world-renowned micro switch supplier. The dual-output design of SPDT limit micro switch is widely used and has always been the best choice for industrial equipment. Unionwell provides four popular SPDT limit micro switches, namely the G5 basic micro switch used in household appliances, the durable G6 miniature micro switch, the G10 Subminiature micro switch, and the G12 industrial SPDT roller limit micro switch.
SPDT limit micro switch is a type of SPDT micro switch. Its unique features focus on limit detection, which requires the micro switch to have a higher response speed, durability and reliability. Due to the variety of installed equipment, there are different requirements for voltage parameters and size.

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The video shows you the production process of the common limit micro switches in the Unionwell factory.
UNIONWELL

SPDT Limit Micro Switch Hot-Selling Models

According to application requirements, Unionwell divides SPDT limit micro switches into four types of switches. G5 basic micro switches are mainly used in household appliances, and G6 miniature micro switches are popular in car doors. G10 ultra-small micro switches are more suitable for devices with compact space, such as mouse micro switches. G12 limit switches mostly provide limit detection functions for industrial equipment.

The SPDT micro switch has two output ports and has more flexible signal switching. And it has excellent reliability and can operate stably in the temperature range of -40°C~+85°C, which is enough to cope with most application scenarios. And the maximum rated current of these switches is 10A/250VAC, which can meet the application of high-power equipment. Passed global ISO9001, ISO/TS16949, ENEC, RoHS, REACH, CQC and other certifications.

Parameter

Operating Frequency Electrical 0.1A,120 cycles/min 3A,10~30 cycles/min
Mechanical 120 cycles/min
Contact Resistance (Initiative) 100mΩ Max.(without wire type)
Insulation Resistance (at 500VDC) 100MΩ Min.
Vbration Durability 10~55Hz,move 0.75mm(p-p)
Dielectric Strength 500VAC(50~60Hz)
Operating Temperature -40℃~+85℃
Operating Humidity 85%RH Max
Service Life Electrical Min.100,000 cycles (Depend on part NO.)
Mechanical Min.500,000 cycles

SPDT Limit Micro Switch

  • FDM-6600 Specs.pdf

    Basic Micro Switch - G5 Series PDF

    Download

  • FDM-6600 Specs.pdf

    Sealed Mini Micro Switch - G9 Series PDF

    Download

  • FIM-1440 Specs.pdf

    Subminiature Micro Switch- G10 Series PDF

    Download

Unionwell

G12 SPDT Limit Micro Switch

The most cost-effective G12 limit micro switch is recommended, which has the following irresistible features:

  • The shell is made of high temperature resistant phenolic plastic, suitable for temperatures of -40°C~+80°C
  • It has a very sensitive differential stroke
  • Precise operation repeatability
  • Extremely long mechanical life, can be operated more than 200,000 times
  • It has a variety of operating lever types such as plunger type, roller type, rocker type, roller rocker type, etc.
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G12 SPDT limit micro switch

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SPST limit micro switch

SPDT Limit Micro Switch Feature

Versatility

The SPDT limit micro switch adopts a single-pole double-throw (SPDT) circuit design, supports normally open (NO) and normally closed (NC) state switching, and is suitable for dual-channel control, circuit switching and signal feedback systems, improving application flexibility.

High reliability

Highly conductive alloy contacts are selected and precisely calibrated with spring force to ensure low contact resistance and stable on-off performance, which can maintain stable operation even under high load or frequent operation environments.

Accurate operation repeatability

The high-precision cam structure and micro-stroke trigger design are adopted to achieve strict action tolerance control, ensure the consistency of each trigger point, and make it have extremely high repeatability in automation equipment and precision measurement and control systems.

High Durability

The shell is made of high-strength engineering plastic or metal material, and has IP grade protection, which can effectively resist dust, oil and moisture erosion, and has strong impact resistance. It is suitable for industrial automation, mechanical control and harsh outdoor environments.
G12 SPDT limit micro switch circuit drawing

G12 SPDT limit micro switch circuit

SPDT circuit design: G12 limit micro switch contains three terminals: COM, NC, and NO, which can switch between normally closed (NC) and normally open (NO) states to achieve multi-channel control.
Instantaneous switching mechanism: When triggered by force, the internal spring drives the contacts to switch quickly, ensuring accurate signal conversion and improving circuit response speed.
Multifunctional application: Suitable for limit detection, safety interlocking and signal feedback, widely used in automation equipment and industrial control systems.
SPDT micro switch application

Application Of SPDT Limit Micro Switches

SPDT limit micro switch is used for mechanical joint travel control of electric forklifts. It is installed at a preset position. When the moving parts hit the switch, the contacts switch to realize the circuit on and off. It can accurately limit the travel, so that the equipment can automatically stop, reverse or change speed at the set position to ensure safety and stability. As a low-current master electrical appliance, it is triggered by mechanical collision and is widely used in limit detection, position control and automatic reciprocating motion to improve the accuracy and reliability of forklift operation.

Your Trusted Partner for Advanced SPDT Limit Micro Switch Solutions

At Unionwell, our SPDT limit micro switches undergo rigorous quality testing to ensure that each product can operate stably under high loads and complex environments. As an industry-leading supplier, we provide professional customization services to optimize switch specifications according to customer needs to adapt to different application scenarios, such as automotive, industrial automation, and home appliance control. To ensure that the product performance meets your requirements, we also provide free samples to help you verify its reliability and durability in actual applications. Choose Unionwell to experience excellent quality and high-performance solutions.

why choose Unionwell

Unionwell is a SPDT micro switch manufacturer in Huizhou, Guangdong with 30 years of manufacturing experience. It covers an area of ​​more than 65,000 square meters, has obtained CE certification from many countries around the world, has introduced advanced equipment in the industry, and has a professional R&D team!
  • 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

    Customized Service

    Unionwell has many R&D engineers with 20 years of work experience, and has many years of experience in OEM and customized micro switches, which can meet your various project needs.
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FAQ

How does a SPDT limit micro switch work?

The SPDT limit micro switch (single pole double throw) has a common terminal (COM), a normally closed terminal (NC), and a normally open terminal (NO). In the default state, COM is connected to NC. When triggered, the switch action switches, making COM and NO conductive, realizing circuit switching and equipment control.

How many operations can a SPDT limit micro switch withstand?

The mechanical life of a limit micro switch can usually reach more than 100,000 times, and the high-durability model can reach 500,000 times. The electrical life depends on the load. The specific life needs to be determined according to the current, voltage and environmental conditions. For example, the mechanical life of a G12 limit switch is about 200,000 times.

What application scenarios are SPDT limit micro switches suitable for?

This switch is widely used in industrial automation equipment, electric forklifts, machine tools, transmission systems and safety protection devices. It is often used for stroke control, position detection, limit protection and signal feedback to ensure accurate operation and safety of equipment.

Can SPDT limit micro switches be used in harsh environments?

High-quality SPDT limit micro switches usually have IP67 or higher protection levels, are waterproof and dustproof, and are suitable for high humidity, high temperature, strong vibration or dusty environments to ensure stable operation under harsh working conditions.

How to choose a suitable SPDT limit micro switch?

When choosing, you need to consider the operating voltage, current, operating force, travel range and environmental adaptability. If used outdoors or in a high-humidity environment, it is recommended to choose a model with waterproof sealing function and confirm that the load capacity matches the equipment requirements.

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