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UnionwellSPDT-NO/NC Micro Switch Type

This is the SPDT micro switch（NO/NC） produced by Unionwell. In order to suit various applications, there are various lever switch types. Including push button, hinge lever, pin plunger and other operating lever actuators. The contacts are equipped with spdt configuration, supporting NO or NC functions, and the functions are changeable. It is the best choice for your application equipment!
Unionwell is a Chinese manufacturer specializing in the manufacture of micro switches. The product range covers various types of micro switches, including automotive micro switches, basic micro switches, waterproof micro switches, etc. Support micro switch wholesale, customized services, and provide free sample testing!

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This video shows you Unionwell's spdt-no/nc pin plunger micro switch. If you are interested, please follow our YouTube account to learn more about micro switches!
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Various SPDT-NO/NC micro switch types specifications

The following are three common types of SPDT micro switches: spdt-no nc button micro switch, spdt-no nc hinge lever micro switch, spdt-no nc pin plunger micro switch. Their operating temperatures are all -40°C~+80°C, and the internal contacts are configured with SPDT circuit mode, which can be set to normally open (NO) or normally closed (NC) functions. The operating force is 15~150gf, the electrical service life is greater than 100,000 times, and the mechanical life is about one million times. And the switches all comply with international safety certifications, such as ISO, IATF16949,ENEC, UL,cUL, RoHS, etc.
Want to learn more about high-quality micro switches? Click here to view the full range of Unionwell products.
micro switch manufacturer-Unionwell G1&G17ay8
01

G1&G17

SPDT-NO/NC pin plunger micro switch
micro switch manufacturer-Unionwell G5W11lum
04

G5W11

SPDT-NC hinge lever micro switch
micro switch manufacturer-Unionwell G9kkf
05

G9

SPDT-NO hinge lever micro switch
micro switch manufacturer-Unionwell G25
06

G25

SPDT-NO NC push button micro switch

SPDT Micro Switch Types

  • FD-615MT Specs.pdf

    SPDT-NO/NC pin plunger micro switch - G1&G17 Series PDF

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  • FDM-615PTM Specs.pdf

    SPDT-NC Hinge Lever Micro Switch - G5W11 Series PDF

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  • FDM-6600 Specs.pdf

    SPDT-NO Hinge Lever Micro Switch - G9 Series PDF

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  • FIP-2405 Specs.pdf

    SPDT-NO/NC Push Button Micro Switch - G25 Series PDF

    Download

Differences between different SPDT micro switch operating lever types

SPDT-NO/NC push button micro switch, SPDT-NO/NC hinge lever micro switch and SPDT-NO/NC pin push rod micro switch are three common types of micro switches, each with its own characteristics in structure and application.
●SPDT-NO/NC Push Button Micro Switch
The SPDT-NO/NC push button micro switch uses a button-type trigger mechanism, which can be operated by directly pressing the button. Its compact structure has the advantages of its intuitive operation and strong durability, and it performs stably in high-frequency use environments.
●SPDT-NO NC Hinge Lever Micro Switch
The SPDT-NO NC hinge lever micro switch has a lever mechanism that can trigger the switch by applying different angles or forces on the lever. Compared with push button switches, it can be triggered by softer mechanical actions and is suitable for limit detection, automatic door control and mechanical feedback systems. This design can reduce the direct pressing force, extend the service life, and is suitable for complex mechanical linkage structures.
●SPDT-NO NC Pin Plunger Micro Switch
The SPDT-NO NC pin plunger micro switch uses a pin plunger as a trigger element. The switch operates when an external object pushes the pin. It is usually used in applications that require precise displacement triggering, such as industrial automation equipment, precision instruments, and security systems. Due to its high precision and stability, the pin plunger type micro switch has more advantages in environments that require small stroke and high sensitivity triggering..
SPDT-no/nc micro switch

G9 SPDT-no hinge lever micro switch in charging gun application

As can be seen from the video, the G9 SPDT-NO hinge lever micro switch plays a key role in the charging gun. When the charging gun is correctly inserted, the lever of the micro switch is pressed, the internal contacts are switched, and a signal is sent to the control system to ensure that the current is smoothly connected; and when the user pulls out the charging gun, the contacts of the micro switch are reset, indicating that charging stops, preventing safety hazards caused by arcing and misoperation.

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    Application of G5 SPDT-NO/NC micro switch in washing machine

    G5's SPDT basic micro switch mainly plays the role of state detection and circuit control in washing machines. It detects key states such as whether the door is closed, whether the water level is reached, and whether the program is switched through precise mechanical actions. When the set conditions are detected, the micro switch can quickly switch the circuit conduction state through its normally open (NO) or normally closed (NC) contacts to achieve start and stop control of key components such as motors and water inlet and outlet pumps.

    It has the advantages of fast response, long life, and compact structure. It is one of the core components to ensure the safe operation of washing machines and accurate execution of programs. If you want to know more about micro switches for household appliances, please click on the red font to view more special content.

      Buy the Same Micro Switch Now
      SPDT-NO NC Micro Switch Lever Typeshow to use SPDT micro switches

       NO vs NC Micro Switch

      When purchasing a micro switch, the difference between COM, NO and NC directly affects the operation logic of the device. Therefore, their functional relationship must be clearly understood, otherwise it is easy to cause wiring errors and circuit failure. Let's distinguish the functions of the three terminals in detail.
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    • ●COM Type
      COM terminal is the common connection point between NO and NC. When connecting, one end must be connected to COM. When in use, the other end of the wire is connected to NO or NC according to the needs to form the target control loop.
    • ●NO Type(Normally Open)
      The NO terminal is not conducting in the default state, and is only closed with the COM terminal when pressed, which is suitable for control requirements such as device startup and signal output. For example, the circuit is only turned on and starts working when the button is pressed.
    • ●NC Type(Normally Closed)
      The NC terminal is connected to the COM terminal in the default state, and is disconnected after pressing. That is, the circuit is always running, which is opposite to the NO type, and is suitable for safety scenarios such as emergency stop, power cutoff, abnormal protection, etc.
      • Tips: In order to achieve intelligent feedback, many industrial equipment often use double-pole DPDT limit micro switches with a NO+NC combination structure, which output different status signals through COM to ensure that the system can obtain accurate feedback in any state.
      🔍 Still unsure whether your project requires NO, NC, or SPDT contact configurations?
      📩 Contact our Unionwell application engineers for a free evaluation & technical datasheet.
      View More SPDT Micro Switch
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      NO/NC contact material and reliability
      Why are silver alloys more durable than pure copper?

      The life and reliability of micro switches depend on the contact material. The reliability and life of micro switches made of different materials are different. Many customers feel that the life is too short or the switches frequently fail in high humidity environments. The root cause is often the selection of inferior contact materials.
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    • Silver alloy contacts
      With excellent conductivity, strong arc resistance and low oxidation resistance, they are the preferred material for most medium and high current control scenarios. They can maintain a stable conduction state even under high-frequency operation, significantly extending the service life of the switch.
    • Gold contacts
      Designed for low current or signal level scenarios, their strong oxidation resistance ensures accurate signal transmission. They are commonly found in systems with extremely high reliability requirements such as communication equipment and medical instruments. However, they are expensive and are rarely used.
    • Copper contacts
      Although they are low in cost, they are easy to oxidize and have poor arc tolerance. They are not recommended for high-frequency, high-humidity, and high-precision control environments. They are suitable for short-term projects with tight budgets and low performance requirements.
      • Unionwell provides a variety of contact material combinations and supports project-level customization. If you don’t know how to choose micro switches types for your equipment, please contact Unionwell for free professional selection advice.
      View More SPDT Micro Switch

      Your Trusted Partner for Advanced SPDT-NO/NC Micro Switch Solutions

      At Unionwell, we are dedicated to delivering high-quality solutions with our SPDT-NO/NC Micro Switches. As a trusted micro switch manufacturer, we work closely with our clients to provide reliable, high-performance switches for diverse applications, including automotive, industrial automation, home appliances, and smart devices. Our SPDT-NO/NC micro switches offer precise control and durability, ensuring seamless functionality in demanding environments. Partner with Unionwell for innovative, top-tier switching solutions that enhance efficiency and meet your exact requirements.

      Quality Assuranceyse

      Quality Assurance

      We implement strict quality control standards, with rigorous oversight at every stage from raw material procurement to production manufacturing.
      Customization Serviceshye

      Customization Services

      We offer design and mold making services for micro switch components (plastic parts, metal parts), customized according to the design requirements of the customer. The customization scope includes switch body components and other switch accessories.
      Free Samplessxv

      Free Samples

      After confirming the product model, we provide 5-10 free samples to customers for testing before purchasing switches.
      Multiple Payment Methods9vm

      Multiple Payment Methods

      Payment methods are typically bank transfers. If you prefer other payment methods, you can communicate with the corresponding responsible person for assistance.

      Customized solutions for SPDT micro switches

      Unionwell provides customized solutions for SPDT type micro switches. We have many engineers with more than 30 years of R&D experience and many years of OEM/ODM design and production mode. We help OEM buyers reduce design risks and ensure 100% compatibility from prototyping to mass production.

      • Customizable voltage parameters
      • Customizable terminal types
      • Customizable protection level, IP40/IP67/IP68
      • Customizable lever type, straight lever/roller lever/plunger type
      • Professional certification, UL, cUL, ISO, IATF16949, ENEC and other international certifications

      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.Welcome to learn more about SPDT micro switches and DPDT limit switches!

      Customized SPDT Type Micro Switches
      Customized solutions for automotive micro switches

      Other Micro Switches You May Be Interested in

      In addition to SPDT micro switches, we also have more types of micro switches, such as sealed waterproof micro switches, basic micro switches and automotive micro switches, etc.
      Clip Type Silent Sealed Micro Switch G304/6/9 Series
      01

      G304/6/9
      Sealed Subminiature Micro Switch With Inner Resistor G3
      02

      G3
      Global Safety Approvals Basic Micro Switch G5
      03

      G5
      Waterproof and Dustproof Sealed Basic Micro Switch G5W11
      04

      G5W11
      01

      FAQ

      How to choose a SPDT-NO/NC lever micro switch for industrial applications?

      When purchasing, you should pay attention to the rated current, voltage, mechanical life and environmental tolerance of the switch. For different fields such as industrial automation, automobiles, and home appliances, you need to choose a micro switch that meets IP grade protection, high temperature resistance, waterproof and dustproof to ensure long-term stable operation.

      What are the main specifications of the SPDT-NO/NC lever micro switch?

      B-end buyers need to pay attention to the rated current (1A-10A), rated voltage (AC125V-250V or DC adapter), trigger stroke, operating force and terminal type (welding, plug or wiring harness). When purchasing, you can choose the appropriate model according to the equipment requirements to ensure the best match.

      How to ensure the quality and reliability of the SPDT-NO/NC lever micro switch?

      When purchasing, you should choose manufacturers that have passed ISO certification, ROHS, CE and other standards, such as Unionwell micro switch suppliers, to ensure that the products meet international safety and durability requirements. At the same time, sample testing can be provided to evaluate the trigger sensitivity, life and environmental adaptability to avoid quality problems in batch use.

      What are the cost optimization solutions for bulk purchases of SPDT-NO/NC lever micro switches?

      B-end customers can reduce costs through long-term cooperation, customized production, and direct factory purchases. When purchasing in large quantities, price discounts can be negotiated, and customized packaging, batch testing, and logistics optimization services can be requested to improve procurement efficiency.

      What are the application cases of SPDT-NO/NC lever micro switches in different industries?

      Micro switches are widely used in automotive charging guns, home appliance door control, industrial limit detection, smart device switch control, etc. For specific case applications, please browse our application page.

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