Assemtech Rectangular Reed Switch, NO, 200V, 500mA

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Assemtech Rectangular Reed Switch, NC, 130V, 250mA

Assemtech Cylindrical Reed Switch, NO, 1500V, 5A

Assemtech Cylindrical Reed Switch, NO, 400V, 1A

Assemtech Rectangular Reed Switch, NO, , 25mA

Assemtech Rectangular Reed Switch, NO, 24V, 100mA

Assemtech Rectangular Reed Switch, NO, 70V, 250mA

Assemtech Rectangular Reed Switch, CO, 150V, 1A

Assemtech Rectangular Reed Switch, NO, 470V, 500mA


Magnetic proximity switches are a type of electromagnetic switch that controls the flow of electricity within a circuit. They are also commonly referred to as electromagnetic switches, magnetic limit switches, reed switches, magnetic proximity reed switches, or magnetic proximity sensors.

These switches are composed of at least two ferrous reeds in a small glass casing. The reeds are magnetised and move when a magnetic field is moved towards the switch, thus opening or closing the electrical circuit. Various contact configurations are available, such as SPST (single pole, double throw), SPDT (single pole, double throw), and others, to suit different switching needs.

## **Features and Benefits**

Magnetic proximity switches offer numerous advantages over traditional [mechanical switches](https://au.rs-online.com/web/content/discovery/ideas-and-advice/switch-technology-from-basics-to-modern-innovations). As there is no physical contact or pressure on the switch, there's minimal wear and tear, leading to exceptional reliability and a long operational lifespan. These switches also require no voltage to operate, making them energy-efficient and suitable for low-power applications.

Additionally, their compact size makes them ideal for space-constrained environments. The glass tubes encasing the reed switches protect them from corrosion and environmental contaminants, ensuring reliable performance even in extreme conditions. This inherent robustness makes them a preferred choice in applications where other switches, like limit switches, might fail due to dust, moisture, or vibration.

## **Types of Magnetic Proximity Switches**

Magnetic proximity switches come in various forms, each employing a different method for detecting magnetic fields:

- **Unipolar Switches:** These switches are activated by the presence of a magnetic field of a specific polarity (either north or south). They are commonly used for simple position sensing, such as detecting the open or closed state of a door or window.
- **Bipolar Switches:** These switches can be activated by either a north or south pole magnetic field, offering greater flexibility in applications where the magnet's orientation may vary. They are often used in security systems and industrial automation.
- **Latching Switches:** Latching switches maintain their state (either open or closed) even after the magnetic field is removed. They require a magnetic field of the opposite polarity to reset their state. These switches are useful for applications where a "memory" function is needed, such as in counting or security systems.
- **Omnipolar Switches:** Omnipolar switches are activated by the presence of any magnetic field, regardless of polarity. They offer the greatest versatility and are suitable for applications where the magnetic field's strength or orientation is unpredictable.

## **Installation and Maintenance Tips**

All magnetic switches and sensors require proper installation to ensure optimal performance and longevity. This includes carefully selecting the appropriate mounting location, ensuring precise alignment with the target magnet, and using the correct wiring and connection methods as specified in the manufacturer's instructions. Additionally, consider environmental factors like temperature extremes, vibration, and potential exposure to moisture or contaminants that might affect performance.

Aside from proper installation, regular maintenance is crucial to ensure the continued reliability of magnetic proximity switches. Therefore, it is essential to routinely inspect the switch for any signs of damage or wear, such as cracks in the casing or loose connections. It is also recommended to periodically clean the switch and surrounding area to prevent the build-up of dust or debris that could interfere with its operation.

## **Industrial Applications of Magnetic Proximity Switches**

Magnetic switch sensors are versatile sensing solutions used across a wide range of industries:

- **Discrete Manufacturing:** In automated assembly lines, these magnetic switches are used for precise part detection, counting, and position sensing, ensuring accurate and efficient operation.
- **Process Manufacturing:** They monitor the level of liquids or granular materials in tanks and containers, providing accurate measurements for process control and inventory management.
- **Energy & Utilities:** Magnetic proximity switches enhance [workplace safety](https://au.rs-online.com/web/content/discovery/ideas-and-advice/enhancing-workplace-safety-through-best-practices) and security in energy and utility applications by monitoring the position of valves, doors, and other equipment.
- **Facilities & Intralogistics:** They detect the presence and position of objects in automated storage and retrieval systems (AS/RS), ensuring efficient and safe material handling within warehouses and distribution centres.

## **Your Trusted Magnetic Proximity Switches Supplier & Manufacturer**

RS is your reliable source for high-quality electromagnetic switches. We stock an extensive range from industry leaders like [Celduc](https://au.rs-online.com/web/c/switches/limit-position-switches/magnetic-proximity-switches/?pn=1&rpp=20&selectedNavigation=brands=Celduc) and [SICK](https://au.rs-online.com/web/c/switches/limit-position-switches/magnetic-proximity-switches/?pn=1&rpp=20&selectedNavigation=brands=SICK), including our own [RS PRO](https://au.rs-online.com/web/c/switches/limit-position-switches/magnetic-proximity-switches/?pn=1&rpp=20&selectedNavigation=brands=RS%20PRO) line. Our selection spans various types and sizes, at competitive prices, ensuring you find the perfect magnetic proximity sensor or magnetic distance sensor for your application.

At RS, we are committed to providing the best products for all your switching needs. From magnetic proximity switches to [rotary cam switches](https://au.rs-online.com/web/c/switches/rotary-switches-components/cam-switches/) and [interlock switches](https://au.rs-online.com/web/c/switches/safety-interlock-switches-components/safety-interlock-switches/), we have everything you need to ensure reliable and efficient operation. Trust RS and explore our range of products. For more details on our ordering process, delivery services and delivery fees, please refer to our [Delivery Page](https://sg.rs-online.com/web/content/support/all-articles/delivery).



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Assemtech Magnetic Proximity Switches

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