Magnetic proximity switches are a type of electromagnetic switch that controls the flow of electricity within a circuit. They are composed of at least two ferrous reeds enclosed in a small glass casing. The switches are magnetised and move when a magnetic field is brought near the switch. Various contact configurations are available, such as SPST (single pole, single throw) and SPDT (single pole, double throw).
Reed switches, which operate on the same principle, are often grouped within this category because they also use magnetically actuated reeds to open or close circuits. Magnetic proximity switches and reed switches are widely used for limit switching, machine tool position sensing, valve position sensing, food processing machinery, and elevator position sensing. These applications take advantage of their ability to operate without physical contact, making them ideal for environments where durability and reliability are essential.
At RS, we offer a comprehensive range of magnetic proximity switches and reed switches from leading brands such as SICK, Celduc, and RS PRO. Our selection includes various configurations and specifications to suit diverse industrial and automation applications. With RS, you can count on fast delivery to keep your projects moving without delays.
Because magnetic proximity switches operate without physical pressure, they experience no standard wear and tear, ensuring a longer lifespan. They require no external voltage to function, making them energy-efficient and simple to integrate into systems. All models are designed to be reliable and compact, while the glass tubes encasing the reed switches provide excellent protection against corrosion, even in harsh environments.
For more information please refer to the Proximity Sensors Guide & Reed Sensors Guide