When To Use a Magnetic Reed Switch
Magnetic reed switches control the flow of electricity in a circuit without requiring an external power source. They are engineered to function through proximity to a magnetic field, so the actuator (the source of the magnetic energy) is simply a magnet paired with a sensor or a switch.
Typically, a reed switch consists of a pair of electrical contacts sited on a magnetic metal reed and enclosed in a protective glass casing. These flexible switches can open and close circuits using AC and DC voltage.
Magnetic reed switches are preferred in many industries because of their wide range of benefits. This article will discuss magnetic reed switches’ common applications and advantages.
Common Applications of Magnetic Reed Switch
Because it is versatile, a magnetic reed switch can be applied to various industries, from home appliances to automotive. Particularly, this magnetic switch can be found in the following battery-operated devices:
Laptops and Mobile Phones
Usually used in clamshell designs and cases, magnetic reed switches allow the screen to turn off when the lid is closed.
Magnetic reed switches are ideal to use with security systems. They function as proximity sensors that trigger an alarm when the magnet moves away from the switch.
As long as a proximity sensor is present, magnetic reed switches can power car doors and the lights connected to refrigerator doors.
Auto Shut-Off Devices
Magnetic reed switches are installed in fluid level sensors and thermal cut-offs in dishwashers, washing machines, and showers.
Anemometers used to measure wind speed are operated with magnetic reed switches. They can also power speed sensor devices on bicycle wheels, car gears, and treadmills.
Safety Features in Devices
Magnetic reed switches are a safety feature in devices like food processors and power tools. They help prevent these devices from completely turning on when a lid, guard, or other component is not correctly placed.
Environments With Explosive Gases or Chemicals
Because magnetic reed switches are encased in protective glasses, any sparking from the switching action stays within the casing, preventing accidents in environments with explosive gasses and chemicals.
Benefits of Magnetic Reed Switch
A permanent magnet often powers a magnetic field in a reed switch. However, a current-carrying wire or coil may be used as an alternative. These switches are more cost-efficient than other electrics and consume less power, resulting in low mechanical wear and a longer operational lifespan.
Further, the switches don’t need to be physically accessed to control the electricity in the circuit, reducing the potential for electrical interference. Mechanical reed switches are also durable, reliable, compact, lightweight, and highly customizable in terms of precision and sensibility.
Finally, magnetic reed switches are sustainable and safe to use in hazardous environments because they are enclosed hermetically in glass cases. Hence, they are less vulnerable to corrosion.
Reliable Magnetic Reed Switches at Magnelink
For over 30 years, Magnelink has provided outstanding service and top-notch magnetic switches to clients from diverse industries! Our dedication and extensive experience allows us to supply dependable, innovative, and affordable products to our consumers, such as magnetic reed switches in a broad spectrum of housings:
- MLA Housing
- MLE Housing
- MLF Housing
- MLG Housing
- MLH Housing
- MLL Housing
- MLM Housing
- MLP Housing
- MLQ Housing
- MLT Housing
- MLU Housing