Permanent Magnets
Magnetic Reed Switches
A Reed Switch requires either a permanent magnet or magnetic field in order to activate the switch, thus it is commonly called a Magnetic Reed Switch. Permanent magnets are available in a variety of different sizes, magnetic materials, and shapes such as cylindrical, rectangular, disk or ring form.
The interaction between the Reed Sensor/Switch and Magnet is influenced by the magnet's mounting position, environment and the presence of another magnetic field.
Ideally, the magnet should be mounted in the moving part of the application. Professional tuning of the magnet and Reed Switch can improve the overall functionality of the whole sensor-magnet system.
Download Activation Distance Chart for 13 Sensor Product Series
Mini-Glossary
Form A = normally open contact (N. O.)
Form B = normally closed contact (N.C.)
Form C = change over contact (S.P.D.T.)
Form E = Bistable / Latching
AT = Ampere Turns; Parameter that describes magnetic sensitivity.
Magnet Resources
Magnetization Guide
Magnet guide of magnetization and magnet applications.
Magnet Specifications
Magnet characteristics: shape, dimmension, flux density, magnetic material.
Magnet Handling
Proper magnet handling techniques.
