Reed Switch

A reed switch is an electromagnetic switch used to control the flow of electricity in a circuit. They are made from two or more ferrous reeds encased within a small glass tube-like envelope, which become magnetised and move together or separate when a magnetic field is moved towards the switch. The switch effectively works like a gate, or a bridge, in an electric circuit so when the two reeds are in contact, electricity can flow around the circuit operating a device. Unlike mechanical switches they do not require something or someone to physically flick them on or off, they are controlled completely by invisible magnetic fields!

Technical Specification

• Overall Length: 55.4mm
• Glass Length Max: 21.0mm
• Glass Dia. Max: 2.75mm
• Lead Dia: 0.6 mm
• Contact Form: 1A (SPST) Normally Open (N.O.)
• Pull-In Range: 20-60 AT
• Rated Power Max.: 100W/350VDC/1 Amp DC