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Relays
A Reed bulb is an electrical switch that is activated by an external magnetic field.
To generate the magnetic field for the Reeed, a solenoid or a magnet can be used.
They can also be used as a position sensor and are used as intrusion sensors in alarm systems.
The Reed Relay is an assembly where the manufacturer has arranged the solenoid with the Reed in the same case.
We have included the definition and characteristics of all types on the Relays page.