Relays Catalog
By Working Principle
- Solid State Relay
- Thermal Relay
- Time Relay
- Electromagnetic Relay
- Electrical Relay
- Reed Relay
- Auto Relay
- Temperature Relay
- Flasher Relay
By Structure
By Feature
By Function
By Application
- General Relay
- Automotive Relay
- Industrial Relay
- Starter Relay
- Telecom Relay
- Electromechanical Relay
- RF Coaxial Relay
Relay Accessories & Parts
Relays Catalog
A Relay is an Electrical Switch that opens and closes under the control of another electrical circuit. In the original form, the Switch is operated by an Electromagnet to open or close one or many sets of contacts. It was invented by Joseph Henry in 1835. Because a Relay is able to control an output circuit of higher power than the input circuit, it can be considered to be, in a broad sense, a form of an electrical Amplifier.
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