A relay is an electronically operated switch that is remotely activated by an electromagnet which pulls a set of contacts to either make or break a circuit. Relays are commonly used for – among other functions – switching signals, radio frequencies, high current circuits when using a lower current circuit, and loads such as resistive, motor, lamp, inductive, and capacitive applications. This is helpful when an in-line switch or existing circuit does not have the capacity to handle the required current.


Functions of Relays

  • Galvanic separation of the primary or actuating circuit and load circuits
  • Single-input/multiple-output capability
  • Separation of different load circuits for multi-pole relays
  • Separation of AC and DC circuits
  • Interface between electronic and power circuits
  • Multiple switching operations – time delay, signal condition, among others
  • Serves as an amplifier


At TE, we manufacture one of the broadest ranges of relay types, including automotive relays, latching (bi-stable) relays and non-latching (monostable) relays, plug-in relays, power relays, reed relays, timer relays, signal relays, general purpose relays, and solid state relays, also known as SSRs.


Our relays are typically used for – among many other applications – electrical isolation, controlling power in manufacturing and transportation applications, and for switching smaller current values in a control circuit, such as in building automation technology and control panels. Our portolio features switching solutions from our brands: AGASTATAxicomCIIHARTMANKILOVACOEGPotter and Brumfield, and SCHRACK.