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    Relays

    Relays are electromagnetic switches powered by a relatively small current and thanks to their structure they can both switch off or amplify a much larger current. They have been largely used in the telecom industry since the 19th century, as well as in the industrial and automotive sectors. Their application has now extended to computing and medical research, making relays a fundamental component for devices used in everyday life.

    How does a general purpose relay work?

    Relays work based on electromagnetic force. The core of a relay is made of a coil of wire (commonly copper, which is low-resistance and facilitates power transmission) which becomes a magnet when it receives an electric current.

    They work as a bridge between devices, receiving an input signal from the first one and transmitting an output to the second. The electromagnetic current generated by the electrical input from the first device on the relay causes the contacts to open or close, determining the transmission or the blockage of the electrical signal to the second device.

    What is a general purpose relay used for?

    There are different kinds of relays suited for different applications:

    • Latching relays: they can be operated by a magnetic or mechanical system, and can feature a single or a double-winding coil. Their position stays where it was when the circuit was last powered. They're commonly used to operate automatic doors and gates, as well as in lighting.
    • Non latching relays: differ from how latching relays work as non-latching relays go back to their initial position when the power is removed from the circuit. Normally found in push-button applications such as keyboards.
    • High frequency and RF relays: most commonly used in radio system, computing, testing and industrial equipment where high voltages are involved and standard relays cannot support an efficient function. An example of application is in radio devices: relays separate the circuits responsible for receiving and transmitting high frequency signals.

    Whatever the relay is you are looking for, we offer a broad range from the most trusted suppliers worldwide, such as Panasonic, Omron, TE Connectivity and our very own RS Pro.

    Automotive Relays
    Automotive Relays
    Earth Leakage Relays
    Earth Leakage Relays
    Electromechanical Interface Relays
    Electromechanical Interface Relays
    Force Guided Relays
    Force Guided Relays
    HF & RF Relays
    HF & RF Relays
    Monitoring Relays
    Monitoring Relays
    Power Relays
    Power Relays
    Reed Relays
    Reed Relays
    Safety Relays
    Safety Relays
    Signal Relays
    Signal Relays
    Solid State Interface Relays
    Solid State Interface Relays
    Solid State Relays
    Solid State Relays
    Timer Relays
    Timer Relays

    15126 Producten voor Relays

    1 van 757
    Sensata Crydom Solid State Interface Relay, 32 V dc Control, 6 A Load, DIN Rail Mount
    • RS-stocknr. 720-4076
    • Fabrikantnummer DR10D06
    Per stuk
    € 67,72
    Siemens SIRIUS 3TK2 Safety Relay, 24V dc, Dual-Channel, 2 Safety Contacts
    • RS-stocknr. 211-9560
    • Fabrikantnummer 3TK2810-1BA41
    Per stuk
    € 1.155,73
    Dold Phase Monitoring Relay, 3 Phase, DIN Rail
    • RS-stocknr. 358-6917
    • Fabrikantnummer IK9168 3AC50/60Hz 230/400V
    Per stuk
    € 63,35
    Finder PCB Mount Power Relay, 24V dc Coil, 8A Switching Current, DPDT
    • RS-stocknr. 351-588
    • Fabrikantnummer 40.52.7.024.0000
    Per stuk
    € 7,20
    Siemens SIRIUS 3SK1 Safety Monitoring Safety Relay, 24V dc, Single Channel
    • RS-stocknr. 784-5790
    • Fabrikantnummer 3SK1112-1BB40
    Per stuk
    € 146,67
    Sensata Crydom DR67 Series Solid State Relay, 60 A Load, DIN Rail Mount, 600 V ac Load
    • RS-stocknr. 227-0902
    • Fabrikantnummer DR6760D60RP
    Per stuk
    € 499,97
    Omron Plug In Latching Power Relay, 24V dc Coil, 3A Switching Current, DPDT
    • RS-stocknr. 803-304
    • Fabrikantnummer MY2K DC24
    Per stuk
    € 25,61
    Allen Bradley Guardmaster MSR, Minotaur 440R / MSR5T Emergency Stop Safety Relay, 24V ac/dc, Single Channel, 3 Safety
    • RS-stocknr. 193-0520
    • Fabrikantnummer 440R-B23020
    Per stuk
    € 378,84
    Sensata Crydom PM67 Series Solid State Relay, 25 A Load, Panel Mount, 600 V ac Load
    • RS-stocknr. 227-0959
    • Fabrikantnummer PM6760D25P
    Per stuk
    € 220,54
    Broyce Control DIN Rail Mount Timer Relay, 12 → 230V ac/dc, 1-Contact, 0.1 s → 100h, 1-Function, SPDT
    • RS-stocknr. 828-5155
    • Fabrikantnummer LEDO 12-230V AC/DC
    Per stuk
    € 42,82
    Crouzet Current Monitoring Relay, SP-NO/NC, DIN Rail
    • RS-stocknr. 261-959
    • Fabrikantnummer 84871122
    Per stuk
    € 133,41
    Siemens 3RF2 Series Solid State Relay, 230 V Load
    • RS-stocknr. 211-4918
    • Fabrikantnummer 3RF2120-1AA42
    Per stuk
    € 52,80
    Sensata Crydom Solid State Relay, 50 A rms Load, Surface Mount, 280 V ac Load, 32 V dc Control
    • RS-stocknr. 346-687
    • Fabrikantnummer D2450
    Per stuk
    € 63,32
    Omron H3YN Series DIN Rail, Panel Mount Timer Relay, 24V ac, 2-Contact, 0.1 s → 10min
    • RS-stocknr. 236-1307
    • Fabrikantnummer H3YN-2 AC24
    Per stuk
    € 70,70
    Finder Plug In Power Relay, 24V dc Coil, 16A Switching Current, SPDT
    • RS-stocknr. 534-5279
    • Fabrikantnummer 46.61.9.024.0074
    Per stuk
    € 8,72
    Finder PCB Mount Power Relay, 24V dc Coil, 8A Switching Current, DPDT
    • RS-stocknr. 182-9777
    • Fabrikantnummer 40.52.9.024.0000
    Per stuk
    € 7,20
    Better World
    Schneider Electric Phase, Voltage Monitoring Relay, 3 Phase, DPDT, 220 → 480V ac, DIN Rail
    • RS-stocknr. 146-480
    • Fabrikantnummer RM35TF30
    Per stuk
    € 181,83
    Omron Plug In Power Relay, 220 → 240V ac Coil, 10A Switching Current, DPDT
    • RS-stocknr. 271-1906
    • Fabrikantnummer MY2-GS-R AC220/240
    Per stuk
    € 10,32
    Durakool Plug In Automotive Relay, 12V dc Coil Voltage, 40A Switching Current, SPST
    • RS-stocknr. 915-6648
    • Fabrikantnummer DG82-7021-36-1012-DR
    Per stuk
    € 4,01
    Dold Phase Monitoring Relay, 3 Phase, DIN Rail
    • RS-stocknr. 358-6951
    • Fabrikantnummer IK9178 3AC50/60Hz 400V
    Per stuk
    € 63,51
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