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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

    14637 Producten voor Relays

    1 van 732
    RS PRO Voltage Monitoring Relay, 1 Phase, SPDT, 12 → 24V dc, DIN Rail
    • RS-stocknr. 102-6130
    Per stuk
    € 68,98
    RS PRO DIN Rail Mount Timer Relay, 12 → 230V ac/dc, 0.1 s → 100h, SPDT
    • RS-stocknr. 102-6122
    Per stuk
    € 47,45
    RS PRO Solid State Relay, 40 A rms Load, Panel Mount, 280 V ac Load, 32 V dc Control
    • RS-stocknr. 922-5201
    Per stuk
    € 22,15
    Pilz PNOZ X PNOZ X2.1 Emergency Stop Safety Relay, 24V ac/dc, Dual-Channel, 2 Safety Contacts
    • RS-stocknr. 239-1055
    • Fabrikantnummer 774306
    Per stuk
    € 200,50
    RS PRO DIN Rail Mount Timer Relay, 12 → 230V ac/dc, 0.1 s → 100h, SPDT
    • RS-stocknr. 102-6127
    Per stuk
    € 55,09
    Better World
    Schneider Electric Harmony Time Series DIN Rail Mount Timer Relay, 24 → 240 V ac, 24V dc, 2-Contact, 0.1 s
    • RS-stocknr. 872-5801
    • Fabrikantnummer RE22R1QMU
    Per stuk
    € 44,33
    RS PRO Solid State Interface Relay, 30 Vdc Control, 100 mAdc Load, DIN Rail Mount
    • RS-stocknr. 905-4277
    Per stuk
    € 29,31
    Finder 38 Series Electromechanical Interface Relay, DIN Rail Mount, 24V dc Coil, SPDT, 1-Pole
    • RS-stocknr. 386-4419
    • Fabrikantnummer 38.51.7.024.0050
    Per stuk
    € 19,01
    RS PRO DIN Rail Mount Timer Relay, 12 → 230V ac/dc, 0.1 s → 100h, DPDT
    • RS-stocknr. 102-6123
    Per stuk
    € 50,64
    RS PRO DIN Rail Mount Timer Relay, 230 V ac, 24V ac/dc, 3-Contact, 0.1 → 100h, 1-Function, SPDT
    • RS-stocknr. 119-803
    Per stuk
    € 21,95
    RS PRO DIN Rail Mount Timer Relay, 12 → 230V ac/dc, 0.1 s → 100h, SPDT
    • RS-stocknr. 102-6129
    Per stuk
    € 42,80
    Omron H3CR Series DIN Rail, Panel Mount Timer Relay, 12 → 48 V dc, 24 → 48V ac, 2-Contact, 0.05 s
    • RS-stocknr. 113-8128
    • Fabrikantnummer H3CR-A AC24-48/DC12-48
    Per stuk
    € 99,95
    Omron G3NA Series Solid State Relay, 20 A Load, DIN Rail Mount, 264 V ac Load, 24 V dc Control
    • RS-stocknr. 794-8274
    • Fabrikantnummer G3NA-220B-UTU DC5-24
    Per stuk
    € 34,50
    Phoenix Contact PLC-RSC-24DC/21 Series Interface Relay, DIN Rail Mount, 24V dc Coil, SPDT, 1-Pole, 6A Load
    • RS-stocknr. 358-8301
    • Fabrikantnummer 2966171
    Per stuk
    € 11,72
    Eaton Phase, Voltage Monitoring Relay, 200 → 500V ac, DIN Rail
    • RS-stocknr. 179-3516
    • Fabrikantnummer 184789 EMR6-F500-G-1
    Per stuk
    € 110,09
    Siemens Thermistor Motor Protection Monitoring Relay, SPDT, DIN Rail
    • RS-stocknr. 175-2269
    • Fabrikantnummer 3RN2000-1AA30
    Per stuk
    € 79,30
    Schneider Electric Preventa XPS AF Safety Relay, 24V ac/dc, Single/Dual-Channel, 3 Safety Contacts
    • RS-stocknr. 360-4346
    • Fabrikantnummer XPSAF5130
    Per stuk
    € 271,89
    Better World
    Schneider Electric Harmony Time Series DIN Rail Mount Timer Relay, 12 → 240V ac/dc, 2-Contact, 0.1 s →
    • RS-stocknr. 791-2749
    • Fabrikantnummer RE17RMMW
    Per stuk
    € 60,21
    RS PRO PCB Mount Signal Relay, 5V Coil, 3A Switching Current, SPDT
    • RS-stocknr. 193-5853
    Per stuk
    € 32,46
    Omron H3DK-M Series DIN Rail Mount Timer Relay, 24-240V ac/dc, 4-Contact, 0.1 → 4320000s, DPDT
    • RS-stocknr. 264-1641
    • Fabrikantnummer H3DK-M2 AC/DC24-240
    Per stuk
    € 79,40
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