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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

    14629 Produits présentés pour Relays

    1 sur 732
    ABB DIN Rail Power Relay, 230V ac Coil, 16A Switching Current, SPDT
    • N° de stock RS 231-9985
    • Référence fabricant 2TAZ311000R2013 E297-16-11/230
    la pièce
    50,66 €
    TE Connectivity PCB Mount Power Relay, 24V dc Coil, 16A Switching Current, SPDT
    • N° de stock RS 189-4109
    • Référence fabricant RT314024 9-1393239-8
    la pièce
    4,11 €
    Panasonic Panel Mount Automotive Relay, 12V dc Coil Voltage, 40A Switching Current, SPDT
    • N° de stock RS 699-5960
    • Référence fabricant CB1-M-12V
    la pièce
    4,30 €
    ifm electronic Speed Monitoring Relay, SPDT, DIN Rail
    • N° de stock RS 100-562
    • Référence fabricant DD0203
    la pièce
    243,76 €
    Phoenix Contact Interface Relay, DIN Rail Mount, 24V ac/dc Coil, DPDT
    • N° de stock RS 195-4839
    • Référence fabricant 2900339
    la pièce
    17,99 €
    Omron PCB Mount Power Relay, 24V dc Coil, 25A Switching Current, 4PST-NO
    • N° de stock RS 684-0104
    • Référence fabricant G7J-4A-P DC24
    la pièce
    36,32 €
    Omron G3NA Series Solid State Relay, 20 A Load, DIN Rail Mount, 264 V ac Load, 24 V dc Control
    • N° de stock RS 794-8274
    • Référence fabricant G3NA-220B-UTU DC5-24
    la pièce
    35,90 €
    Omron Plug In Power Relay, 110 → 120V ac Coil, 5A Switching Current, 4PDT
    • N° de stock RS 794-8167
    • Référence fabricant MY4N AC110/120(S)
    la pièce
    11,92 €
    Celduc SK Series Solid State Relay, 4 A Load, PCB Mount, 275 V ac Load, 30 V dc Control
    • N° de stock RS 231-0933
    • Référence fabricant SKA20420
    la pièce
    28,88 €
    Phoenix Contact PCB Mount Power Relay, 24V dc Coil, 6A Switching Current, SPDT
    • N° de stock RS 290-1416
    • Référence fabricant 2961105
    la pièce
    17,72 €
    Finder PCB Mount Relay, 24V dc Coil, 6A Switching Current, SPDT
    • N° de stock RS 457-2846
    • Référence fabricant 34.51.7.024.0010
    la pièce
    7,17 €
    IDEM Viper SCR-31-i Screw Terminals Emergency Stop Safety Relay, 24V ac/dc, Dual-Channel, 3 Safety Contacts
    • N° de stock RS 123-2744
    • Référence fabricant 280002
    la pièce
    155,38 €
    Finder 80 Series Series DIN Rail Mount Timer Relay, 12 → 240V ac/dc, 1-Contact, 0.1 → 20 min, 0.1
    • N° de stock RS 446-0327
    • Référence fabricant 80.01.0.240.0000
    la pièce
    74,28 €
    WAGO 857 Series Solid State Relay, 3 A Load, Plug-In Mount, 24 V dc Load, 30 V dc Control
    • N° de stock RS 180-3062
    • Référence fabricant 857-161
    la pièce
    29,50 €
    Finder 48 Series Interface Relay, DIN Rail Mount, 24V dc Coil, SPDT, 1-Pole
    • N° de stock RS 457-2789
    • Référence fabricant 48.31.7.024.0050SPA
    la pièce
    16,24 €
    Finder PCB Mount Power Relay, 24V dc Coil, 8A Switching Current, DPDT
    • N° de stock RS 351-588
    • Référence fabricant 40.52.7.024.0000
    la pièce
    7,20 €
    Better World
    Schneider Electric Frequency Monitoring Relay, DPDT, DIN Rail
    • N° de stock RS 146-193
    • Référence fabricant RM35HZ21FM
    la pièce
    177,36 €
    ABB Vital 1 Vital Emergency Stop Safety Relay, 24V dc, Single Channel, 2 Safety Contacts
    • N° de stock RS 733-2436
    • Référence fabricant 2TLA020052R1000 Vital 1
    la pièce
    453,90 €
    Better World
    Schneider Electric Plug In Power Relay, 24V dc Coil, 8A Switching Current, 4PDT
    • N° de stock RS 884-1569
    • Référence fabricant RXM4AB3BD
    la pièce
    7,14 €
    Omron PCB Mount Power Relay, 12V dc Coil, 3A Switching Current, SPST
    • N° de stock RS 683-9191
    • Référence fabricant G5NB-1A DC12
    L'unité (en paquet de 5)
    2,17 €
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