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    Relays & Signal Conditioning

    We stock a large choice of relay products for a wide variety of applications. Within our range, you will find products such as latching and non-latching relays, solid state relays, interface relays and reed relays. All from trusted brands such as our own RS PRO brand, Omron, Finder, TE Connectivity, Panasonic, Phoenix Contact and more.

    What is a Relay?

    Relays are a type of switch that is operated electronically to turn on or off current within an electric circuit. Relays operate similar to a typical light switch, where power is switched on and off when the switch lever is moved, the main difference is that a relay is operated by an electrical circuit rather than manually pressed.

    Relays have many different uses and are often utilised in situations where isolation is necessary or when a circuit needs to be controlled with a low-power signal. There are also specialised types of relay that are used for very high power applications, these are referred to as contactors.

    Types of Relay

    • Electromechanical Relay (EMR): An electromechanical relay uses a physical moving arm, triggered by a voltage applied to the relay coil, this arm connects contacts within the output component of the relay. The movement of the arm allows an electrical circuit to be completed, allowing current to flow to the connected equipment. The physical components within the relays commonly make a "click" sound, which can be used as an audible operation indicator.
    • Solid State Relay (SSR): Solid state relays provide a similar function to an EMR but these do not contain any moving components, increasing long-term reliability. SSR's feature semiconductor switching elements, typically thyristors, triacs and diodes that transmits and energises the output signal. When activated, the input signal acts like a switch that allows a high-voltage signal to pass through the SSRs output components.
    Relay Accessories
    Relay Accessories
    Relays
    Relays
    Signal Conditioners & Isolators
    Signal Conditioners & Isolators

    16195 Products showing for Relays & Signal Conditioning

    9 of 810
    GEORGIN GN 25000 Series Isolation Amplifier, Current, Voltage Input, Analogue Output
    • RS stock no. 230-9469
    • Mfr. Part No. GN25000S
    1 Box of 1
    R 3 042,54
    Omron 8 Pin 250V ac DIN Rail Relay Socket, for use with MK2PD-I, MK2PD-S, MK2P-I, MK2PND-I, MK2PND-S, MK2PN-I, MK2PN-S,
    • RS stock no. 353-657
    • Mfr. Part No. PF083A-E
    Each
    R 121,45
    Omron Plug In Power Relay, 230V ac Coil, 10A Switching Current, 3PDT
    • RS stock no. 536-906
    • Mfr. Part No. MKS3PI-5 AC230
    Each
    R 301,62
    Omron PCB Mount Power Relay, 12V dc Coil, 10A Switching Current, SPDT
    • RS stock no. 479-6496
    • Mfr. Part No. G5Q-1-EU DC12 (TY)
    Each
    R 38,66
    Omron PCB Mount Force Guided Relay, 24V dc Coil Voltage, 4 Pole, 3PST, SPST
    • RS stock no. 548-038
    • Mfr. Part No. G7SA-3A1B DC24
    Each
    R 830,60
    Omron Surface Mount Signal Relay, 24V dc Coil, 2A Switching Current, DPDT
    • RS stock no. 213-2170
    • Mfr. Part No. G6S-2G DC24
    Each
    R 181,23
    TE Connectivity PCB Mount Power Relay, 24V dc Coil, 10A Switching Current, SPDT
    • RS stock no. 791-7602
    • Mfr. Part No. 1-1721150-5
    Each
    R 34,22
    Phoenix Contact RIF-1-RPT-LDP-12DC/1X21 Series Relay Module, DIN Rail Mount, 12V dc Coil, SPDT, 1-Pole
    • RS stock no. 890-3907
    • Mfr. Part No. 2906224
    Each
    R 255,25
    Finder PCB Mount Power Relay, 24V dc Coil, 12A Switching Current, 4PDT
    • RS stock no. 253-3580
    • Mfr. Part No. 56.44.9.024.0000
    Each
    R 602,88
    Omron PCB Mount Power Relay, 5V dc Coil, 16A Switching Current, SPDT
    • RS stock no. 365-0529
    • Mfr. Part No. G2RL-1-E DC5
    Each
    R 86,03
    Siemens SIRIUS 3SK1 Safety Monitoring Safety Relay, 24V dc, Single Channel, 2 Safety Contacts
    • RS stock no. 202-1667
    • Mfr. Part No. 3SK1112-2BB40
    Each
    R 3 134,16
    Pepperl + Fuchs 1 Channel Zener Barrier, ATEX
    • RS stock no. 793-4266
    • Mfr. Part No. 261552
    Each
    R 2 313,03
    Omron PCB Mount Latching Power Relay, 12V dc Coil, 5A Switching Current, SPDT
    • RS stock no. 683-8747
    • Mfr. Part No. G2RK-1 DC12
    Each
    R 142,15
    Omron PCB Mount Power Relay, 110V ac Coil, 10A Switching Current, 3PDT
    • RS stock no. 536-899
    • Mfr. Part No. MKS3PI5AC110
    Each
    R 290,64
    Omron PYF 14 Pin 250V ac DIN Rail Relay Socket, for use with MY4IN, MY4IN1, MY4IN1-D2, MY4IN-CR, MY4IN-D2, MY4N, MY4N1,
    • RS stock no. 196-6147
    • Mfr. Part No. PYF14A-N
    Each
    R 199,05
    Omron Plug In Power Relay, 24V dc Coil, 5A Switching Current, 4PDT
    • RS stock no. 488-1831
    • Mfr. Part No. MY4IN DC24(S)
    Each
    R 245,15
    Crouzet DIN Rail Mount Timer Relay, 24 → 240 V ac, 24V dc, 1-Contact, 0.1 s → 100h, 1-Function, SPDT
    • RS stock no. 774-0308
    • Mfr. Part No. 88827115
    Each
    R 1 339,24
    Panasonic PCB Mount Automotive Relay, 12V dc Coil Voltage, 20A Switching Current, DPDT
    • RS stock no. 699-5721
    • Mfr. Part No. ACJ5112
    Each
    R 105,74
    Omron G9SE Emergency Stop Safety Relay, 24V dc, Dual-Channel, 2 Safety Contacts
    • RS stock no. 265-5203
    • Mfr. Part No. G9SE-201 DC24
    Each
    R 2 630,43
    Omron Plug In Power Relay, 110V ac Coil, 10A Switching Current, DPDT
    • RS stock no. 215-1588
    • Mfr. Part No. LY2N AC100/110
    Each
    R 485,41
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