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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

    16655 Products showing for Relays & Signal Conditioning

    7 of 833
    Omron PCB Mount Force Guided Relay, 24V dc Coil Voltage, 4 Pole, DPDT
    • RS stock no. 548-048
    • Mfr. Part No. G7SA-2A2B DC24
    Each
    R 839,15
    Omron PCB Mount Power Relay, 5V dc Coil, 10A Switching Current, SPST-NO
    • RS stock no. 683-9157
    • Mfr. Part No. G5LE-14 DC5
    Each (In a Pack of 5)
    R 37,71
    Releco MRC 5 Pin 250V ac DIN Rail Relay Socket, for use with IRC Series
    • RS stock no. 341-6874
    • Mfr. Part No. S-10
    Each
    R 143,56
    Omron Plug In Non-Latching Relay, 21V dc Coil, 6A Switching Current, SPDT
    • RS stock no. 230-5174
    • Mfr. Part No. G2RV-1-S-G DC21
    Each
    R 273,57
    Pilz PNOZsigma PNOZ s3 Emergency Stop Safety Relay, 24V dc, Dual-Channel, 2 Safety Contacts
    • RS stock no. 156-083
    • Mfr. Part No. 750103
    Each
    R 4 309,91
    Panasonic PCB Mount Power Relay, 12V dc Coil, 10A Switching Current, SPDT
    • RS stock no. 134-7930
    • Mfr. Part No. ALQ112
    Each
    R 39,23
    Panasonic PCB Mount Power Relay, 5V dc Coil, 10A Switching Current, SPST
    • RS stock no. 134-7908
    • Mfr. Part No. ALQ305
    Each
    R 32,61
    Releco Plug In Power Relay, 24V dc Coil, 10A Switching Current, SPDT
    • RS stock no. 341-5146
    • Mfr. Part No. C10-A10X / DC 24 V
    Each
    R 309,89
    Dold Voltage Monitoring Relay, DPDT, DIN Rail
    • RS stock no. 445-9052
    • Mfr. Part No. IL5881.12/100 DC12-280V 5-200kOHM
    Each
    R 5 765,09
    Releco PCB Mount Power Relay, 24V ac Coil, 6A Switching Current, SPDT
    • RS stock no. 341-5231
    • Mfr. Part No. C10-T13BX / AD 24 V
    Each
    R 527,05
    Pepperl + Fuchs 1 Channel Zener Barrier, ATEX
    • RS stock no. 793-4266
    • Mfr. Part No. 261552
    Each
    R 2 332,73
    Bernstein AG SCR Two Hand Control Safety Relay, 24V ac/dc, Single Channel, 4 Safety Contacts
    • RS stock no. 177-9019
    • Mfr. Part No. 6075111009
    Each
    R 3 768,16
    Lovato DIN Rail Mount Timer Relay, 24 → 240 V ac, 24 → 48V dc, 2-Contact, 0.1 s → 10days,
    • RS stock no. 905-3463
    • Mfr. Part No. TMP
    Each
    R 1 649,93
    RS PRO Plug In Power Relay, 230V ac Coil, 10A Switching Current, DPDT
    • RS stock no. 450-0324
    Each
    R 143,71
    Turck Plug In Power Relay, 24V dc Coil, 10A Switching Current, 3PDT
    • RS stock no. 842-3600
    • Mfr. Part No. C3-A30/024VDC
    Each
    R 1 135,72
    JM CONCEPT ULCOS 900 Series Universal Signal Converter, Current, Voltage, Potentiometer Signal, Resistance,
    • RS stock no. 232-8255
    • Mfr. Part No. ULCOS920D0
    Each
    R 3 642,14
    Schmersal PROTECT SRB SRB 301MC Emergency Stop Safety Relay, 24V ac/dc, Single/Dual-Channel, 3 Safety Contacts
    • RS stock no. 741-8650
    • Mfr. Part No. SRB 301MC-24V
    Each
    R 6 764,33
    Finder Force Guided Relay, 24V dc Coil Voltage, 6 Pole, 5NO/1NC
    • RS stock no. 249-4456
    • Mfr. Part No. 7S.16.9.024.5510
    Each
    R 2 612,55
    Finder DIN Rail Latching Modular Step Relay, 24V dc Coil, 16A Switching Current, SPST-NO
    • RS stock no. 159-751
    • Mfr. Part No. 20.21.9.024.0000
    Each
    R 698,19
    Carlo Gavazzi RM1E Series Solid State Relay, 25 A Load, Panel Mount, 265 V ac Load, 10 V dc Control
    • RS stock no. 857-7479
    • Mfr. Part No. RM1E23V25
    Each
    R 3 304,96
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