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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

    16808 Products showing for Relays & Signal Conditioning

    9 of 841
    Phoenix Contact PSRmini PSR-MS21 Emergency Stop Safety Relay, 24V dc, Single Channel, 1 Safety Contacts
    • RS Stock No. 177-4033
    • Mfr. Part No. 2702192
    Each
    Kr. 1 699,76
    Turck 2 Channel Galvanic Barrier, Isolating Amplifier, NAMUR Sensor, Switch Input, Relay Output, ATEX, IECEx
    • RS Stock No. 808-6510
    • Mfr. Part No. IM1-22EX-R
    Each
    Kr. 2 513,28
    Finder PCB Mount Power Relay, 230V ac Coil, 16A Switching Current, 3PDT
    • RS Stock No. 282-6667
    • Mfr. Part No. 622382304000
    Each
    Kr. 211,64
    Omron Current Monitoring Relay, 1 Phase, SPDT, DIN Rail
    • RS Stock No. 819-3239
    • Mfr. Part No. K8AK-AW2 24VAC/DC
    Each
    Kr. 1 438,00
    Better World
    Schneider Electric Harmony Time Series DIN Rail Mount Timer Relay, 24 V dc, 24 → 240V ac, 2-Contact, 1 s
    • RS Stock No. 791-2758
    • Mfr. Part No. RE17RMXMU
    Each
    Kr. 851,14
    Finder Plug In Power Relay, 24V dc Coil, 12A Switching Current, DPDT
    • RS Stock No. 154-526
    • Mfr. Part No. 56.32.9.024.0040
    Each
    Kr. 158,56
    Panasonic PCB Mount Power Relay, 24V dc Coil, DPDT
    • RS Stock No. 399-8411
    • Mfr. Part No. JW2SN-DC24V
    Each (In a Pack of 5)
    Kr. 44,432
    TE Connectivity Surface Mount Signal Relay, 24V dc Coil, 2A Switching Current, DPDT
    • RS Stock No. 515-505
    • Mfr. Part No. 4-1462037-7 IM07GR
    Each
    Kr. 43,36
    Finder PCB Mount Power Relay, 24V dc Coil, 16A Switching Current, SPDT
    • RS Stock No. 282-6649
    • Mfr. Part No. 406190244001PAC
    Each
    Kr. 69,78
    ABB Temperature Monitoring Relay, DPDT, DIN Rail
    • RS Stock No. 876-5036
    • Mfr. Part No. 1SVR730712R0200 CM-MSS.32S
    Each
    Kr. 1 153,15
    WAGO 857 Series Solid State Relay, 0.1 A Load, DIN Rail Mount, 48 V dc Load, 30 V dc Control
    • RS Stock No. 180-3046
    • Mfr. Part No. 857-704
    Each
    Kr. 326,04
    Pilz PNOZ X PNOZ X3 Emergency Stop Safety Relay, 24 V dc, 230V ac, Dual-Channel, 3 Safety Contacts
    • RS Stock No. 245-1854
    • Mfr. Part No. 774318
    Each
    Kr. 2 991,15
    Sensata Crydom SERIES 1 Series Solid State Relay, 75 A rms Load, Surface Mount, 280 V rms Load, 32 V Control
    • RS Stock No. 291-2040
    • Mfr. Part No. D2475
    Each
    Kr. 1 084,74
    Finder Plug In Power Relay, 230V ac Coil, 12A Switching Current, 4PDT
    • RS Stock No. 154-598
    • Mfr. Part No. 56.34.8.230.0040
    Each
    Kr. 282,57
    RS PRO Plug In Power Relay, 240V ac Coil, 10A Switching Current, DPDT
    • RS Stock No. 450-0403
    Each
    Kr. 70,81
    Phoenix Contact 1 Channel Galvanic Barrier, Repeater power supply, Current Input, Current Output, ATEX
    • RS Stock No. 709-9644
    • Mfr. Part No. 2924016
    Each
    Kr. 3 199,77
    Phoenix Contact ETD-BL-1T-230 Series DIN Rail Mount Timer Relay, 24V, 2-Contact, 0.05 s → 1h, SPDT
    • RS Stock No. 877-8133
    • Mfr. Part No. 2905813
    Each
    Kr. 958,56
    Phoenix Contact MINI MCR Series Signal Conditioner, Current Input, Current Output, 9.6 → 30V dc Supply
    • RS Stock No. 849-6386
    • Mfr. Part No. 2902015
    Each
    Kr. 2 582,01
    GIC Signal Conditioner, Current, Voltage Input, Current, Voltage Output, 24V dc Supply
    • RS Stock No. 884-2458
    • Mfr. Part No. 2SC3D11CC3
    Each
    Kr. 1 220,14
    Carlo Gavazzi Solid State Relay, 30 A Load, Panel Mount, 600 V ac Load, 32 V dc Control
    • RS Stock No. 775-3079
    • Mfr. Part No. RGC1A60D30KKE
    Each
    Kr. 1 312,97
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