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

18170 Products showing for Relays & Signal Conditioning

14 of 909
Turck Module
  • RS Stock No. 808-6594
  • Mfr. Part No. WM1
Each
Kr. 213,13(exc. VAT)
Omron Plug In Power Relay, 240V ac Coil, 10A Switching Current, 3PDT
  • RS Stock No. 827-8181
  • Mfr. Part No. MKS3PI-5 240VAC
Each
Kr. 148,87(exc. VAT)
Siemens Thermistor Motor Protection Monitoring Relay, SPDT, 24 → 240V ac/dc, DIN Rail
  • RS Stock No. 175-2270
  • Mfr. Part No. 3RN2000-1AW30
Each
Kr. 1 029,50(exc. VAT)
TE Connectivity Flange Mount, Panel Mount Power Relay, 24V dc Coil, 30A Switching Current, SPST-NO
  • RS Stock No. 279-8781
  • Mfr. Part No. 6-1419102-3
Each
Kr. 92,85(exc. VAT)
Better World
Schneider Electric Harmony Relay Series Solid State Relay, 25 A Load, Panel Mount, 300 V ac Load, 280 V ac Control
  • RS Stock No. 904-5655
  • Mfr. Part No. SSP1A125M7
Each
Kr. 538,48(exc. VAT)
Releco MRC 11 Pin 250V ac DIN Rail Relay Socket, for use with MRC Series 11-Pin Relay
  • RS Stock No. 403-229
  • Mfr. Part No. S3-B
Each
Kr. 133,97(exc. VAT)
Carlo Gavazzi Voltage Monitoring Relay, 3 Phase, SPDT, DIN Rail
  • RS Stock No. 209-8590
  • Mfr. Part No. DPB01CM44
Each
Kr. 2 205,85(exc. VAT)
Omron PCB Mount Force Guided Relay, 24V dc Coil Voltage, 6 Pole, 4PST, DPST
  • RS Stock No. 548-022
  • Mfr. Part No. G7SA-4A2B 24VDC
Each
Kr. 663,57(exc. VAT)
Durakool D14F 14 Pin 300V ac DIN Rail Relay Socket, for use with DX4, DXN Relays
  • RS Stock No. 276-5954
  • Mfr. Part No. D18F-4Z-C7
Each
Kr. 58,92(exc. VAT)
Siemens 3RF2 Series Solid State Relay, 20 A Load, Panel Mount, 230 V Load, 24 V dc Control
  • RS Stock No. 472-9042
  • Mfr. Part No. 3RF2120-1AA02
Each
Kr. 625,09(exc. VAT)
ABB CR-U Series Interface Relay, DIN Rail Mount, 24V dc Coil, 3CO (SPDT), 10A Load
  • RS Stock No. 231-9503
  • Mfr. Part No. 1SVR405622R1000 CR-U024DC3
Each
Kr. 173,66(exc. VAT)
TE Connectivity PCB Mount Non-Latching Relay, 12V dc Coil, 12A Switching Current, SPDT
  • RS Stock No. 718-1727
  • Mfr. Part No. 2-1415899-2
Each
Kr. 32,52(exc. VAT)
RS PRO 5 Pin 300V DIN Rail Relay Socket, for use with RFT Interface Relay
  • RS Stock No. 144-1610
Each
Kr. 45,13(exc. VAT)
Finder 48 Series Interface Relay Module, DIN Rail Mount, 24V Coil, SPDT, 1-Pole, 16A Load
  • RS Stock No. 286-8573
  • Mfr. Part No. 48.61.8.024.1060SPA
Each
Kr. 206,95(exc. VAT)
Sensata Crydom ED Series Solid State Relay, 5 A Load, DIN Rail Mount, 48 V dc Load, 32 V dc Control
  • RS Stock No. 740-1302
  • Mfr. Part No. ED06C5
Each
Kr. 272,39(exc. VAT)
Panasonic DPST Non-Latching Relay PCB Mount, 24V dc Coil, 5 A
  • RS Stock No. 650-2445
  • Mfr. Part No. DSP124F
Each
Kr. 84,60(exc. VAT)
Phoenix Contact DIN Rail Power Relay, 24V ac Coil, 12A Switching Current, DPDT
  • RS Stock No. 794-3727
  • Mfr. Part No. 2903333
Each
Kr. 138,08(exc. VAT)
Pilz PNOZsigma PNOZ s7 C Safety Relay 24V dc
  • RS Stock No. 268-7568
  • Mfr. Part No. 751107
Each
Kr. 2 011,62(exc. VAT)
Finder Plug In Relay, 24V ac Coil, 7A Switching Current, 4PDT
  • RS Stock No. 385-935
  • Mfr. Part No. 55.34.8.024.0040
Each
Kr. 122,87(exc. VAT)
RS PRO Plug In Power Relay, 24V dc Coil, 10A Switching Current, 4PDT
  • RS Stock No. 121-7821
Each
Kr. 205,03(exc. VAT)
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