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

18796 Products showing for Relays & Signal Conditioning

1 of 940
In Stock
Omron G2RV-ST Series Electromechanical Interface Relay, DIN Rail, 24V ac/dc Coil, SPDT, 12.6mA
  • RS Stock No. 271-1839
  • Mfr. Part No. G2RV-ST500 24VAC/DC
Subtotal (1 unit)
Kr. 188,97(exc. VAT)
Kr. 188,97/unit
Temporarily out of stock
Omron Panel Power Relay, 5V dc Coil, 10A Switching Current, SPDT
  • RS Stock No. 683-8722
  • Mfr. Part No. G2R-1-T DC5
Subtotal (1 unit)
Kr. 70,47(exc. VAT)
Kr. 70,47/unit
In Stock
TE Connectivity PCB Power Relay, 12V dc Coil, 40A Switching Current, SPST
  • RS Stock No. 185-9664
  • Mfr. Part No. 2027395-5
Subtotal (1 unit)
Kr. 110,76(exc. VAT)
Kr. 110,76/unit
In Stock
Hongfa Europe GMBH PCB Signal Relay, 12V dc Coil, 2A, DPDT
  • RS Stock No. 176-2938
  • Mfr. Part No. HFD2/012-S-D
Subtotal (1 pack of 2 units)
Kr. 31,23(exc. VAT)
Kr. 15,615/unit
Temporarily out of stock
Omron Non-Latching Relay, 21V dc Coil, 6A Switching Current, SPDT
  • RS Stock No. 230-5174
  • Mfr. Part No. G2RV-1-S-G DC21
Subtotal (1 unit)
Kr. 161,53(exc. VAT)
Kr. 161,53/unit
In Stock
RS Better World
Schneider Electric Harmony Relay RXG 8 Way 300V DIN Rail Relay Socket, for use with RXG Series Relay
  • RS Stock No. 852-6904
  • Mfr. Part No. RGZE1S48M
Subtotal (1 unit)
Kr. 70,37(exc. VAT)
Kr. 70,37/unit
In Stock
Omron H3DT Series DIN Rail Timer Relay, 2-Contact, 240 V dc 24V ac, 240 V ac, 0.1 s to 100 h, Multifunction-Function,
  • RS Stock No. 106-6237
  • Mfr. Part No. H3DT-N1 24-240VAC/DC
Subtotal (1 unit)
Kr. 1 186,75(exc. VAT)
Kr. 1 186,75/unit
In Stock
Phoenix Contact RIF-0-RPT-24DC/21 Series Interface Relay, DIN Rail, 24V dc Coil, SPDT
  • RS Stock No. 794-3771
  • Mfr. Part No. 2903370
Subtotal (1 unit)
Kr. 117,28(exc. VAT)
Kr. 117,28/unit
In Stock
Panasonic Automotive Relay, 12V dc Coil, 40A Switching Current, SPDT
  • RS Stock No. 178-2012
  • Mfr. Part No. CB112
Subtotal (1 unit)
Kr. 50,22(exc. VAT)
Kr. 50,22/unit
In Stock
Finder 80 Series DIN Rail Timer Relay, 1-Contact, 12 to 240 V ac/dc 12V ac, 240 V ac, 0.1 to 20 min, 0.1 to 24 h, 0.1 to
  • RS Stock No. 446-0327
  • Mfr. Part No. 80.01.0.240.0000
Subtotal (1 unit)
Kr. 799,77(exc. VAT)
Kr. 799,77/unit
In Stock
Releco Power Relay, 24V dc Coil, 10A Switching Current, SPDT
  • RS Stock No. 341-5146
  • Mfr. Part No. C10-A10X / DC 24 V
Subtotal (1 unit)
Kr. 130,43(exc. VAT)
Kr. 130,43/unit
In Stock
ENTES MCB Series DIN Rail Timer Relay, 1-Contact, 12 to 240 V dc V 24V ac, 240 V ac, 0.1 s to 30 h, 4-Function, 1 CO
  • RS Stock No. 628-908
  • Mfr. Part No. MCB-7
Subtotal (1 unit)
Kr. 234,18(exc. VAT)
Kr. 234,18/unit
In Stock
Eaton Zener Barrier, ATEX
  • RS Stock No. 703-7043
  • Mfr. Part No. MTL5511/RS
Subtotal (1 unit)
Kr. 2 531,34(exc. VAT)
Kr. 2 531,34/unit
In Stock
Motrona IT Series Signal Converter, RS422 Input, 30V dc, 9 V dc Supply
  • RS Stock No. 283-7534
  • Mfr. Part No. IT210
Subtotal (1 unit)
Kr. 5 078,91(exc. VAT)
Kr. 5 078,91/unit
In Stock
ABB CR Series Interface Relay, DIN Rail, 125V dc Coil, SPDT
  • RS Stock No. 237-3138
  • Mfr. Part No. 1SVR405613R8200 CR-M125DC4
Subtotal (1 unit)
Kr. 134,15(exc. VAT)
Kr. 134,15/unit
In Stock
Hongfa Europe GMBH 2RM Series Interface Relay, DIN Rail, 12V dc Coil, DPDT, 8A
  • RS Stock No. 137-2110
  • Mfr. Part No. 2RM-12-3
Subtotal (1 unit)
Kr. 94,03(exc. VAT)
Kr. 94,03/unit
In Stock
Omron H3DK-M Series DIN Rail Timer Relay, 4-Contact, 24 to 240 V ac/dc 24V ac, 240 V ac, 0.1 to 4320000 s,
  • RS Stock No. 264-1641
  • Mfr. Part No. H3DK-M2 24-240VAC/DC
Subtotal (1 unit)
Kr. 1 133,72(exc. VAT)
Kr. 1 133,72/unit
In Stock
RS PRO 8 Way 300V DIN Rail Relay Socket, for use with RS PRO RKL Relays DPDT
  • RS Stock No. 121-7825
Subtotal (1 unit)
Kr. 70,22(exc. VAT)
Kr. 70,22/unit
In Stock
RS PRO RNC Series Interface Relay, DIN Rail, 12V ac/dc Coil, SPDT, 8A
  • RS Stock No. 144-1584
Subtotal (1 unit)
Kr. 219,57(exc. VAT)
Kr. 219,57/unit
In Stock
RS PRO Plug-in Power Relay, 24V dc Coil, 10A Switching Current, DPDT
  • RS Stock No. 450-0425
Subtotal (1 unit)
Kr. 97,40(exc. VAT)
Kr. 97,40/unit
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