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

8 of 909
Tele Frequency, Voltage Mains and System Protection, 3 Phase, DIN Rail
  • RS Stock No. 266-4272
  • Mfr. Part No. NA003-M64
Each
Kr. 4 846,78(exc. VAT)
Better World
Schneider Electric RXZ 4 Pin <250V DIN Rail Relay Socket, for use with Plug-In Relay 782H with 4 C/O Contact,
  • RS Stock No. 884-1326
  • Mfr. Part No. RXZE2M114M
Each
Kr. 82,83(exc. VAT)
Omron MY2 8 Pin 250V ac DIN Rail Relay Socket, for use with MY2IN, MY2IN1, MY2IN1-D2, MY2IN-CR, MY2IN-D2, MY2N, MY2N1,
  • RS Stock No. 196-6169
  • Mfr. Part No. PYF08A-N
Each
Kr. 82,97(exc. VAT)
Eaton 2 Channel Zener Barrier, Switch/Proximity Detector Interface, NAMUR Sensor, Switch Input, Relay Output, ATEX
  • RS Stock No. 703-7040
  • Mfr. Part No. MTL5516C/RS
Each
Kr. 3 559,45(exc. VAT)
Weidmüller MOS Series Solid State Relay, 0.5 A Load, Chassis Mount, 48 V ac/dc Load, 24 V ac/dc Control
  • RS Stock No. 287-5345
  • Mfr. Part No. 8937980000
Each
Kr. 359,33(exc. VAT)
Finder PCB Mount Power Relay, 12V dc Coil, 10A Switching Current, SPDT
  • RS Stock No. 803-039
  • Mfr. Part No. 40.51.9.012.0000
Each
Kr. 53,88(exc. VAT)
Omron G3NA Series Solid State Relay, 264 V Load
  • RS Stock No. 215-5514
  • Mfr. Part No. G3NA-205B-UTU AC100-240
Each
Kr. 474,50(exc. VAT)
GIC DIN Rail Mount Timer Relay, 12 → 240V ac/dc, 1-Contact, 0.1 s → 100h, SPDT
  • RS Stock No. 818-4563
  • Mfr. Part No. 1CMDT0
Each
Kr. 479,58(exc. VAT)
Omron Plug In Power Relay, 24V dc Coil, 5A Switching Current, DPDT
  • RS Stock No. 329-7308
  • Mfr. Part No. G2R-2-SNDI 24VDC (S)
Each
Kr. 147,06(exc. VAT)
Sensata Crydom H16WD Series Solid State Relay, 50 A Load, Panel Mount, 690 V ac Load, 32 V dc Control
  • RS Stock No. 776-1096
  • Mfr. Part No. H16WD6050G-10
Each
Kr. 1 189,87(exc. VAT)
Finder 95 250V ac Screw Fitting Relay Socket, for use with 40.52, 40.61, 44.52, 44.62, 40.51 Series Relay
  • RS Stock No. 400-9130
  • Mfr. Part No. 95.05SPA
Each
Kr. 72,53(exc. VAT)
ENTES MCB Series DIN Rail Mount Timer Relay, 12 → 240V ac, 1-Contact, 0.1 sec → 999 hrs, SPDT
  • RS Stock No. 628-909
  • Mfr. Part No. MCB-8
Each
Kr. 315,40(exc. VAT)
Siemens Phase Monitoring Relay, 3 Phase, DPDT, 160 → 760V ac, DIN Rail
  • RS Stock No. 149-143
  • Mfr. Part No. 3UG5511-1BR20
Each
Kr. 1 769,08(exc. VAT)
Better World
Schneider Electric Harmony Relay RXM Series Interface Relay, DIN Rail Mount, 230V ac Coil, 4PDT, 4-Pole, 6A Load
  • RS Stock No. 203-5228
  • Mfr. Part No. RXM4AB2P7PVM
Each
Kr. 235,09(exc. VAT)
Schneider Electric Phase Monitoring Relay, 3 Phase, DPDT, <100V ac, DIN Rail
  • RS Stock No. 179-9432
  • Mfr. Part No. RM22TA33
Each
Kr. 1 686,94(exc. VAT)
Phoenix Contact PSI-MOS-RS232/FO1300 E Series Signal Conditioner, Current, Voltage Output, 18 → 32V dc Supply,
  • RS Stock No. 801-8958
  • Mfr. Part No. 2708588
Each
Kr. 13 570,99(exc. VAT)
TE Connectivity PCB Mount Power Relay, 12V dc Coil, 30A Switching Current, SPST
  • RS Stock No. 683-1412
  • Mfr. Part No. T9AS1D12-12
Each
Kr. 61,63(exc. VAT)
Releco Plug In Power Relay, 24V ac/dc Coil, 10A Switching Current, SPDT
  • RS Stock No. 341-5168
  • Mfr. Part No. C10-A10BX / AD 24 V
Each
Kr. 150,00(exc. VAT)
Better World
Schneider Electric RXZ 4 Pin <250V DIN Rail Relay Socket, for use with Plug-In Relay 782H with 4 C/O Contact,
  • RS Stock No. 884-1317
  • Mfr. Part No. RXZE2M114
Each
Kr. 74,02(exc. VAT)
TE Connectivity PCB Mount Power Relay, 24V dc Coil, 10A Switching Current, 3PDT
  • RS Stock No. 333-9963
  • Mfr. Part No. PT370024 6-1419111-1
Each
Kr. 112,18(exc. VAT)
Results per page
1
8
909

Related links