Relays & Signal Conditioning

At RS, we stock a large choice of relay switch 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 our relay switch products are from trusted electrical relay suppliers 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 operate electronically to turn AC or DC currents on or off within an electrical circuit. Relays operate similar to a typical light switch, where power is switched on and off when the switch lever is moved, but the main difference lies in how 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 switches 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 AC or DC 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' feature semiconductor switching elements; typically thyristors, triacs and diodes that transmit and energise 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.

Shop relays, relay accessories, and signal conditioners isolators at RS today.

Relay Accessories
Relay Accessories

Relays
Relays

Signal Conditioners & Isolators
Signal Conditioners & Isolators

17399 Products showing for Relays & Signal Conditioning

9 of 870
In Stock
ABB Jokab SSR32, 24V dc Safety Relay, 4 Safety Contacts, 4
  • RS Stock No. 176-0029
  • Mfr. Part No. 2TLA010052R0400 Sentry SSR32 24VDC
Subtotal (1 unit)
PHP24,463.79(exc. VAT)
PHP24,463.79/unit
In Stock
RS PRO 12OD Series DIN Rail Timer Relay, 1-Contact, 24 V dc 24V ac, 240 V ac, 0.3 s to 30 h, 1-Function, SPDT Switch
  • RS Stock No. 896-6810
Subtotal (1 unit)
PHP2,049.19(exc. VAT)
PHP2,049.19/unit
In Stock
Omron Power Relay, 24V dc Coil, 10A Switching Current, DPDT
  • RS Stock No. 271-1925
  • Mfr. Part No. MY2IN-GS-R DC24
Subtotal (1 unit)
PHP711.68(exc. VAT)
PHP711.68/unit
In Stock
Omron Power Relay, 110V ac, 120 V ac Coil, 10A Switching Current, DPDT
  • RS Stock No. 329-812
  • Mfr. Part No. LY2 110/120VAC
Subtotal (1 unit)
PHP1,730.85(exc. VAT)
PHP1,730.85/unit
In Stock
Pilz PNOZ X2.1, 24V ac/dc Safety Relay, 2 Safety Contacts, 1
  • RS Stock No. 239-1055
  • Mfr. Part No. 774306
Subtotal (1 unit)
PHP21,782.47(exc. VAT)
PHP21,782.47/unit
In Stock
Omron Power Relay, 110V ac Coil, 10A Switching Current, DPDT
  • RS Stock No. 215-1588
  • Mfr. Part No. LY2N AC100/110
Subtotal (1 unit)
PHP2,026.45(exc. VAT)
PHP2,026.45/unit
In Stock
Phoenix Contact Interface Relay Module Busbar
  • RS Stock No. 332-5813
  • Mfr. Part No. 2966786
Subtotal (1 unit)
PHP1,438.64(exc. VAT)
PHP1,438.64/unit
In Stock
Siemens 3RQ4 Series 24V ac/dc Relay 6A
  • RS Stock No. 629-397
  • Mfr. Part No. 3RQ4018-1AB00
Subtotal (1 pack of 10 units)
PHP28,739.00(exc. VAT)
PHP28,739.00/pack
Currently unavailable
Phoenix Contact RIF-0-RSC-24DC/21AU Series Interface Relay, DIN Rail, 24V dc Coil, SPDT, 9mA
  • RS Stock No. 175-0518
  • Mfr. Part No. 2903372
Subtotal (1 unit)
PHP913.74(exc. VAT)
PHP913.74/unit
In Stock
Tempatron TT33 Series Panel Timer Relay, 2-Contact, 100 to 240 V ac 100V ac, 240 V ac, 0.01 to 99.99 s,
  • RS Stock No. 217-6247
  • Mfr. Part No. TT33MH
Subtotal (1 unit)
PHP9,495.98(exc. VAT)
PHP9,495.98/unit
In Stock
Omron Power Relay, 12V dc Coil, 6A Switching Current, 4PDT
  • RS Stock No. 271-1933
  • Mfr. Part No. MY4-GS-R DC12
Subtotal (1 unit)
PHP713.51(exc. VAT)
PHP713.51/unit
In Stock
Better World
Schneider Electric Harmony Relay RXM 14 Way 250V DIN Rail Relay Socket, for use with RXZ Series Relay Sockets
  • RS Stock No. 884-1317
  • Mfr. Part No. RXZE2M114
Subtotal (1 unit)
PHP635.62(exc. VAT)
PHP635.62/unit
In Stock
Carlo Gavazzi RA48 Series Solid State Relay, 25 A Load, Panel Mount, 530 V ac Load, 32V dc Control
  • RS Stock No. 856-8380
  • Mfr. Part No. RA4825-D12
Subtotal (1 unit)
PHP4,835.20(exc. VAT)
PHP4,835.20/unit
In Stock
Better World
Schneider Electric Power Relay, 24V dc Coil, 8A Switching Current, 4PDT
  • RS Stock No. 884-1313
  • Mfr. Part No. RXM4AB2BD
Subtotal (1 unit)
PHP1,046.52(exc. VAT)
PHP1,046.52/unit
In Stock
RS PRO TCR Series Panel Timer Relay, 2-Contact, 100 to 125 V dc 24V ac, 0.1 s to 300 h, Multifunction-Function, DPDT
  • RS Stock No. 179-2922
Subtotal (1 unit)
PHP4,940.33(exc. VAT)
PHP4,940.33/unit
In Stock
RS PRO 4104 Series Signal Conditioner, Current Input, Current/Voltage Output, 16.8V, 30 V Supply
  • RS Stock No. 794-8549
Subtotal (1 unit)
PHP21,269.01(exc. VAT)
PHP21,269.01/unit
In Stock
Better World
Schneider Electric Harmony Relay Series Solid State Relay, 50 A Load, Panel Mount, 530 V ac Load, 140V ac Control
  • RS Stock No. 922-2076
  • Mfr. Part No. SSP3A250F7
Subtotal (1 unit)
PHP11,761.91(exc. VAT)
PHP11,761.91/unit
In Stock
Phoenix Contact PLC-RSC- 24DC/21-21 Series Interface Relay, DIN Rail, 24V dc Coil, DPDT, 18mA
  • RS Stock No. 434-1327
  • Mfr. Part No. 2967060
Subtotal (1 unit)
PHP1,579.44(exc. VAT)
PHP1,579.44/unit
In Stock
Omron G3NA Series Solid State Relay, 90 A Load, Panel Mount, 240 V ac Load, 32V Control
  • RS Stock No. 794-8271
  • Mfr. Part No. G3NA-225B-UTU DC5-24
Subtotal (1 unit)
PHP2,947.27(exc. VAT)
PHP2,947.27/unit
Stocked by manufacturer
Omron CSM Commom Sockets 8 Way 1000V Chassis Relay Socket, for use with Relay
  • RS Stock No. 266-259
  • Mfr. Part No. P2RFZ-08
Subtotal (1 unit)
PHP236.28(exc. VAT)
PHP236.28/unit
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