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

4 of 870
In Stock
ABB CRM DIN Rail Relay Socket, for use with CR-M Interface Relay
  • RS Stock No. 231-9512
  • Mfr. Part No. 1SVR405651R3000 CR-M4SS
Subtotal (1 unit)
PHP568.45(exc. VAT)
PHP568.45/unit
In Stock
RS PRO LCIS Series Interface Relay, DIN Rail, 24V dc Coil, SPDT
  • RS Stock No. 888-6877
Subtotal (1 pack of 5 units)
PHP4,832.30(exc. VAT)
PHP966.46/unit
Stocked by manufacturer
Omron G3FD Series Solid State Relay, 2 A Load, Plug-in Mount, 110 V ac/dc Load, 28V ac/dc Control
  • RS Stock No. 266-161
  • Mfr. Part No. G3FD-102SN-VD AC200/220
Subtotal (1 unit)
PHP2,084.20(exc. VAT)
PHP2,084.20/unit
In Stock
Pilz PNOZ X2.8P, 24V ac/dc, 240 V ac/dc Safety Relay, 3 Safety Contacts, 1
  • RS Stock No. 489-6350
  • Mfr. Part No. 777302
Subtotal (1 unit)
PHP18,699.47(exc. VAT)
PHP18,699.47/unit
In Stock
WAGO 857 Series Interface Relay, DIN Rail, 24V dc Coil, 1 CO
  • RS Stock No. 135-7375
  • Mfr. Part No. 857-304
Subtotal (1 unit)
PHP1,997.33(exc. VAT)
PHP1,997.33/unit
Temporarily out of stock
RS PRO TKB Series Timer Relay, 2-Contact, 24 V dc 24V ac, 0.5 to 10 min, 1-Function, DPDT Switch Configuration
  • RS Stock No. 179-2955
Subtotal (1 unit)
PHP3,188.95(exc. VAT)
PHP3,188.95/unit
Stocked by manufacturer
Omron H5CN Series DIN Rail Timer Relay, 1-Contact, 12 to 48 V dc 100V ac, 240 V ac, 1 s to 99 min 59 s, 1-Function, SPDT
  • RS Stock No. 746-3865
  • Mfr. Part No. H5CN-YCN DC12-48
Subtotal (1 unit)
PHP17,967.30(exc. VAT)
PHP17,967.30/unit
Temporarily out of stock
Omron Power Relay, 24V dc Coil, 6A Switching Current, 4PDT
  • RS Stock No. 271-1947
  • Mfr. Part No. MY4IN-GS-R DC24
Subtotal (1 unit)
PHP882.92(exc. VAT)
PHP882.92/unit
In Stock
Better World
Schneider Electric DIN Rail Power Relay, 24V ac/dc, 48 V ac/dc Coil, 16A Switching Current, DPST
  • RS Stock No. 791-3079
  • Mfr. Part No. A9C30212
Subtotal (1 unit)
PHP6,497.09(exc. VAT)
PHP6,497.09/unit
Temporarily out of stock
ABB Monitoring Relay, 1, 3 Phase, SPDT, DIN Rail, 240V ac 240 V dc
  • RS Stock No. 806-5939
  • Mfr. Part No. 1SVR740670R0200 CM-IWS.2P
Subtotal (1 unit)
PHP16,462.56(exc. VAT)
PHP16,462.56/unit
In Stock
Finder 94 14 Way 250V ac DIN Rail Relay Socket, for use with 55.34 Series Relay
  • RS Stock No. 189-3263
  • Mfr. Part No. 94.74SMA
Subtotal (1 unit)
PHP733.27(exc. VAT)
PHP733.27/unit
In Stock
RS PRO LCIS Series Interface Relay, DIN Rail, 115V ac/dc Coil, SPDT
  • RS Stock No. 888-6903
Subtotal (1 pack of 5 units)
PHP4,943.77(exc. VAT)
PHP988.754/unit
Stocked by manufacturer
ABB Power Relay, 110V ac Coil, 12A Switching Current, SPDT
  • RS Stock No. 775-5117
  • Mfr. Part No. 1SVR405611R7100 CR-M110AC2L
Subtotal (1 unit)
PHP784.97(exc. VAT)
PHP784.97/unit
In Stock
Omron Power Relay, 100V ac, 110 V ac Coil, 6A Switching Current, 4PDT
  • RS Stock No. 271-1927
  • Mfr. Part No. MY4-GS-R AC110/120
Subtotal (1 unit)
PHP666.83(exc. VAT)
PHP666.83/unit
In Stock
RS PRO DIN Rail Timer Relay, 3-Contact, 230 V dc 230V ac, 24 V ac, 0.1 to 100 h, 1-Function, SPDT Switch Configuration
  • RS Stock No. 119-803
Subtotal (1 unit)
PHP1,863.53(exc. VAT)
PHP1,863.53/unit
In Stock
Phoenix Contact PSR SCP, 230V ac/dc Safety Relay, 3 Safety Contacts
  • RS Stock No. 241-6091
  • Mfr. Part No. 2901428
Subtotal (1 unit)
PHP14,389.45(exc. VAT)
PHP14,389.45/unit
In Stock
Omron H3CR Series DIN Rail Timer Relay, 2-Contact, 100 to 125 V dc 100V ac, 240 V ac, 0.05 s to 300 h,
  • RS Stock No. 177-0098
  • Mfr. Part No. H3CR-AP AC100-240/DC100-125
Subtotal (1 unit)
PHP7,463.86(exc. VAT)
PHP7,463.86/unit
In Stock
Omron Power Relay, 24V dc Coil, 10A Switching Current, SPDT
  • RS Stock No. 353-837
  • Mfr. Part No. G2R-1-SN 24VDC (S)
Subtotal (1 unit)
PHP994.70(exc. VAT)
PHP994.70/unit
Currently unavailable
Schneider Electric RSB Series Interface Relay, Plug-in, 120V ac Coil, SPDT
  • RS Stock No. 212-4767
  • Mfr. Part No. RSB1A160F7S
Subtotal (1 pack of 20 units)
PHP17,677.24(exc. VAT)
PHP883.862/unit
In Stock
Omron Power Relay, 24V dc Coil, 5A Switching Current, 4PDT
  • RS Stock No. 827-8387
  • Mfr. Part No. MY4ZN-D2 24VDC (S)
Subtotal (1 unit)
PHP1,811.70(exc. VAT)
PHP1,811.70/unit
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