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

17392 Products showing for Relays & Signal Conditioning

1 of 870
Limited stock
Omron 14 Way 250V ac DIN Rail Relay Socket, for use with Miniature Power Relays
  • RS Stock No. 186-4180
  • Mfr. Part No. PYFZ-14-E
Subtotal (1 unit)
PHP942.62(exc. VAT)
PHP942.62/unit
In Stock
Omron Power Relay, 24V dc Coil, 6A Switching Current, 4PDT
  • RS Stock No. 271-1934
  • Mfr. Part No. MY4-GS-R DC24
Subtotal (1 unit)
PHP647.32(exc. VAT)
PHP647.32/unit
In Stock
Better World
Schneider Electric Monitoring Relay, 3 Phase, 380/480 V ac Monitor Range, DPDT, DIN Rail, 380V ac, 480 V ac
  • RS Stock No. 124-0184
  • Mfr. Part No. RM22TR33
Subtotal (1 unit)
PHP12,997.88(exc. VAT)
PHP12,997.88/unit
In Stock
Omron Power Relay, 220V ac, 240 V ac Coil, 10A Switching Current, DPDT
  • RS Stock No. 271-1906
  • Mfr. Part No. MY2-GS-R AC220/240
Subtotal (1 unit)
PHP704.25(exc. VAT)
PHP704.25/unit
In Stock
RS PRO BM Series Signal Conditioner, Current Input, Current Output, 30V dc, 9 V dc Supply
  • RS Stock No. 466-2264
Subtotal (1 unit)
PHP23,433.55(exc. VAT)
PHP23,433.55/unit
In Stock
Better World
Schneider Electric DIN Rail Power Relay, 230V ac, 240 V ac Coil, 16A Switching Current, DPST
  • RS Stock No. 791-3067
  • Mfr. Part No. A9C30812
Subtotal (1 unit)
PHP6,512.45(exc. VAT)
PHP6,512.45/unit
In Stock
RS PRO LEDO Series DIN Rail Timer Relay, 12 to 230 V ac/dc 12V ac, 230 V ac, 0.1 s to 100 h, Multifunction-Function,
  • RS Stock No. 102-6125
Subtotal (1 unit)
PHP2,195.35(exc. VAT)
PHP2,195.35/unit
Temporarily out of stock
Better World
Schneider Electric DIN Rail Impulse Relay, 240V ac Coil
  • RS Stock No. 221-1097
  • Mfr. Part No. A9C15413
Subtotal (1 unit)
PHP2,764.11(exc. VAT)
PHP2,764.11/unit
In Stock
RS PRO Phase/Voltage Monitoring Relays, 1 Phase, 150 to 300 V ac Monitor Range, DIN Rail, 230V ac 270 V dc
  • RS Stock No. 558-898
Subtotal (1 unit)
PHP3,698.12(exc. VAT)
PHP3,698.12/unit
In Stock
Omron Power Relay, 24V dc Coil, 10A Switching Current, DPDT
  • RS Stock No. 828-7328
  • Mfr. Part No. LY2N 24VDC
Subtotal (1 unit)
PHP1,109.70(exc. VAT)
PHP1,109.70/unit
In Stock
Omron Power Relay, 24V dc Coil, 10A Switching Current, DPDT
  • RS Stock No. 271-1911
  • Mfr. Part No. MY2-GS-R DC24
Subtotal (1 unit)
PHP607.09(exc. VAT)
PHP607.09/unit
Temporarily out of stock
RS PRO Analogue Converter, Voltage, Current Input, Current, Voltage Output, 24V ac/dc Supply
  • RS Stock No. 606-326
Subtotal (1 unit)
PHP9,822.92(exc. VAT)
PHP9,822.92/unit
In Stock
Omron H3YN Series DIN Rail Timer Relay, 2-Contact, 24 V dc 24V ac, 0.1 s to 10 min, Multifunction-Function, DPDT Switch
  • RS Stock No. 215-4078
  • Mfr. Part No. H3YN-2 DC24
Subtotal (1 unit)
PHP6,596.17(exc. VAT)
PHP6,596.17/unit
In Stock
Omron H3CR Series Timer Relay, 2-Contact 100V ac, 125 V ac, 240 V ac, 0.05 to 1080000 s, DPDT Switch Configuration
  • RS Stock No. 264-1622
  • Mfr. Part No. H3CR-A8 100-240VAC/100-125VDC
Subtotal (1 unit)
PHP9,168.97(exc. VAT)
PHP9,168.97/unit
In Stock
ABB Power Relay, 24V dc Coil, 12A Switching Current, SPDT
  • RS Stock No. 775-5085
  • Mfr. Part No. 1SVR405611R1100 CR-M024DC2L
Subtotal (1 unit)
PHP898.82(exc. VAT)
PHP898.82/unit
In Stock
Better World
Schneider Electric Harmony Relay RXM 14 Way 250V DIN Rail Relay Socket, for use with Relais Series RSZ
  • RS Stock No. 884-1326
  • Mfr. Part No. RXZE2M114M
Subtotal (1 unit)
PHP666.57(exc. VAT)
PHP666.57/unit
In Stock
Better World
Schneider Electric Power Relay, 230V ac Coil, 8A Switching Current, 4PDT
  • RS Stock No. 884-1304
  • Mfr. Part No. RXM4AB2P7
Subtotal (1 unit)
PHP949.55(exc. VAT)
PHP949.55/unit
In Stock
RS PRO Monitoring Relay, 3 Phase, DIN Rail
  • RS Stock No. 132-172
Subtotal (1 unit)
PHP1,129.62(exc. VAT)
PHP1,129.62/unit
In Stock
WAGO Jumpflex Series Signal Conditioner, Current/Voltage Input, Current/Voltage Output, 24V dc Supply, UL
  • RS Stock No. 135-7392
  • Mfr. Part No. 857-401
Subtotal (1 unit)
PHP26,536.95(exc. VAT)
PHP26,536.95/unit
Limited stock
Omron LY 8 Way 2000V DIN Rail Relay Socket, for use with LY Series Bi-polar Relay
  • RS Stock No. 235-5440
  • Mfr. Part No. PTFZ-08-E
Subtotal (1 unit)
PHP553.62(exc. VAT)
PHP553.62/unit
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