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

17217 產品顯示為 Relays & Signal Conditioning

1 的 861
有庫存
Pilz PZE 9, 24V dc Safety Relay, 8 Safety Contacts, 1
  • RS庫存編號 245-1955
  • 製造零件編號 774150
小計（1 件）
TWD12,427.00(不含稅)
有庫存
Phoenix Contact PLC-RPT- 24DC/21-21AU Series Interface Relay, DIN Rail, 24V dc Coil, DPDT, 18mA
  • RS庫存編號 801-8475
  • 製造零件編號 2900338
小計（1 件）
TWD720.00(不含稅)
有庫存
Finder PCB Relay, 24V dc Coil, 6A Switching Current, SPDT
  • RS庫存編號 457-2846
  • 製造零件編號 34.51.7.024.0010
小計（1 件）
TWD215.00(不含稅)
暫時缺貨
Sensata / Crydom 1 Series Solid State Relay, 50 A Load, Panel Mount, 280 Vrms Load, 32V Control
  • RS庫存編號 291-2034
  • 製造零件編號 D2450-10
小計（1 件）
TWD1,998.00(不含稅)
有庫存
Better World
Schneider Electric Harmony Relay Series Solid State Relay, 25 A Load, Panel Mount, 300 V ac Load, 32V dc Control
  • RS庫存編號 904-5651
  • 製造零件編號 SSP1A125BDT
小計（1 件）
TWD1,606.00(不含稅)
有庫存
Phoenix Contact PLC-RSC-24DC/21 Series Interface Relay, DIN Rail, 24V dc Coil, SPDT, 9mA
  • RS庫存編號 358-8301
  • 製造零件編號 2966171
小計（1 件）
TWD495.00(不含稅)
有庫存
Finder 94 14 Way 250V ac Screw Relay Socket, for use with 55.32 Series Relay, 55.34, 85.04
  • RS庫存編號 400-9146
  • 製造零件編號 94.04SMA
小計（1 件）
TWD332.00(不含稅)
有庫存
Relpol PCB Power Relay, 230V ac Coil, 8A Switching Current, DPDT
  • RS庫存編號 123-2084
  • 製造零件編號 RM84-2012-35-5230
小計（1 件）
TWD432.00(不含稅)
有庫存
Omron G9SE, 24V dc Safety Relay, 4 Safety Contacts, 1
  • RS庫存編號 890-3382
  • 製造零件編號 G9SE-401 DC24
小計（1 件）
TWD5,509.00(不含稅)
有庫存
Omron H3DK Series DIN Rail Timer Relay, 2-Contact, 24 to 240 V ac/dc 24V ac, 240 V ac, 0.1 to 4320000 s,
  • RS庫存編號 264-1642
  • 製造零件編號 H3DK-S1 24-240VAC/DC
小計（1 件）
TWD1,751.00(不含稅)
有庫存
Crouzet Monitoring Relay, DPDT, DIN Rail, 240V ac 240 V dc
  • RS庫存編號 614-9347
  • 製造零件編號 84870700
小計（1 件）
TWD3,849.00(不含稅)
有庫存
Phoenix Contact Solid State Relay, 6V dc Control
  • RS庫存編號 801-7788
  • 製造零件編號 2967989
小計（1 件）
TWD1,336.00(不含稅)
有庫存
Finder 34 Series Solid State Relay, 6 A Load, PCB Mount, 24 V dc Load, 12V Control
  • RS庫存編號 533-7600
  • 製造零件編號 34.81.7.005.9024
小計（1 件）
TWD898.00(不含稅)
有限的庫存
Sensata / Crydom D2 Series Solid State Relay, 10 A Load, Panel Mount, 280 Vrms Load, 32V Control
  • RS庫存編號 346-895
  • 製造零件編號 D2410
小計（1 件）
TWD1,461.00(不含稅)
有庫存
Finder PCB Power Relay, 24V dc Coil, 10A Switching Current, SPDT
  • RS庫存編號 351-617
  • 製造零件編號 40.31.7.024.0000
小計（1 件）
TWD175.00(不含稅)
有庫存
Finder Pluggable Function Module for use with Finder Series
  • RS庫存編號 666-8015
  • 製造零件編號 99.02.9.024.99
小計（1 件）
TWD143.00(不含稅)
有庫存
ABB Monitoring Relay, 1 Phase, DPDT, DIN Rail, 720V ac
  • RS庫存編號 775-7930
  • 製造零件編號 1SVR730750R0400 CM-EFS.2S
小計（1 件）
TWD8,898.00(不含稅)
有庫存
Sensata / Crydom ED Series Solid State Relay, 5 A Load, DIN Rail Mount, 280 Vrms Load, 15V dc Control
  • RS庫存編號 740-1359
  • 製造零件編號 ED24D5
小計（1 件）
TWD678.00(不含稅)
有庫存
Finder 95 8 Way 250V ac PCB Relay Socket, for use with 44.52, 40.51 Series Relay, 44.62, 40.61, 41.52, 40.52, 41.61,
  • RS庫存編號 400-4141
  • 製造零件編號 95.15.2SMA
小計（1 包，共 3 件）
TWD150.90(不含稅)
有限的庫存
Phoenix Contact DIN Rail Power Relay, 230V ac Coil, 16A Switching Current, SPDT
  • RS庫存編號 507-9966
  • 製造零件編號 2961422
小計（1 件）
TWD393.00(不含稅)
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