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

17224 產品顯示為 Relays & Signal Conditioning

2 的 862
有庫存
Better World
Schneider Electric PCB Power Relay, 24V dc Coil, 6A Switching Current, SPDT
  • RS庫存編號 179-7323
  • 製造零件編號 RSL1AB4BD
小計（1 件）
TWD288.00(不含稅)
有庫存
Finder Power Relay, 24V dc Coil, 12A Switching Current, DPDT
  • RS庫存編號 154-526
  • 製造零件編號 56.32.9.024.0040
小計（1 件）
TWD425.00(不含稅)
有庫存
Finder Relay, 24V dc Coil, 7A Switching Current, 4PDT
  • RS庫存編號 238-8165
  • 製造零件編號 55.34.9.024.0094
小計（1 件）
TWD481.00(不含稅)
有庫存
Finder Pluggable Function Module
  • RS庫存編號 292-8095
  • 製造零件編號 99.01.9.024.99
小計（1 件）
TWD206.00(不含稅)
有庫存
Panasonic PCB Force Guided Relay, 24 V dc Coil Voltage, 4-Pole, 4PDT
  • RS庫存編號 815-4837
  • 製造零件編號 SF4D-DC24V
小計（1 件）
TWD1,111.00(不含稅)
有庫存
Phoenix Contact PCB Power Relay, 24V dc Coil, 8A Switching Current, DPDT
  • RS庫存編號 508-0023
  • 製造零件編號 2961192
小計（1 件）
TWD244.00(不含稅)
暫時缺貨
Phoenix Contact 3RS7005 Series Signal Conditioner, Current/Voltage Output, 24V dc Supply, ATEX, IECEx
  • RS庫存編號 652-8425
  • 製造零件編號 2708863
小計（1 件）
TWD18,470.00(不含稅)
有庫存
Finder 85 Series Snap-On Timer Relay, 2-Contact, 110 to 125 V dc 24V ac, 5 to 100 h, 0.05 to 100 s, 3 to 100 min,
  • RS庫存編號 450-4714
  • 製造零件編號 85.02.0.024.0000
小計（1 件）
TWD1,932.00(不含稅)
有庫存
TE Connectivity Power Relay, 240V ac Coil, 30A Switching Current, DPST
  • RS庫存編號 235-5481
  • 製造零件編號 T92P7A22-240 6-1393211-2
小計（1 件）
TWD767.00(不含稅)
有庫存
Finder Flange Power Relay, 230V ac Coil, 16A Switching Current, DPDT
  • RS庫存編號 282-6682
  • 製造零件編號 628282304000
小計（1 件）
TWD819.00(不含稅)
有庫存
Finder PCB Power Relay, 24V dc Coil, 10A Switching Current, SPDT
  • RS庫存編號 382-9731
  • 製造零件編號 40.51.9.024.0000
小計（1 件）
TWD185.00(不含稅)
有庫存
Finder PCB Power Relay, 24V dc Coil, 8A Switching Current, DPDT
  • RS庫存編號 182-9777
  • 製造零件編號 40.52.9.024.0000
小計（1 件）
TWD224.00(不含稅)
有庫存
Better World
Schneider Electric Monitoring Relay, 3 Phase, DPDT, DIN Rail, 528V ac
  • RS庫存編號 146-474
  • 製造零件編號 RM35UB330
小計（1 件）
TWD8,349.00(不含稅)
製造商存貨
Releco CT3-E Series Timer Relay, 2-Contact, 90 to 265 V dc 230V ac, 0.2 to 30 s, 0.2 to 30 min, 1-Function
  • RS庫存編號 459-4341
  • 製造零件編號 CT3-E30 / S
小計（1 件）
TWD3,327.00(不含稅)
有庫存
TE Connectivity Force Guided Relay, 24 V dc Coil Voltage, 2-Pole, DPDT
  • RS庫存編號 334-0143
  • 製造零件編號 V23047-A1024-A501 1-1393258-5
小計（1 件）
TWD529.00(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
Retaining Relay Clip Finder 40.31 Series Relay, 40.41 Series Relay 95
  • RS庫存編號 666-7993
  • 製造零件編號 094.91.3
小計（1 件）
TWD18.00(不含稅)
有庫存
Better World
Schneider Electric Power Relay, 24V ac Coil, 10A Switching Current, 3PDT
  • RS庫存編號 884-1470
  • 製造零件編號 RXM3AB1B7
小計（1 件）
TWD297.00(不含稅)
有庫存
Omron Power Relay, 12V dc Coil, 20A Switching Current, SPST
  • RS庫存編號 200-2020
  • 製造零件編號 G4A-1A-E DC12
小計（1 件）
TWD133.00(不含稅)
有庫存
Panasonic DK 250V ac PCB Relay Socket, for use with DY Series, DK Series
  • RS庫存編號 699-6027
  • 製造零件編號 DK2A-PS
小計（1 件）
TWD304.00(不含稅)
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