Relays

Relays are electromagnetic switches powered by a relatively small current and thanks to their structure they can both switch off or amplify a much larger current. They have been largely used in the telecom industry since the 19th century, as well as in the industrial and automotive sectors. Their application has now extended to computing and medical research, making relays a fundamental component for devices used in everyday life.

How does a general purpose relay work?

Relays work based on electromagnetic force. The core of a relay is made of a coil of wire (commonly copper, which is low-resistance and facilitates power transmission) which becomes a magnet when it receives an electric current.

They work as a bridge between devices, receiving an input signal from the first one and transmitting an output to the second. The electromagnetic current generated by the electrical input from the first device on the relay causes the contacts to open or close, determining the transmission or the blockage of the electrical signal to the second device.

What is a general purpose relay used for?

There are different kinds of relays suited for different applications:

  • Latching relays: they can be operated by a magnetic or mechanical system, and can feature a single or a double-winding coil. Their position stays where it was when the circuit was last powered. They're commonly used to operate automatic doors and gates, as well as in lighting.
  • Non latching relays: differ from how latching relays work as non-latching relays go back to their initial position when the power is removed from the circuit. Normally found in push-button applications such as keyboards.
  • High frequency and RF relays: most commonly used in radio system, computing, testing and industrial equipment where high voltages are involved and standard relays cannot support an efficient function. An example of application is in radio devices: relays separate the circuits responsible for receiving and transmitting high frequency signals.

Whatever the relay is you are looking for, we offer a broad range from the most trusted suppliers worldwide, such as Panasonic, Omron, TE Connectivity and our very own RS Pro.

Automotive Relays
Automotive Relays
Earth Leakage Relays
Earth Leakage Relays
Electromechanical Interface Relays
Electromechanical Interface Relays
Force Guided Relays
Force Guided Relays
HF & RF Relays
HF & RF Relays
Monitoring Relays
Monitoring Relays
Power Relays
Power Relays
Reed Relays
Reed Relays
Safety Relays
Safety Relays
Signal Relays
Signal Relays
Solid State Interface Relays
Solid State Interface Relays
Solid State Relays
Solid State Relays
Timer Relays
Timer Relays

17294 Produits présentés pour Relays

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1 sur 865
En stock
Phoenix Contact PCB Power Relay, 24V dc Coil, 6A Switching Current, SPDT
  • N° de stock RS 290-1416
  • Référence fabricant 2961105
Sous-total (1 unité)
7,83 €(TVA exclue)
7,83 €/unité
En stock
Finder PCB Relay, 24V dc Coil, 6A Switching Current, SPDT
  • N° de stock RS 457-2846
  • Référence fabricant 34.51.7.024.0010
Sous-total (1 unité)
7,35 €(TVA exclue)
7,35 €/unité
Temporairement en rupture de stock
Omron PCB Signal Relay, 12V dc Coil, 1A, DPDT
  • N° de stock RS 233-4186P
  • Référence fabricant G6K-2P-Y DC12
Sous-total 1 unité (conditionné en ruban)
6,23 €(TVA exclue)
6,23 €/unité
En stock
Phoenix Contact PLC-RSC-24DC/21 Series Interface Relay, DIN Rail, 24V dc Coil, SPDT, 9mA
  • N° de stock RS 358-8301
  • Référence fabricant 2966171
Sous-total (1 unité)
11,84 €(TVA exclue)
11,84 €/unité
En stock
Finder PCB Power Relay, 24V dc Coil, 8A Switching Current, DPDT
  • N° de stock RS 182-9777
  • Référence fabricant 40.52.9.024.0000
Sous-total (1 unité)
6,28 €(TVA exclue)
6,28 €/unité
En stock
Siemens 3RP25 Series DIN Rail Timer Relay, 1-Contact, 24 V dc 24V ac, 0.05 to 600 s, 1 to 20 s, 1-Function, SPDT Switch
  • N° de stock RS 124-9410
  • Référence fabricant 3RP2540-1AB30
Sous-total (1 unité)
179,78 €(TVA exclue)
179,78 €/unité
En stock
Phoenix Contact DIN Rail Interface Relay, 24V dc Coil, 10mA Switching Current, SPDT
  • N° de stock RS 794-3771
  • Référence fabricant 2903370
Sous-total (1 unité)
9,54 €(TVA exclue)
9,54 €/unité
En stock
Finder PCB Power Relay, 12V dc Coil, 8A Switching Current, DPDT
  • N° de stock RS 182-9776
  • Référence fabricant 40.52.9.012.0000
Sous-total (1 unité)
6,28 €(TVA exclue)
6,28 €/unité
En stock
Finder 80 Series DIN Rail Timer Relay, 1-Contact, 12 to 240 V ac/dc 12V ac, 240 V ac, 0.1 to 20 min, 0.1 to 24 h, 0.1 to
  • N° de stock RS 446-0327
  • Référence fabricant 80.01.0.240.0000
Sous-total (1 unité)
73,41 €(TVA exclue)
73,41 €/unité
En stock
Pilz PNOZ X7, 230V ac Safety Relay, 2 Safety Contacts, 1
  • N° de stock RS 324-7268
  • Référence fabricant 774056
Sous-total (1 unité)
168,84 €(TVA exclue)
168,84 €/unité
En stock
Finder Relay, 24V dc Coil, 7A Switching Current, 4PDT
  • N° de stock RS 238-8165
  • Référence fabricant 55.34.9.024.0094
Sous-total (1 unité)
11,58 €(TVA exclue)
11,58 €/unité
En stock
Schneider Electric Power Relay, 12V dc Coil, 8A Switching Current, 4PDT
  • N° de stock RS 884-1540
  • Référence fabricant RXM4AB1JD
Sous-total (1 unité)
7,22 €(TVA exclue)
7,22 €/unité
En stock
Omron G9SE, 24V dc Safety Relay, 2 Safety Contacts
  • N° de stock RS 265-5203
  • Référence fabricant G9SE-201 DC24
Sous-total (1 unité)
134,04 €(TVA exclue)
134,04 €/unité
En stock
Schneider Electric Harmony Relay RXG Series Interface Relay, DIN Rail, 24V dc Coil, DPDT
  • N° de stock RS 203-5194
  • Référence fabricant RXG22BDPV
Sous-total (1 unité)
19,18 €(TVA exclue)
19,18 €/unité
En stock
Phoenix Contact PLC-OSC- 24DC/24DC/2 Solid State Relay, Control:300V DIN Rail
  • N° de stock RS 306-6558
  • Référence fabricant 2966634
Sous-total (1 unité)
28,55 €(TVA exclue)
28,55 €/unité
En stock
Finder PCB Power Relay, 12V ac Coil, 8A Switching Current, DPDT
  • N° de stock RS 708-3138
  • Référence fabricant 40.52.8.012.0000
Sous-total (1 unité)
7,62 €(TVA exclue)
7,62 €/unité
En stock
Omron PCB Power Relay, 110V dc Coil, 5A Switching Current, DPDT
  • N° de stock RS 205-1881
  • Référence fabricant G2R-2 DC110
Sous-total (1 unité)
6,16 €(TVA exclue)
6,16 €/unité
En stock
Gefran GRS-H Series Solid State Relay, 120 A Load, DIN Rail Mount, 480 V ac Load, 32V Control
  • N° de stock RS 221-7477
  • Référence fabricant F083582/ GRS-H-120-48-D-0-FAN60-0-0
Sous-total (1 unité)
265,53 €(TVA exclue)
265,53 €/unité
En stock
Schneider Electric Monitoring Relay, 1 Phase, DPDT, DIN Rail, 24V ac, 240 V ac
  • N° de stock RS 124-0187
  • Référence fabricant RM22UA32MR
Sous-total (1 unité)
129,07 €(TVA exclue)
129,07 €/unité
En stock
Phoenix Contact PLC-RSC- 24DC/21-21 Series Interface Relay, DIN Rail, 24V dc Coil, DPDT, 18mA
  • N° de stock RS 434-1327
  • Référence fabricant 2967060
Sous-total (1 unité)
15,61 €(TVA exclue)
15,61 €/unité
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