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Relays

A relay is a device used to remotely control an electrical circuit via another circuit. It is a key component in…

XPSAC5121 Preventa XPSAC - contrôleur - arrêt d'urgence - 24Vca/cc 
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module XPSAC - Emergency stop - 24 V AC DC - XPSAC5121
XPSAC5121
€170.04 €141.70
preorder Supply in process
RXM4AB2BD Miniature Plug-in relay - Zelio RXM  4 C/O  24 V DC  6 A  with LED 
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Miniature plug-in relay, 6 A, 4 CO, LED, 24 V DC - RXM4AB2BD
RXM4AB2BD
€8.29 €6.91
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dispatched within 24/48h
RXM4AB2B7 Miniature Plug-in relay - Zelio RXM  4 C/O  24 V AC  6 A  with LED 
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Miniature plug-in relay, 6 A, 4 CO, LED, 24 V AC - RXM4AB2B7
RXM4AB2B7
€9.52 €7.93
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RM35TF30
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multifunction phase control relay RM35-T - range 194..528 V AC - RM35TF30
RM35TF30
€158.72 €132.27
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XPSUAF13AP
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Preventa module Cat.4 potential free NC/NC, NO/NC & PNP/PNP 24vac/dc screw - XPSUAF13AP
XPSUAF13AP
€188.06 €156.72
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XPSAC3721 Preventa XPSAC - contrôleur - arrêt d'urgence - 230Vca 
XPSAC3721
€129.73 €108.11
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Zelio Time RE17 - relais tempo repos cde ext - 1OF - 24Vcc 24 à 240Vca  RE17RCMU
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Modular timing relay, 8 A, 1 CO, 1 s..100 h, off delay, 24...240 V AC - RE17RCMU
RE17RCMU
€37.98 €31.65
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RM35LM33MW
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Modular liquid level control relay, 5 A, 2 CO, 24...240 V AC/DC - RM35LM33MW
RM35LM33MW
€77.69 €64.74
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XPSAC5121P
XPSAC5121P
€153.95 €128.29
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Embase pour relais miniature - Zelio RXZ - avec contacts distincts - connecteurs RXZE2S114M
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Socket, separate contact, 10 A, relay type RXM3, screw connector, 250 V AC - RXZE2S114M
RXZE2S114M
€5.11 €4.26
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on-delay timing relay - 1 s..100 h - 24..240 V AC - 1 OC  RE17RAMU
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Modular timing relay, 8 A, 1 CO, 1 s..100 h, on delay, 24...240 V AC - RE17RAMU
RE17RAMU
€41.84 €34.87
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phase control relay RM17-T - range 183..528 V AC  RM17TG00
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Modular 3-phase supply control relay, 5 A, 1 CO, 208...480 V AC - RM17TG00
RM17TG00
€64.30 €53.58
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RE22R2MYMR
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Modular timing relay, 8 A, 2 CO, 0.05s…300h, multifunction, 24...240 V AC/DC - RE22R2MYMR
RE22R2MYMR
€93.25 €77.71
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RM35JA32MW
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Modular 1-phase current control relay, 5 A, 2 CO, 0.15…15 A,, 24…240 V AC/DC - RM35JA32MW
RM35JA32MW
€128.81 €107.34
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RXM4AB2P7 Miniature Plug-in relay - Zelio RXM  4 C/O  230 V AC  6 A  with LED 
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Miniature plug-in relay, 6 A, 4 CO, LED, 230 V AC - RXM4AB2P7
RXM4AB2P7
€9.25 €7.71
available In stock
dispatched within 24/48h

Understanding Relays

In practical terms, a relay remotely controls an electrical circuit through another circuit, while ensuring full isolation between the two. Imagine a switch you can operate electrically to control a circuit with a low-power signal. This functionality makes relays a crucial element in the automation and protection of electrical systems.

How Does a Relay Work?

Relays typically operate using an electromagnet. When the electromagnet is activated, it generates a magnetic field that moves a mechanism to open or close a circuit. This method allows you to control electrical loads without risk to the user, eliminating the need for direct human interaction with the controlled circuits.

A conventional electromechanical relay consists of three main components:

  • A coil
  • An armature
  • Contacts

When current flows through the coil, it creates a magnetic field that attracts the armature. This movement opens or closes the contacts, activating the desired electrical circuit.

Types of Electrical Relays Used in Industry

Relays play a central role in many electrical applications, offering an effective solution for controlling circuits in the industrial sector. At One-Elec, we offer a wide range of relays tailored for industrial use. Our selection includes plug-in relays, timer relays, safety relays, and control relays—each meeting specific needs. Below is an overview of the different types of relays available at competitive prices in our online shop.

Plug-in Relays

Plug-in relays are designed for easy installation on pre-fitted bases, allowing for quick and flexible setup. They are ideal for systems requiring regular maintenance, as they can be removed and replaced without disconnecting the cables. Thanks to their modular design, they enable circuits to be switched quickly and safely, simplifying on-site interventions for electrical professionals.

Featured Schneider Electric plug-in relays from the Zelio range include:

  • RXZE2S114M: A relay compatible with the RXM and REXL ranges, offering four contacts that support up to 10 A.
  • RXM4AB2P7: A mini-relay with an LED indicator and a lockable test function, ideal for applications requiring a control voltage of 230 V AC.
  • RSB2A080BDS: A double pole double throw (DPDT) relay with a control voltage of 24 V DC and a rated current of 8 A.

Schneider Timer Relays

Timer relays precisely control when a circuit is switched on or off. They are essential in scenarios like lighting, heating, or ventilation systems, where it’s necessary to delay or limit the operating time of equipment. These timers are both precise and flexible, helping to reduce energy costs—a definite advantage.

Featured Schneider Electric timers from the Zelio range:

  • RE17RMMW: A multifunction relay with a time delay range from 0.1 seconds to 100 hours.
  • RE17RCMU: Similar to the previous model but with an off-delay function.
  • RE17LAMW: A single-function relay, perfect for applications requiring a switch-on delay.

Schneider Safety Relays

Safety relays are crucial for protecting operators and machinery by ensuring immediate stops when necessary. They monitor safety devices such as emergency stop circuits, position switches, and sensors, guaranteeing maximum safety in industrial environments.

Two Schneider Electric safety relay models from the Preventa XPSU range in stock at One-Elec:

  • XPSUAF13AP: A multifunctional module with up to three safety contacts, compliant with the highest safety standards.
  • XPSUAB11CP: A more compact module, ideal for applications requiring a PL c/category 1 and SIL 1 safety level.

Control Relays

Control relays monitor electrical circuits to ensure the proper functioning and safety of industrial installations. For example, they can detect anomalies in circuits, helping prevent breakdowns and maintaining operational efficiency.

Featured Schneider Electric control relays from the Zelio range on One-Elec:

  • RM35TF30: A multifunction relay that monitors phase sequences and phase loss.
  • RM35LM33MW: Specialised in liquid level control, using resistive probes for accurate detection.
  • RM35JA32MW: A single-phase current control relay, perfect for lifting, packaging, or pumping applications.

Relays are indispensable products for industrial electrical installations, ensuring safety, efficiency, and precise control. Whether you’re looking to optimise processes, enhance safety, or automate systems, One-Elec has a relay in stock to meet your needs. Browse our catalogue to find the perfect relay for your industrial applications, all at the best prices.