Relay modules

By means of a relay, a circuit with much more power can be switched with a relatively small current.

Relay modules RTC Modules Digital storage modules Signal generator modules

99 results Sort by

Load previous

Waveshare Industrial Modbus RTU 8-ch Relay Module (B) with RS485 Interface, Multi Isolation Protection Circuits, 7~36V Power Supply Waveshare #Modbus RTU Relay (B) Robust Industrial Modbus RTU 8-ch Relay Module featuring RS485 interface and isolation protection. Supports 7~36V power, 8-channel output, and wide-temp range.
Out of stock
€ 42,00 Incl. VAT
Waveshare Modbus RTU 8-ch Latching Relay Module (C) with RS485 Interface, Multi Isolation Protection Circuits, Rail-mounted Case Waveshare #Modbus RTU Relay (C) This Modbus RTU 8-channel Latching Relay Module (C) offers seamless integration with automation systems via RS485. It features multi-isolation protection circuits for stable and safe operation, supports energy-efficient switching with eight latching relays, and is easy to install.
Out of stock
€ 53,50 Incl. VAT
Waveshare Industrial 1-Channel ESP32-S3 WiFi Relay Module, Supports WiFi / Bluetooth / RS485 Control, With Multiple Isolation Protection Circuits, Rail-Mount Case Waveshare #ESP32-S3-Relay-1CH Experience seamless connectivity with the Industrial 1-Channel ESP32-S3 WiFi Relay Module. Supports WiFi, Bluetooth, RS485 control, housed in an industrial-grade case for durability, and features multiple isolation protection circuits.
Out of stock
€ 26,75 Incl. VAT
Waveshare Industrial Modbus RTU 8-ch Relay Module (E) with RS485 Interface, 30A High Current, Multi Isolation Protection Circuits, Rail-mounted Case Waveshare #Modbus RTU Relay (E) This 8-channel relay module offers rugged performance with RS485 interface, 30A capacity, and multi-isolation protection. Easy rail-mounted installation for secure and precise control.
Out of stock
€ 70,25 Incl. VAT
Waveshare Industrial 6-Channel ESP32-S3 WiFi Relay Module, Supports WiFi / Bluetooth / RS485 control, Onboard RS485 / Pico HAT interfaces Waveshare #ESP32-S3-Relay-6CH The Industrial 6-Channel ESP32-S3 WiFi Relay Module enables seamless control via WiFi, Bluetooth, or RS485, offering reliability for complex tasks with six channels for simultaneous device operation.
Out of stock
€ 40,75 Incl. VAT
Waveshare Industrial Modbus RTU 8-ch Relay Module (D) With Digital Input and RS485 Interface, Multi Isolation Protection Circuits, 7~36V Power Supply Waveshare #Modbus RTU Relay (D) The Modbus RTU 8-channel Relay Module (D) is designed for seamless integration with robust RS485 communication, ideal for automation tasks. It features multi-isolation protection circuits and operates on 7 to 36V power, suitable for factory automation and energy management systems.
Out of stock
€ 48,50 Incl. VAT
Waveshare 8-ch Ethernet Relay Module, Modbus RTU/Modbus TCP Protocol, PoE port Communication, With Various Isolation And Protection Circuits Waveshare #Modbus POE ETH Relay Versatile 8-channel Ethernet Relay Module with PoE port, Modbus RTU & TCP support. Industrial-grade design for efficient automated process management.
Out of stock
€ 54,75 Incl. VAT
Waveshare Modbus RTU 32-Ch Relay Module, RS485 Interface, With Multiple Isolation Protection Circuits Waveshare #Modbus RTU Relay 32CH Industrial-grade Modbus RTU relay module with 32 channels, robust RS485 interface, and multiple isolation protection circuits for reliable automation and operation.
Out of stock
€ 84,50 Incl. VAT
Waveshare Modbus RTU 16-Ch Relay Module, RS485 Interface, With Multiple Isolation Protection Circuits Waveshare #Modbus RTU Relay 16CH The Modbus RTU 16-Ch Relay Module ensures reliable RS485 communication for industrial environments, featuring isolation circuits for protection against spikes and noise. Ideal for automation and remote control, it offers durability and compact rail-mount design for easy installation.
Out of stock
€ 61,25 Incl. VAT
Waveshare Dual Ethernet Ports 8-ch Relay Module (C), Modbus RTU Protocol, PoE Power Supply, With Various Isolation And Protection Circuits, Industrial Grade Rail-Mount Case Waveshare #Modbus POE ETH Relay (C) The Dual Ethernet Ports 8-ch Relay Module ensures robust solutions with Modbus RTU Protocol and PoE, offering seamless connectivity and uninterrupted operations in industrial settings.
Out of stock
€ 70,25 Incl. VAT
Waveshare 8-ch Ethernet Relay Module (B) With Digital Input, Modbus RTU/Modbus TCP Protocol, PoE Port Communication, With Various Isolation And Protection Circuits Waveshare #Modbus POE ETH Relay (B) The 8-channel Ethernet Relay Module (B) integrates with advanced systems via Modbus RTU and TCP. PoE port ensures efficient power and data transmission in demanding environments. Industrial-grade rail-mount case enhances longevity and reliability.
Out of stock
€ 64,00 Incl. VAT
Waveshare Industrial Modbus RTU 4-ch Relay Module with RS485 Interface, 30A High Current, Onboard LED Indicators, Multi Isolation Protection Circuits, Industrial Grade Rail-Mount Case Waveshare #Modbus RTU Relay 4CH The Industrial Modbus RTU 4-channel Relay Module offers robust RS485 interface, handling up to 30A high current. Features LED indicators for real-time monitoring and multi-isolation protection for enhanced reliability.
Out of stock
€ 47,00 Incl. VAT
Waveshare Raspberry Pi 8-ch Relay Expansion Board Waveshare #RPi Relay Board (B) Expand your Raspberry Pi's capabilities with this 8-channel Relay Board. Easily control multiple devices for home or industrial applications with reliable performance and easy setup.
Out of stock
€ 32,75 Incl. VAT
Waveshare 30-Ch Ethernet Relay Module, Modbus RTU/Modbus TCP Protocol, PoE Port Communication, With Various Isolation And Protection Circuits Waveshare #Modbus POE ETH Relay 30CH Enhance your control systems with the 30-Channel Ethernet Relay Module. Supports Modbus RTU/TCP, PoE for easy installation, and industrial-grade rail mounting. Features isolated circuits for safety and longevity.
Out of stock
€ 93,50 Incl. VAT
Waveshare 16-Ch Ethernet Relay Module, Modbus RTU / Modbus TCP Protocol, Ethernet Port Communication, Supports PoE Power Supply, With Various Isolation And Protection Circuits Waveshare #Modbus POE ETH Relay 16CH Experience seamless control with a 16-channel Ethernet Relay Module, featuring Modbus RTU & TCP for versatile communication, PoE support, and robust protection.
Out of stock
€ 74,25 Incl. VAT
Waveshare Quality 3-Ch Relay Expansion Board Designed For Jetson Nano, Optocoupler Isolation Waveshare #3-CH Relay for Jetson Nano Enhance your project with this reliable 3-channel relay board, featuring optocoupler isolation for protection and compact design for easy installation.
Out of stock
€ 26,50 Incl. VAT
Fibaro FIBEFGS-213 power relay Zwart Fibaro Compact and powerful, the Fibaro FIBEFGS-213 power relay offers seamless control of electrical devices, integrating effortlessly into smart homes, supporting up to 2500W.
Out of stock
€ 55,05 Incl. VAT
Velleman AUTORELAIS 1 x WISSEL Relay Switch for Precise Electrical Applications Velleman #960 Compact and versatile single-pole changeover relay for automating circuits in lighting, heating, and equipment systems.
Delivered in 3 to 7 days
€ 8,55 Incl. VAT
EtiamPro CODEKLAVIER with Vandal-Resistant Design and Dual Relay Outputs EtiamPro #HAA9350 Discover the robust CODEKLAVIER, designed to resist vandalism and harsh environments with dual relay outputs for reliable control.
Delivered in 0 to 0 days
€ 144,90 Incl. VAT
Shen Le Relay VOET VOOR KRACHTIG RELAIS, 14 pins, Compact Design Shen Le Relay #SO14P Engineered for robust relay connections, the VOET VOOR KRACHTIG RELAIS offers seamless integration and versatile setups with 14 pins.
Out of stock
€ 6,00 Incl. VAT
Shen Le Relay Voet voor Krachtig Relais - 8-Pin Relay Base 10A Shen Le Relay #SO8P Discover our Voet voor Krachtig Relais with 8-pin configuration and 10A capacity. Designed for seamless integration, it ensures efficient operation in demanding environments.
Out of stock
€ 6,00 Incl. VAT
Semco Efficient Relay Socket Base with Cable for Automotive Installations Semco #SO960 Optimize your automotive relay installations with this durable relay socket base. Pre-attached cable ensures secure connections and seamless setup for optimal performance.
Out of stock
€ 4,50 Incl. VAT
Semco VOET VOOR AUTORELAIS Relay Socket Interface Semco #SO960PCB The VOET VOOR AUTORELAIS ensures seamless integration with PCBs, offering a robust relay socket interface for enhanced precision and reliability.
Out of stock
€ 3,00 Incl. VAT
New

SparkFun Qwiic Relay - 1x1A DPDT Sparkfun #COM-30416 Effortlessly control high-power devices with the SparkFun Qwiic Relay. Featuring Omron G6K-2F-Y DC3 DPDT relay, it handles up to 1A at 30VDC or 0.3A at 125VAC.
Delivered in 5 to 10 days
€ 16,90 Incl. VAT
New

ECE DIL RELAIS - Precise Control & Optimal Performance, 5Vdc, 0.5A, 10W ECE #VR05R051A Discover the DIL RELAIS, offering precise control and optimal performance at 0.5A and up to 10W with a single MAAK contact configuration, rated at 5Vdc. Its compact design ensures easy integration in diverse circuits for efficient energy management.
Out of stock
€ 4,80 Incl. VAT
New

ECE DIL RELAIS 0.5A/10W max. 1 x WISSEL 5Vdc Switching Relay ECE #VR05R051C Reliable 0.5A/10W relay suitable for low-power applications, featuring a 5V DC supply and single change-over contact for durable performance.
Out of stock
€ 12,30 Incl. VAT
New

ECE DIL RELAIS - Precise Performance with 0.5A/10W Capacity ECE #VR05R121A The DIL RELAIS provides precise performance with a 0.5A/10W max capacity and a single MAAK contact type for efficient switching up to 12V DC.
Out of stock
€ 5,70 Incl. VAT
New

ECE DIL RELAIS - 0.5A Current & 10W Power, 12Vdc Relay ECE #VR05R121C Manage up to 0.5A current and 10W power effortlessly with the DIL RELAIS, featuring a single wissel contact and efficient 12Vdc operation.
Out of stock
€ 12,90 Incl. VAT
New

ECE DIL RELAIS High Precision Durable Relay, 0.5A/10W ECE #VR05R241C The DIL RELAIS, with a 0.5A/10W capacity and 24Vdc operation, ensures precision and durability for various applications.
Out of stock
€ 13,90 Incl. VAT
New

ECE DIL RELAIS 0.5A/10W Relay for 24Vdc Systems ECE #VR05R242A The DIL RELAIS offers swift switching for 24Vdc systems with 0.5A/10W rating. Dual MAAK contacts ensure reliable control in compact automation setups.
Out of stock
€ 11,00 Incl. VAT
New

Shen Le Relay KRACHTIG RELAIS - 10A Schakelvermogen, 24VDC-220VAC Compatibel Shen Le Relay #VR10HD122C Het KRACHTIG RELAIS is een elektrisch component met een schakelvermogen van 10A, compatibel met 24VDC-220VAC. Ontworpen met twee wisselcontacten en 12VDC besturingsspanning.
Out of stock
€ 6,50 Incl. VAT
New

Shen Le Relay Krachtig Relay 10A/24VDC-220VAC with Dual Switching Modes Shen Le Relay #VR10HD2402C The Krachtig Relay 10A/24VDC-220VAC switches two modes for up to 240Vac. Perfect for motors and automation, its durable design ensures long-lasting performance.
Out of stock
€ 7,65 Incl. VAT
New

Hg Relay VERTICAAL RELAIS 10A/30VDC-220VAC,1 x WISSEL 12Vdc Hg Relay #VR10V121C Experience seamless control with the VERTICAAL RELAIS 10A/30VDC-220VAC. Optimized for efficiency, this relay offers reliable performance with up to 10A at 30VDC and 220VAC.
Out of stock
€ 5,85 Incl. VAT
New

Hg Relay Verticaal Relais - Seamless Connectivity and Robust Switching Hg Relay #VR10V241C The Verticaal Relais offers robust switching up to 10A at 30VDC or 220VAC. Reliable with single changeover contact, it handles diverse voltages effortlessly. Compact vertical design saves space for efficient installations.
Out of stock
€ 5,85 Incl. VAT
New

Any brand Miniature Power Relay 15A/28VDC 125VAC SPDT Any brand #VR15M061C Compact and reliable 15A relay for switching circuits, suitable for home automation, electronics, and industrial controls.
Out of stock
€ 4,25 Incl. VAT
New

Any brand 15A/28VDC-125VAC Mini Relay for Precision Control in Compact Spaces Any brand #VR15M121C Experience reliable switching with the 15A/28VDC-125VAC Mini Relay. Designed for precision in compact spaces, it handles up to 7A at 220VAC, ideal for automated systems with varied voltage requirements.
Out of stock
€ 3,35 Incl. VAT
New

Ningbo Fw Miniatuur Relais for Efficient Power Control, 15A/28VDC, 125VAC Ningbo Fw #VR15M241C This miniatuur relais is designed for power control, rated for 15A/28VDC, 125VAC, and 7A/220VAC. It features 1 x wissel contact type for diverse switching capacity.
Out of stock
€ 3,25 Incl. VAT
New

Any brand DIL RELAIS 1A/30VCC-125VCA Relay Switch Any brand #VR1D062C Versatile relay switch with two interchangeable contacts, handling up to 6V DC. Supports 30V DC and 125V AC, ensuring reliable performance and easy integration into tight spaces.
Out of stock
€ 5,05 Incl. VAT
New

Any brand DIL RELAIS 1A/30VDC-125VAC 2 x WISSEL 12Vdc Precision Switching Relay Any brand #VR1D122C Compact and robust relay with dual changeover design for AC/DC circuits. Operates at 12Vdc, handling up to 1A for versatile and reliable functionality.
Out of stock
€ 5,05 Incl. VAT
New

Any brand DIL RELAIS 1A/30VDC-125VAC, Precision Dual-Changeover Contact Any brand #VR1D242C Seamless switching with DIL RELAIS, minimal energy consumption, reliable in varied circuits, 24Vdc coil voltage.
Out of stock
€ 5,05 Incl. VAT
New

Any brand DIL RELAIS 3A/120VAC 1 x WISSEL 6Vdc Any brand #VR3D061C6 Compact and efficient relay with 3A limit at 120VAC, featuring a single changeover contact for precise voltage handling. Designed for longevity and dependable performance.
Out of stock
€ 3,25 Incl. VAT
New

Any brand DIL RELAIS 3A/150VAC Precision Control Switch Any brand #VR3D121C6 The DIL RELAIS 3A/150VAC switch offers precision control and reliability with a 12Vdc SPDT contact for seamless integration in switching applications.
Out of stock
€ 3,25 Incl. VAT
New

Any brand KRACHTIG RELAIS with 3A/28VDC-220VAC Rating and Four Changeover Contacts Any brand #VR3HD2404C The KRACHTIG RELAIS operates at 3A/28VDC-220VAC, featuring four changeover contacts, ensuring reliable switching for complex circuits up to 240 VAC.
Out of stock
€ 7,75 Incl. VAT
New

Shen Le Relay Krachtig Relay 3A/28VDC-220VAC with 4 Changeover Contacts Shen Le Relay #VR3HD244C Powerful relay for seamless 24Vdc control with 3A rated current, compatible with 28VDC-220VAC. Ideal for industrial automation and safety systems.
Out of stock
€ 8,15 Incl. VAT
New

Any brand State-of-the-Art Solid State Power Relay, 3A 240V, Reliable Performance Any brand #VR3SS1A Experience seamless switching with our cutting-edge solid state power relay, featuring 3A 240V compatibility. Ensure smooth, reliable operation with zero maintenance for automated systems.
Out of stock
€ 27,45 Incl. VAT
New

Any brand VERTICAAL RELAIS 5A/30VDC-220VAC 2 x WISSEL 6Vdc - Reliable Switching Solutions Any brand #VR5V062CN The VERTICAAL RELAIS 5A/30VDC-220VAC provides reliable switching with dual changeover contacts for diverse electrical applications.
Out of stock
€ 6,45 Incl. VAT
New

Shen Le Relay VERTICAAL RELAIS - Robust 5A/30VDC-220VAC Dual Changeover Relay Shen Le Relay #VR5V122CN The VERTICAAL RELAIS is a robust relay featuring a 5A/30VDC-220VAC capacity and dual-changeover design. Ideal for automation, electronics, and industrial systems with 12Vdc operation.
Out of stock
€ 6,10 Incl. VAT
New

Shen Le Relay VERTICAAL RELAIS with 5A Current Capacity and Dual Changeover Contacts Shen Le Relay #VR5V242CN Our VERTICAAL RELAIS offers superior switching capabilities with 5A current capacity, supporting 30VDC to 220VAC. Ideal for automation, it minimizes interference and integrates easily with various circuits.
Out of stock
€ 6,60 Incl. VAT
New

Whadda Solid State Relais Module - 2 Kanalen Whadda #WPM463 Robuuste en betrouwbare module voor het schakelen van AC-belastingen. Biedt galvanische scheiding met optocoupler, snelle schakeltijd en stille werking. Geschikt voor AC-wisselstroom tot 240 VAC bij max. 2 A.
Delivered in 3 to 7 days
€ 11,10 Incl. VAT

The 3 most popular Relay modules



By means of a relay, a circuit with much more power can be switched with a relatively small current.

Customer reviews about Relay modules



RaffieOpencircuit 12V 10A relay Great product! Soldered and everything works again!
FloOpencircuit 24V Relay 10A Not tested. Packaging and delivery OK.
Harry LeeverOpencircuit 5V relay with adjustable delay (0S - 10S) Works well exactly what I needed
Don A.Opencircuit 24V Relay 10A Great relay + received quickly