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Showing 41-60 of 78 products · 22 unavailable products hidden
Modbus RTU 16-Ch Relay Module, RS485 Interface, With Multiple Isolation Protection Circuits
An industrial-grade 16-channel relay module controlled via RS485 bus using the Modbus RTU protocol. Built-in isolation protection circuits — including power supply isolation, ADI magnetic isolation, optocoupler isolation, resettable fuse, and TVS diode — ensure safe, stable, and reliable operatio...
8-ch Ethernet Relay Module, Modbus RTU/Modbus TCP Protocol, PoE port Communication, With Various Isolation And Protection Circuits
An industrial-grade 8-channel relay module controlled via Ethernet, supporting Modbus RTU and Modbus TCP protocols. Features PoE power supply (IEEE 802.3af), optocoupler isolation, reverse-polarity protection, and a rail-mounted ABS enclosure for safe, easy installation. Supports multiple commun...
Adafruit Mini Relay FeatherWing - Non-Latching
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The Adafruit Non-Latching Mini Relay FeatherWing lets you control mains-powered devices and small appliances using any Feather microcontroller. Switch lamps, fans, solenoids, and other loads rated up to 250 VAC or DC — all from a compact FeatherWing form factor. This is the non-latching version,...
Relay SPDT Sealed
These are high quality Single Pole - Double Throw (SPDT) sealed relays. Use them to switch high voltage, and/or high current devices. This relay’s coil is rated up to 12V, with a minimum switching voltage of 5V. The contacts are rated up to 5A (@250VAC, 30VDC).
SparkFun Beefcake Relay Control Kit
Your 5V system can wield great power with this big, beefy relay board. How does 20A on the NC contacts and 10A on the NO contacts at 220VAC sound? The SparkFun Beefcake Relay Control Kit contains all the parts you need to get your high-power load under control. Only minimal assembly is required! ...
Relay Control PCB
A bare PCB for building a relay control circuit, based on SparkFun's Controllable Power Outlet tutorial. It allows you to switch high-voltage loads using a simple 0–5V GPIO signal from any microcontroller. Components must be sourced and soldered separately. Key Features Bare PCB – Solder your ...
Relay for micro:bit
The MonkMakes Relay for micro:bit is a solid-state (no moving parts) relay that allows an output of a micro:bit to turn things on and off. A micro:bit can turn an LED on and off directly, but anything more powerful requires something like a relay or a transistor. Using a transistor to switc...
Relay Shield v1.1
The Relay Shield v1.1 is an Arduino compatible smart module with 4 mechanical relays providing an easy way to control high voltage. The max switching power is 35VDC 70W for each channel. It can be directly controlled by Arduino/Crowduino through digital IOs with external 9V DC supply. Compared to...
Devicter Relay 1 Node V1.0 (ATmega 328) – with support OTA update
The devDuino Relay 1 Node V1.0 is a compact Arduino-compatible microcontroller board with a built-in mains power supply (110–220 V AC), a 10 A relay, and an nRF24L01+ wireless transceiver. It is designed for building wireless home automation networks with support for over-the-air (OTA) firmware u...
Spartan Arduino PLC 16RDA (Relay Output)
This Arduino-based Industrial PLC (Relay Output) features 8 inputs and 6 outputs(digital relay output). As it uses an Arduino Leonardo, you can directly program it through the USB, which is pretty easy to get started. The Spartan controllers are all standarised and can be programmed exactly ...
Industrial Modbus RTU 8-Channel Relay Module (D) with Digital Input and RS485 Interface
The Industrial Modbus RTU 8-Channel Relay Module (D) is a reliable RS485-controlled relay module with 8 digital inputs. Designed for industrial applications, it supports the Modbus RTU protocol and includes multiple isolation protections like power, magnetic, and TVS diode isolation. It features ...
Dual Ethernet 8-Channel Relay Module – PoE, Modbus RTU, Rail-Mount
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Introducing the Modbus POE ETH Relay (C) - Dual Ethernet Ports, 8-ChannelMaximize your industrial automation systems with the exceptional Modbus POE ETH Relay (C). Designed for reliability and robust performance, this 8-channel relay module takes control and connectivity to the next level with it...
4-Channel Industrial Modbus RTU Relay Module – 30A, RS485, LED Indicators, Rail-Mount
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The Waveshare Modbus RTU 4-Channel Relay Module provides reliable high-current switching for industrial automation over an RS485 bus. Each of the four SPDT relays handles loads up to 30A at 250VAC or 28VDC, making it suitable for controlling motors, lighting, HVAC systems, and other heavy-duty eq...
Modbus RTU 8-Channel Relay Module – 30A, RS485, DIN Rail Mount
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Robust Industrial 8-Channel Relay Module - Modbus RTU (E) with High-Current RS485 InterfaceUnlock unparalleled control within demanding industrial environments with our Modbus RTU 8-channel Relay Module (E). Meticulously engineered to facilitate superior handling of high current applications, thi...
8-Channel Modbus RTU Latching Relay Module (C) with RS485, Rail-Mounted
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The 8-Channel Modbus RTU Latching Relay Module (C) is an industrial-grade relay controller with RS485 communication, designed for reliable automation in demanding environments. The latching relays retain their state after power loss, ensuring consistent operation without manual reset. Communicat...
Luckfox Core1106 Smart 86 Box – 4″ 720×720 Touch Wall Panel, RV1106G2/G3, 8GB eMMC, RS485 + 2× Relay, Wi-Fi 6 Optional
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Four versions — check the Wireless option before you order This page sells all four factory versions of the Luckfox Core1106 Smart 86 Box. Two of them have Wi-Fi and Bluetooth fitted, and two do not. Wireless is not an add-on — it is soldered at the factory, so you cannot add it later. Pick your ...
16-Channel Ethernet Relay Module – Modbus, PoE Support, Isolation Protection
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The Waveshare Modbus POE ETH Relay 16CH is an industrial-grade 16-channel relay module controlled over Ethernet using Modbus RTU or Modbus TCP protocol. It features dual Ethernet ports for cascading, Power over Ethernet (PoE) support to IEEE 802.3af, and optocoupler-isolated relay drivers with fl...
4 channel 5V relay module with light coupling 5V
A 4-channel relay module with opto-isolated inputs for safe, reliable switching of high-power loads. Each relay is rated for up to 10A at 250VAC or 30VDC, making it suitable for controlling lights, motors, heaters, and other mains-powered devices from a microcontroller. The opto-isolators protec...
RP2350 6-Channel Industrial Relay Module – RS485/Pico HAT, Rail-Mount, Isolation Protection
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Industrial 6-Channel RP2350 Relay Module with Onboard RS485 / Pico HAT InterfacesElevate your industrial automation with the robust Industrial 6-Channel RP2350 Relay Module, a versatile and resilient solution for managing multiple high-powered devices with ease. This industrial-grade module featu...
RP2350 Pico Relay Module 6-Channel – RS485, Isolation Protection, Rail-Mount with Wireless
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Industrial-Grade 6-Channel RP2350 Relay Module – Versatility Meets RobustnessEnhance your industrial automation systems with the unparalleled reliability and flexibility of our Industrial 6-Channel RP2350 Relay Module. Engineered to meet the rigorous demands of modern industry, this robust module...
