Modbus RTU Relay 32-channel module with RS485 interface - Waveshare 25140

Industrial relay module controlled via RS485 interface with Modbus RTU protocol support, offering 8 outputs with maximum load of 10 A. Equipped with galvanic isolation, opto-isolation, TVS diodes and DIN mounting, it ensures safe and reliable operation in harsh industrial conditions. Thanks to functions such as flash-on/off, configurable RS485 address (1-255), signaling diodes and wide power supply range (7-36 V), the module is perfect for building automation and device control. Waveshare Modbus RTU Relay (B)

Module with 2 SSR relays with a load of up to 3 A. The board is equipped with the ULN2003 system and communicates via a digital interface. Numato Lab SSRC20001-DC

Module with 2 relays 12 V with a load of up to 7 A. The board communicates via the Bluetooth wireless interface. Numato Lab BTRL002

This module allows independent control of two Omron G5LE-14-DC5 SPDT relays, supporting currents up to 10A. Thanks to built-in BSS138K MOSFETs, it can be controlled directly from 3.3V or 5V development boards such as Arduino or Raspberry Pi. Each channel is equipped with an LED to indicate relay activation and 5mm screw terminals for convenient circuit connection. Pololu 5665

Pololu 5424 enables precise switching of loads up to 10 A at voltages up to 30 V, providing galvanic isolation as well as silent and maintenance-free operation thanks to the use of a solid-state relay. Ideal for controlling devices in RC systems, automation, and projects requiring durability and reliability.

The module with 2 relays is designed for the M5Stack sets. It allows you to control devices with an operating voltage of up to 250 V AC and a current of up to 8 A or a voltage of 28 V DC and a current of 8 A. M5Stack U131

Module with 8 relays 24 V with a maximum switching current of 7 A. Communicates via the USB interface. Numato Lab RL80001-24

Module with 2 SSR relays with a load of up to 3 A. The board communicates via the USB interface. Numato Lab SSR20001-DC

Module with 32 relays and 8 GPIO pins and 8 analog inputs. It communicates via the RS485, USB or Ethernet interface and supports the Modbus RTU/TCP protocol. Numato Lab NLRM1002-A

Adafruit FeatherWing module with snap relay. It allows you to control high-power components using a microcontroller. It allows switching current to 2A (at 40VAC or 30VDC) and voltage up to 250VAC. Adafruit 2923

Module with the SLA-05VDC-SL-C relay with a maximum load of 30 A. The board is equipped with a Grove connector and is controlled by a digital signal. Seeed Studio 103020012

Pololu 5425 offers silent, reliable operation when switching currents up to 10 A and voltages up to 30 V, providing galvanic isolation and full configurability of RC control parameters. The version without soldered connectors allows easy adaptation to individual mounting needs in RC and automation projects.

Industrial module with 4 relays with a load of up to 10 A. It uses the Modbus RTU protocol and the RS485 or RS232 communication interface. DFRobot FIT0827

Module with 8 relays 12 V with a maximum switching current of 7 A. Numato Lab RL40004

Module with 4 SSR relays with a load of up to 3 A. The board communicates via the USB interface. Numato Lab SSR40001-AC

Relay module for the WeMos D1 Mini WiFi set