4 Channel Relay Controller Board - module with 4 relays

ModRL01 module with 10A/250VAC (10A/24VDC) relay, supply of 5 V load relay coil, additional control circuit, protected overvoltage control

Crowtail – Dry-Reed Relay 2.0 is a compact reed relay with hermetically sealed contacts, providing fast and reliable switching. Used in automation systems, microelectronics, and detection systems requiring precision and durability.

Module with SSR M281 relay with a load of up to 1 A. The board is equipped with a Grove connector and is controlled by a digital input. Seeed Studio 101020603

Module with 2 5 V relays with a maximum switching current of 2 A. It communicates via the USB interface and does not require an additional power supply. Numato Lab USBPOWRL001

A compact relay module with an Omron G5LE-14-DC5 relay, capable of controlling loads up to 10 A with a 5 V coil voltage. Thanks to a BSS138K MOSFET transistor, it can be activated by a 2.5 V to 20 V logic signal, facilitating interoperability with microcontrollers. The module is equipped with 5 mm screw terminals, a 3-pin JST SH connector, and LEDs to indicate operation. Pololu 5662

Module with 5 A 250 VAC relay. DFRobot DFR0017

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

A compact Omron G5LE-14-DC12 relay module that allows you to control loads up to 10 A with a coil voltage of 12 V. Thanks to the BSS138K MOSFET transistor, it can be activated by a 2.5 V to 20 V logic signal, facilitating interoperability with microcontrollers. The module is equipped with 5 mm screw terminals, a 3-pin JST SH connector, and LEDs to indicate operation. Pololu 5663

Module with 16 24 V relays with a load of up to 7 A. The board communicates via the Ethernet interface. Numato Lab 16ETHRL001-24

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 eight 240V/2A relays controlled by 5V with a fuse triggered by a high state. modSSR-8CH-H

Module with SSR relay with a load of up to 3 A. It communicates via the USB interface and does not require additional power supply. Numato Lab SSRP20001-AC

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

Crowtail – Dual Coil Latching Relay Module 2.0 is an energy-efficient dual-channel latching relay that retains its state after power loss. Intended for use in automation systems, remote control, and battery-powered projects.

Module with 4 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 SSRC40001-AC

Module with eight 240V/2A relays controlled by 5V with a fuse triggered by a low state. modSSR-8CH-L