4 Channel USB Solid State Relay Module - module with 4 SSR AC relays and USB communication

The module contains four 5V relays with a maximum current of 10A (250 VAC) and opto-isolated inputs, and with jumpers it is possible to select switching with high or low status. The module is equipped with screw connectors. modRL04_ISO

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

4-channel switch module with a maximum voltage of 16 V and a current of 2 A based on a MOSFET transistor. It is controlled by digital inputs. It is equipped with a screw connection and status LEDs. Adafruit 5757

Module with a 12 V relay and a timer. It enables the implementation of delayed switching on or off of the circuit with the possibility of time adjustment

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

Module with one 240V/2A relay controlled by 5V with a fuse triggered by a high state. modSSR-1CH-H

Crowtail-TPL5111 Reset Enable Timer is a module for energy-efficient power control of devices in battery-powered projects. It offers six programmable time intervals and an automatic reset mode, supporting the design of low-power circuits.

Module with 8 relays SSR G3MC202P with a load up to 2 A. The board is equipped with a Grove connector and communicates via I2C. Seeed Studio 103020136

Module with 32 relays and 8 analog inputs. Communicates via the WiFi wireless interface. Numato Lab WFRL320001

Industrial module based on the ESP32-S3 microcontroller, which supports WiFi, Bluetooth and RS485 interface. Equipped with 6 high-power relays (up to 10A at 250VAC/30VDC), it allows for safe control of various devices and integration with industrial sensors via the Modbus protocol. The module supports popular programming environments such as Arduino and MicroPython, making it ideal for AIoT and remote monitoring applications. Waveshare ESP32-S3-Relay-6CH

Iduino relay module with 2 channels and optoisolation, enabling control of loads up to 10 A at 250 V AC or 110 V DC. Powered by 5 V, it is ideally compatible with microcontrollers and development kits, providing safe and convenient circuit switching.

A versatile module that allows you to control higher voltage devices such as 12V LED strips while simultaneously powering a microcontroller from 3.3V. The module integrates an LMR14203 converter and an N-channel MOSFET (PSMN7R0-100BS), allowing you to power the board at up to 12V and drive loads up to 10A, with additional protection features and LED indicators, making it ideal for projects requiring efficient power control. SparkFun COM-23979

4-channel module with relays, designed to work with the Raspberry Pi. It can switch 120VAC/2A or 24VDC/2A signals. SB Components 14071

Industrial module with Ethernet interface that allows control of 8 relays via RJ45 port and has 8 built-in digital inputs. It uses Modbus TCP protocol, PoE (Power over Ethernet) power supply and is equipped with a rail-mounted housing. Waveshare Modbus POE ETH Relay (B)

Module with a 12 V relay and a timer. It allows you to turn the device on and off cyclically at a specified time using potentiometers. It can also operate in single trigger mode, which allows the device to be turned on after a signal has been applied for a specified period of time. The operating time can be adjusted from 1 s to 100 s or from 1 s to 15 min

8-channel module with relays designed for minicomputers Raspberry Pi. It allows you to control devices powered by high voltage. Waveshare RPi Relay Board (B)