BEVRLINK 4 Channel Relay and 4 manual test buttons 12VOverview The BEVRLink relay module is a user friendly solution suitable for users of all levels of experience. With clear documentation and easy setup, this module is perfect for beginners. It features 4 relay channels and 4 voltage free input channels, each equipped with a button for convenient testing. The inputs can be connected without external power, and the module can send interrupts to a manager (e. g., Raspberry Pi) on input change. The

Overview

The BEVRLink relay module is a user-friendly solution suitable for users of all levels of experience. With clear documentation and easy setup, this module is perfect for beginners. It features 4 relay channels and 4 voltage-free input channels, each equipped with a button for convenient testing. The inputs can be connected without external power, and the module can send interrupts to a manager (e.g., Raspberry Pi) on input change. The onboard LEDs indicate relay status for easy monitoring. The BEVRLink relay module offers a standard rail mount bottom case, selectable I2C address, and an optional I2C 4.7K pull-up, making it simple to set up and use. Whether you're a beginner or an experienced user, the BEVRLink relay module is an ideal choice for controlling relays and inputs in your system.

Just connect the button to the input and ground, no extra power is required. Or connect the transistor outputs from sensors and digital switches. A 5V 5mA is flowing out the input connector to sense if there is a short to ground or not, this is called wetting current in the industry.

A button on each input allows for quick and easy test or usage of the inputs in your system.

The 4-Channel Relay Board is a versatile and compact solution for controlling high-power devices from a low-power microcontroller or switch. With 4 high-quality relays, this board can switch up to 5A 250V AC or 5A 30V DC loads, making it suitable for a wide range of applications. The board is powered by a 12V/2A DC Jack power input and features a 12V output connector for powering additional boards or loads.

Relay Features

• 4 high-quality relays with SPDT-NO, NC contact form
• Voltage-free inputs that can be triggered by NPN transistors, switches, or relays without external power
• 12V/2A DC Jack power input (5.5x2.1mm) and a 12V output connector for powering additional boards or loads
• Onboard LEDs to indicate relay and power status
• Manager and expansion connector providing 5V/3.3A power and compatibility with Raspberry Pi and additional modules
• Spring clamp terminal block connectors for easy input and output connections
• Selectable I2C addresses (0x38-0x3F) and optional 4.7K pull-up
• Dimensions: 118.87 mm x 72 mm with M3 mounting hole size

Relay Features

• Each relay uses only 15mA when active and is supplied directly from the power input
• High-quality relays for reliable performance
• Suitable for switching loads up to 5A 250V AC or 5A 30V DC

Input features

• 4 voltage-free inputs for triggering the relays
  
• Buttons on each input for quick and easy testing
• Ability to send interrupts to a manager (e.g., Raspberry Pi) on input change

Specifications

• Power supply voltage: 12V/2A
• Relay channels: 4
• Voltage-free input channels: 4
• Input wetting current: 5mA (5V)
• Connector: Spring clamp terminal block
• Dimension: 118.87 mm x 72 mm
• Mounting hole size: M3
• I2C Address: 0x38-0x3F (user selectable)
• I2C 4.7K optional pull-up
• 3.3A available for manager (Raspberry Pi) + additional modules

Compatible Accessories

BEVRLink Din Rail clip
(compatible with the case but not directly the board)

BEVRLink 4 Channel Relay Case

BEVRLink Power Supply 12V 2A

Examples and Guides

How To Expand With More Relay Boards & How To Address

How to wire directly between the relay and single board computer/microcontroller

Inputs and outputs

I2C address selector

Examples of how to get started

• Raspberry PI manager Python
• Raspberry PICO manager Python
• Raspberry PICO manager ESPHOME
• ESP32 manager Arduino
• ESP32 manager ESPHOME
• ROCK Pi manager Python

Dimensions

Download 3D Model here

Example of applications

• Home Automation: The 4 Channel Relay Board can be used to control lights, fans, or other appliances in a smart home setup.

• Industrial Control: The board's high-power relays can be used to control machinery or process equipment in an industrial setting.

• Robotics: The board can be used to control motors, actuators, or other devices in a robotics system.

• Lighting Control: The board can be used to switch on/off lights or dim them in stages, making it ideal for lighting control in buildings, hotels, and theaters.

• Agriculture: The board can be used to control irrigation systems, pumps, or other equipment in agriculture applications.

• HVAC: The board can be used to control heating, ventilation, and air conditioning systems in commercial or residential buildings.

• Security Systems: The board can be used to control alarms, cameras, or other security devices in a surveillance system.

• Laboratory Equipment: The board can be used to control power to various experiments or laboratory equipment.

• Amusement Rides: The board can be used to control motors, actuators, or other devices in amusement park rides.

• Medical Equipment: The board can be used to control various devices in medical equipment, such as dialysis machines or patient monitors.