4-Channel Relay Module

The 4-Channel Relay Module allows for controlling up to four high-voltage devices with low-voltage signals. This module is ideal for various applications such as home automation, industrial automation, and robotic control, providing the ability to switch on or off multiple devices independently.

Key Features:

• 4 independent relays
• Compatible with microcontrollers (Arduino, Raspberry Pi, etc.)
• Supports both normally open (NO) and normally closed (NC) contacts
• LED indicators for each relay channel
• Opto-isolated inputs for protection
• Can switch both AC and DC loads

Technical Specifications:

• Relay Type: Electromechanical
• Operating Voltage: 5V DC or 12V DC (depending on the model)
• Trigger Voltage: 5V DC (high or low-level trigger)
• Current Consumption: 20 mA per relay (at 5V)
• Relay Contact Rating: 250V AC / 10A or 30V DC / 10A per relay
• Channel Indicators: LED for each relay
• Dimensions: Typically around 75mm x 55mm x 20mm
• Operating Temperature Range: -40°C to +85°C

Applications:

• Home automation systems
• Industrial control systems
• Robotics
• HVAC systems
• Security systems
• Remote control of devices

Usage:

1. Power Connection: Connect the VCC and GND pins to a suitable power source (5V or 12V DC).
2. Control Signal: Connect the input pins to the digital output pins of a microcontroller to control the relays.
3. Load Connection: Connect the devices to be controlled to the relay output terminals (NO or NC as required).
4. Programming: Write software to send signals to the input pins to switch the relays on and off as needed.

Caution:

• Ensure the total current through the module does not exceed its maximum rating.
• Be cautious when working with high voltages to avoid electric shock.
• Provide proper insulation and safety measures when dealing with AC loads.
• Follow the manufacturer’s guidelines for installation and operation.