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.

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.