SKU: SBCD-0694
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Arduino 4 Relay Shield

₹2,979.00 (Inclusive of all taxes)
Out of Stock

The Arduino 4 Relay Shield expands your Arduino UNO’s capabilities by enabling control of up to four high-power electrical loads. It is ideal for automating tasks that exceed standard I/O current and voltage limits.

Features

  • Controls up to four independent high-power loads.
  • Features dual pole changeover contacts (NO/NC) per relay.
  • Supports load voltages up to 48V DC and switching capacity of 60W.
  • Designed for seamless integration with Arduino UNO boards.
  • Equipped with robust screw terminals for secure connections.

Out of stock

Description

The Arduino 4 Relay Shield is an essential expansion board engineered to empower Arduino users to manage high-power loads safely and effectively. It provides four individual relays, allowing direct control over devices with current and voltage requirements that surpass the capabilities of the Arduino’s digital I/O pins. This makes it a critical component for applications spanning home automation, industrial process control, and advanced robotics, where robust power switching is paramount.

Each relay on the shield features dual pole changeover contacts, offering both Normally Open (NO) and Normally Closed (NC) configurations for versatile control scenarios. The integration is straightforward, plugging directly into an Arduino UNO board. Its compact design and secure screw terminals ensure reliable operation and ease of wiring in diverse projects, making it a valuable asset for both hobbyists and professional engineers looking to extend their Arduino projects into the realm of high-power load management.

Key Features

  • Four independent relay outputs for comprehensive load control.
  • Dual pole changeover (NO/NC) contacts on each relay for flexible switching.
  • Robust screw terminals ensure secure and reliable wiring connections.
  • Direct stacking compatibility with Arduino UNO and similar form factor boards.
  • Designed for controlling a wide range of high-power devices and systems.
  • Compact form factor for easy integration into existing enclosures and designs.

Applications

  • Home automation systems (lighting, appliance control).
  • Industrial process control and machinery automation.
  • Robotics projects requiring motor or actuator control.
  • Automated irrigation and environmental control systems.
  • HVAC system control and energy management.
  • Remote power switching for embedded systems.

Technical Specifications

Operating Voltage5V DC (from Arduino)
Relay Pins (Arduino)Pin 4 (Relay 1), Pin 7 (Relay 2), Pin 8 (Relay 3), Pin 12 (Relay 4)
Maximum Load Voltage48V DC
Maximum Switching Capacity60W
Single Pole Contact Rating30V DC, 2A maximum
Coil Current Consumption~35 mA per relay (140 mA total when all active)

Frequently Asked Questions

What Arduino boards are compatible with the 4 Relay Shield?

The Arduino 4 Relay Shield is designed for direct compatibility with the Arduino UNO. Its pinout and form factor are optimized for seamless stacking, ensuring proper electrical and mechanical connection for immediate use in various control applications.

What is the maximum voltage and current capacity per relay?

Each relay on the shield can handle a maximum load voltage of 48V DC and supports a switching capacity of up to 60W. Individually, the single pole changeover contacts are rated for 30V DC at a maximum of 2A, providing robust control for moderate power loads.

How much current does the shield consume?

When all four relays are activated, the shield consumes approximately 140 mA of current in total. Each individual relay coil draws around 35 mA. This current is supplied directly from the attached Arduino board, ensuring efficient power management.

What are the designated control pins for each relay?

The Arduino 4 Relay Shield utilizes specific digital pins on the connected Arduino board for control. Relay 1 is controlled via Pin 4, Relay 2 via Pin 7, Relay 3 via Pin 8, and Relay 4 via Pin 12. These pins are fixed for easy software integration.

Package Includes

  • 1 x Arduino 4 Relay Shield

Additional Information

Weight 0.07 kg
Dimensions 7 × 9 × 3 cm