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Detailed Description:

Take command of multiple high-power electrical devices with the robust and versatile 12V 16-Channel Relay Module – High-Power 16CH Control Board. This essential module is designed to provide isolated switching capabilities for up to sixteen independent circuits, making it ideal for complex automation projects, industrial control systems, smart home installations, and robotics. Its 12V coil voltage ensures broad compatibility with common power supplies and industrial standards.

Each of the 16 onboard relays is typically rated to handle significant loads, commonly up to 10A at 250V AC or 10A at 30V DC, allowing you to control a wide range of appliances, lights, motors, pumps, and other high-current devices safely and reliably. A critical feature of these high-quality relay modules is the optocoupler (light coupling) protection for each channel. This provides crucial electrical isolation between your sensitive low-voltage control circuitry (like a microcontroller) and the high-voltage/high-current loads, preventing damage due to electrical noise, voltage spikes, or current surges.

The module features a straightforward digital interface, with individual input pins for each relay. These input pins are generally TTL compatible and often support active-low triggering, meaning the relay activates when the input pin is driven LOW. This makes seamless integration with microcontrollers such as Arduino, Raspberry Pi, ESP32, PIC, and other PLCs incredibly easy. Each relay often includes a dedicated LED indicator, providing visual confirmation of its ON/OFF status for simplified debugging. With independent Normally Open (NO), Normally Closed (NC), and Common (COM) terminals for each channel, the 12V 16-Channel Relay Module offers maximum flexibility for configuring your circuits. This high-power control board is a fundamental building block for expanding the control capabilities of your embedded systems in Pune, Maharashtra, India, and across various industrial and hobbyist applications.

The 12V 16-Channel Relay Module is a robust control board for switching AC (up to 250V) or DC (up to 30V) loads through microcontrollers, PLCs, or industrial control systems. It features 16 SPDT relays, each capable of switching 10A loads, and is optically isolated to prevent backflow voltage damage.

This module is suitable for controlling appliances, lighting, motors, valves, and more in applications requiring multiple relay switching channels. Compatible with Arduino, ESP8266, STM32, Raspberry Pi, and industrial PLCs, it ensures stable performance, strong build quality, and easy wiring through screw terminals.

Key Features:

• 16 independent relay channels (SPDT – Single Pole Double Throw)

• 12V trigger voltage

• Opto-isolated inputs for enhanced safety

• Each relay rated for 250VAC / 10A or 30VDC / 10A

• Compatible with microcontrollers and PLCs

• Low-level trigger interface

• LED indicators for each relay status

• Durable PCB with mounting holes

• Screw terminals for easy load connection

• Long relay life: >100,000 operations

Technical Specifications:

How to Use:

1. Power the board with 12V DC (JD-VCC).

2. Connect GND and VCC to your logic-level controller.

3. Use IN1 to IN16 to control each relay via GPIO pins.

4. Remove JD-VCC jumper and use optically isolated supply if required for added protection.

5. Wire AC/DC loads to the NO/NC/COM screw terminals.

Use external 12V power supply for stable relay operation, especially when activating multiple channels.

Applications:

• Smart home automation (appliances, lighting, sockets)

• Industrial process control systems

• PLC-based automation

• IoT-based multi-device control

• Agricultural irrigation systems

• Robotics & sensor-actuated switching

• Large relay banks for DC/AC load switching

Package Includes:

• 1 x 12V 16-Channel Relay Module