This is the 12V variant of the 4 Road/Channel Relay Module 12V (with light coupling) in Relay Modules. Available at ₹158.12 (₹134.00 + GST) with free shipping across India.
Description:
This 4-Channel Relay Module (with optical coupling) operates at 12V and adheres to safety standards, featuring an isolation groove between the control area and the load area for enhanced protection. The optical coupling ensures reliable and stable triggering of the relays.
The module boasts a double FR-4 circuit board design and high-quality SMT processing. It includes indicators for power and relay operation, while the relay terminals (C, NC, NO) are easily accessible via screw terminals, simplifying the wiring process.
The inputs of the 4-Channel 12V Relay Module are isolated to safeguard sensitive control circuitry. It is compatible with a wide range of microcontrollers, including Arduino, AVR, PIC, and ARM.
Using high-voltage relays minimizes the risk of overheating, as electromechanical relays regulate current consumption based on their voltage rating.
Module Interface:
- VCC: Connect power supply (positive according to relay voltage)
- GND: Connect power negative
- IN1: Relay module (effective) high-level trigger signal trigger end
- IN2: Relay module (effective) high-level trigger signal trigger end
- IN3: Relay module (effective) high-level trigger signal trigger end
- IN4: Relay module (effective) high-level trigger signal trigger end
Meaning of High Level and Low Level:
- High-level trigger: Refers to using the anode voltage at the VCC connection way of a trigger and triggers the end when the trigger side has the positive voltage or to trigger voltage when the relay is off.
- Low-level trigger: Refers to using the negative voltage at the GND connection way of a trigger and triggers the end when the trigger side has 0 V low voltage or voltage to can trigger, the relay is off.
Features:
- Equipped with high-current relay 10A@250VAC / 10A@30VDC
- Can control both AC and DC appliances such as solenoids, motors, lights, fans, etc.
- High-quality screw terminals (Terminal Block) provided (C, NC, NO) for quick and easy connection
- Freewheeling diode to protect your microcontroller
- Input Signal Pin connected to Burg stick for easy accessibility
- LED Status indicators to indicate the relay ON/OFF status
- Mounting holes provided
- Signal input with a high-level signal, the common and often start conduction
- The relay can directly control all kinds of equipment and load
- One often opened a normally closed contact
- Blue KF301 terminal line more convenient
Specifications:
| Trigger Current (mA) | 20 |
|---|---|
| Switching Voltage (VAC) | 250@10A |
| Switching Voltage (VDC) | 30@10A |
| Mounting hole dimensions | Diameter=3mm, X-axis pitch=68mm Y-axis pitch=48mm |
| Length (mm): | 72 |
| Width (mm): | 55.5 |
| Height (mm): | 20 |
Package includes:
1 x 4 Road/Channel Relay Module (with light coupling) 12V
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Read More →Technical Specifications
| Operating Voltage | 12V |
|---|---|
| SKU | AI0323 |
| Weight | 0.05 kg |
| Availability | In Stock |
Applications & Use Cases
The 4 Road/Channel Relay Module 12V (with light coupling) is a versatile relay modules used across a wide range of applications including home automation, industrial control, IoT projects, Arduino/Raspberry Pi interfacing, and motor control.
Common use cases:
- Switching high-voltage AC appliances with a microcontroller
- Building a smart home relay board
- Automating irrigation pumps in agriculture
This product is ideal for electronics engineers, IoT developers, and automation hobbyists.
Technical Tip: Use optocoupler-isolated relay modules to protect your microcontroller. Match relay coil voltage to your MCU logic level (3.3V or 5V).
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
Dhruv Dave (verified owner) –
Great quality 4 Road/Channel Relay Module 12V. All channels working. Optocoupler isolation is a nice feature.
Vidya Mukherjee –
Good 4 Road/Channel Relay Module 12V. Works well. LED indicators are helpful for debugging.
Zubin Luthra (verified owner) –
Nice 4 Road/Channel Relay Module 12V. Relay clicks are clear. Terminal connections are solid.
Advik Nair –
Great 4 Road/Channel Relay Module 12V. Easy to integrate with NodeMCU for WiFi-based control.
Dhruv Jain (verified owner) –
Good quality 4 Road/Channel Relay Module 12V. Using it for my college project. Performs as expected.
Shivam Saxena (verified owner) –
Love this 4 Road/Channel Relay Module 12V. Click sound is satisfying and switching is instantaneous.
Vivek Menon –
Love this 4 Road/Channel Relay Module 12V. Click sound is satisfying and switching is instantaneous.
Sameer Dubey (verified owner) –
This 4 Road/Channel Relay Module 12V is robust and well built. PCB quality is excellent.
Lalit Rajan (verified owner) –
Superb 4 Road/Channel Relay Module 12V! Using it to control my garden irrigation system. Very dependable.
Jai Goyal –
Perfect 4 Road/Channel Relay Module 12V for my IoT project. Controlling appliances remotely works flawlessly.
Sandhya Khanna (verified owner) –
This 4 Road/Channel Relay Module 12V works perfectly with my Arduino. Easy to wire and control.
Anjali Rawat (verified owner) –
Perfect 4 Road/Channel Relay Module 12V for my IoT project. Controlling appliances remotely works flawlessly.
Deepak Arora (verified owner) –
This 4 Road/Channel Relay Module 12V is robust and well built. PCB quality is excellent.
Sudhir Kalambe (verified owner) –
Rohan Mittal –
Love this 4 Road/Channel Relay Module 12V. Click sound is satisfying and switching is instantaneous.
Tanya Luthra –
Nice 4 Road/Channel Relay Module 12V. Relay clicks are clear. Terminal connections are solid.
Sonali Banerjee (verified owner) –
This 4 Road/Channel Relay Module 12V is robust and well built. PCB quality is excellent.
Kunal Bhat (verified owner) –
Great quality 4 Road/Channel Relay Module 12V. All channels working. Optocoupler isolation is a nice feature.
Sameer Saxena –
Good quality 4 Road/Channel Relay Module 12V. Using it for my college project. Performs as expected.
Jatin Pandey (verified owner) –
Good quality 4 Road/Channel Relay Module 12V. Using it for my college project. Performs as expected.
Vinay Sharma (verified owner) –
Decent 4 Road/Channel Relay Module 12V. Trigger voltage is compatible with both 3.3V and 5V logic.
Ishaan Tiwari (verified owner) –
Perfect 4 Road/Channel Relay Module 12V for my IoT project. Controlling appliances remotely works flawlessly.
Sameer Negi –
Good quality 4 Road/Channel Relay Module 12V. Using it for my college project. Performs as expected.