The 12V 2Ch Relay Module with Optocoupler is a dual-channel relay board with optocoupler isolation on each channel, operating on a 12V DC coil supply and switching up to 240VAC at 10A per channel — giving independent control of two separate loads from one compact board using two signal input pins. This 12v 2 channel relay module is the two-channel version of the optocoupler-isolated 12V relay, allowing a microcontroller to control two different loads such as a motor and a pump.
Two separate mains appliances, independently and simultaneously without needing two separate relay modules.The 2 channel relay module 12v’s optocoupler isolation on each channel provides the same galvanic separation as the single-channel variant — the signal circuit and load circuit share no electrical connection, protecting the microcontroller from voltage spikes on the 240VAC load side.
The relay module for microcontroller’s two independent signal inputs allow each channel to be triggered separately from different GPIO pins. This 2 channel relay 12v is perfect for students and learners. Available from StemVolt.
Related Product:
- Checkout 2 Channel 5V Relay Module with Optocoupler
- Read More: Best Electronic Modules for Arduino
Features:
- Two independent channels control two separate loads from one board
- Optocoupler isolation per channel protects MCU from 240VAC load faults
- Each channel switches 240VAC at 10A independently
- 12V coil suits automotive industrial and 12V adapter project builds
- Compact dual-channel board replaces two separate single-channel relay modules
Technical Specifications:
| Specification | Details |
|---|---|
| Operating Voltage | 12V DC |
| Channels | 2 |
| Load Voltage | Up to 240VAC |
| Maximum Load Current | 10A per Channel |
| Isolation | Optocoupler Isolated |
Applications:
- Dual-load switching — motor and pump independently controlled
- Controls two appliances via 12v 2 channel relay module
- Use project for 2 channel relay module dual isolated switching demo
- relay module for microcontroller dual-channel relay experiment
Package Includes:
-
1 x 12V 2Ch Relay Module with Optocoupler














Kanishk Bakliwal –
Bubble wrap packaging, quick response, and stable operation made it ideal for school competition projects.
Moksh Gangwal –
Great experience overall
Chirag Patodi –
This 2-channel relay module performed reliably and controlled multiple devices efficiently in my project.
Lakshya Ajmera –
Verified seller with genuine products
Daksh Chhabra –
Delivered in 4 days as promised