The 4 Channel 5V 10A Relay Module with Optocoupler is a four-channel relay board with optocoupler isolation on each channel, operating on 5V DC and switching up to 10A at 250VAC and 10A at 30VDC per channel independently — positioned between the 2-channel and 8-channel relay modules for projects that need more than two switched outputs but do not require a full eight-channel board. This 4 channel 5v relay module supports both high-level and low-level TTL trigger signals on each channel, making it the most flexible trigger configuration.
The relay module positioning reflects this module’s common use with ESP32 and NodeMCU automation — four channels cover the four most common home loads (lights, fan, pump, socket) in a single-room automation system, all controlled from one compact board with 5V supply and optocoupler isolation protecting each GPIO from load-side faults. The relay module with optocoupler’s 20mA trigger current per channel is within safe GPIO output limits for arduino without additional driver components.
The 5v relay module four independent load terminals allow complete wiring flexibility — each channel can switch a different voltage, load type, or appliance independently. This 4 channel relay module is ideal for robotics and electronica projects. Available from StemVolt, provide fast and reliable delivery in India.
Related Product:
- Checkout 5V 1CH Relay Module
Features:
- High and Low TTL trigger — most flexible trigger option in 5V relay family
- Optocoupler per channel isolates each GPIO from load-side faults
- 4 channels cover lights fan pump socket in one automation build
- 10A at 250VAC per channel for home and industrial AC loads
Technical Specifications:
Applications:
- ESP32 automation controlling lights fan pump and socket relay
- Project for 4 channel relay optocoupler multi-output switching
- NodeMCU IoT 4-load switch board for electronics
- 4 channel 5v relay module for multi-output relay circuit
Package Includes:
-
1 x 4 Channel 5V 10A Relay Module with optocoupler
Hardik Bakliwal –
This relay module worked perfectly with ESP32, providing reliable control for multiple devices.
Kshitiz Ajmera –
Shipment arrived safely
Rhythm Singhal –
Fully satisfied with the purchase
Mokshit Patodi –
Quick response from support team
Divyam Chhabra –
Multiple payment options available
Abhinav Gangwal –
Quality construction, safe delivery, and responsive support made it ideal for engineering automation projects.