Opto Isolated Relay Module 1 Channel 5V 30A
Opto-isolated relay module for safe MCU control
৳350.00৳340.00
Description of Opto Isolated Relay Module 1 Channel 5V 30A
1 Channel 5V 30A Opto Isolated Relay Module
This is an easy-to-use 1-channel relay board that operates on 5V. It allows direct control of a 240V power appliance using microcontrollers or low-voltage circuits. It is ideal for switching high-power 240V appliances such as lights, fans, and motors at lower voltages. The board features a high-quality relay capable of handling up to 30A at 240V AC or 15A at 24V DC.
The module provides all three relay connections - Common (COM), Normally Open (NO), and Normally Closed (NC) - via a 3-pin screw terminal, making it easy to connect and disconnect loads. It also features power and relay status LEDs for quick debugging. The power input and relay control signals are accessible via header pins, enabling seamless interfacing with development boards using female-to-female jumper wires.
Features
Supports switching of 240VAC/30A circuits safely
Optocoupler isolation ensures stable and reliable operation
Jumper-selectable high-level or low-level trigger input
Power indicator (Green LED) and relay status indicator (Red LED)
Fault-tolerant design: The relay does not switch due to control line faults or noise interference
Technical Specifications
Feature | Specification |
|---|---|
Operating Voltage | 5V DC |
Static Current | 5mA |
Working Current | 190mA |
Trigger Current | 2-4mA |
Relay Maximum Load | AC 250V/30A, DC 30V/30A |
Trigger Mode | High-level or low-level (jumper selectable) |
Optocoupler Isolation | Yes |
Power Indicator LED | Green |
Relay Status LED | Red |
Interface Pins | DC+, DC-, IN, JD+, JD-, COM, NO, NC |
Module Dimensions | 50mm × 33mm × 24mm |
Module Interface Specifications
Module Interface | Description |
|---|---|
DC+ | DC power supply positive pole |
DC- | DC power supply negative pole |
IN | Signal trigger pin |
JD+ | Relay control voltage positive |
JD- | Relay control voltage negative |
NC (Normally Closed Pin) | Connected to COM when the relay is inactive |
COM (Common Pin) | Common connection |
NO (Normally Open Pin) | Connected to COM when the relay is active |
Jumper & L Pin Connection | IN pin acts as a low-level trigger |
Jumper & H Pin Connection | IN pin acts as a high-level trigger |
Applications:
Industrial automation
Home and commercial appliance control
Motor and pump switching
Power management systems
IoT and smart home projects
Packaging Details
1 x 1 Channel 5V 30A Opto Isolated Relay Module
