1 Channel 12V 30A Relay Module with Optocoupler and Guide Rail

This is the 12V variant of the 1 Channel 12V 30A Relay Module with Optocoupler and Guide Rail in Relay Modules. Available at ₹332.76 (₹282.00 + GST) with free shipping across India.

Looking for Channel Module 12v? 1 Channel 12V 30A Relay Module with Optocoupler and Guide Rail is available at Zbotic with fast shipping across India.

1 Channel 12V 30A Relay Module with Optocoupler and Guide Rail

This module is a 1-channel 12V 30A relay control board with optocoupler modules. It meets international safety standards and has isolation trenches between the control and load areas. It uses a genuine single relay.

The inputs of the 1-channel 12V 30A Relay Module are isolated to protect the control circuitry from damage.

The module has indicators for power supply and relay status. When the input signal is on, the relay connects the common terminal and the normally open terminal. The module can control appliances with both DC and AC signals, up to 220V AC.

The module is compatible with various microcontrollers, such as Arduino, AVR, PIC, ARM, etc.

The module has a guide rail on the backside, which allows it to be mounted on a suitable location.

Note: On the high level and low level-triggered mode, friends who do not understand, have a look

• High-level trigger refers to the signal voltage between input and trigger, can be understood as a signal input with VCC cathode short-circuit triggered away;
• Low-level trigger refers to the signal voltage between the input terminal and Earth OV trigger, can be understood as a signal input terminal and the GND negative electrode short circuit triggered is a way  1-channel relay module connection.

This module is a 1-channel 12V 30A relay control board with optocoupler modules. It meets international safety standards and has isolation trenches between the control and load areas. It uses a genuine single relay.

The inputs of the 1-channel 12V 30A relay module are isolated to protect the control circuitry from damage.

The module has indicators for power supply and relay status. When the input signal is on, the common terminal and the signal terminal are connected. The module can control appliances with both DC and AC signals, up to 220V AC load.

The module is compatible with various microcontrollers, such as Arduino, AVR, PIC, ARM and others.

The module has a guide rail on the backside, which allows it to be mounted to a suitable location.

Note: On the high level and low level-triggered mode, friends who do not understand, have a look

• High-level trigger refers to the signal voltage between input and trigger, can be understood as a signal input with VCC cathode short-circuit triggered away;
• Low-level trigger refers to the signal voltage between the input terminal and Earth OV trigger, can be understood as a signal input terminal and the GND negative electrode short circuit triggered is a way  1-channel relay module connection.

Features

1. High impedance controller pin
2. Pull-down circuit for the avoidance of malfunction
3. One normally closed contact and one normally open contact
4. Triode drive, increasing relay coil
5. Power supply indicator lamp
6. Control indicator lamp
7. With 4 fixed screw holes, hole diameter 3.1mm, convenient installation, and fixation

Specifications:

Package Includes

• 1 x 1 channel 12V 30A relay control board module (Guide rail)

1 Channel 12V 30A Relay Module with Optocoupler and Guide Overview

The 1 Channel 12V 30A Relay Module with Optocoupler and Guide Rail is a single-output control board designed to switch high-current loads up to 30A using a 12V DC coil. Featuring optocoupler isolation and a DIN guide rail mount, it safeguards your control circuitry while delivering reliable on/off control for both AC and DC devices.

Key Features of 1 Channel 12V 30A Relay Module with Optocoupler and Guide

• Genuine single relay rated 30A at 12V DC, capable of switching up to 220V AC loads
• Optocoupler isolation and isolation trenches separate control and load sections
• High-impedance controller pin with built-in pull-down circuit to prevent false triggering
• LED indicators for power supply and relay activation status
• DIN guide rail mount for quick installation in control panels
• Fast shipping from Zbotic with genuine product guarantee

Applications and Use Cases

• Automated control of water pumps and fans in agricultural or industrial setups
• On/off switching for lighting circuits in smart home installations
• Power management for DC motors and solenoids in robotics projects
• Heating element control in small-scale industrial ovens or soldering stations
• Integration into PLC panels for factory automation

How to Use 1 Channel 12V 30A Relay Module with Optocoupler and Guide

Mount the module onto a standard DIN guide rail, then wire 12V DC to VCC and GND. Connect your control signal to the IN pin, which will drive the optocoupler and activate the relay coil. Finally, wire your load through the COM and NO/NC terminals according to whether you require normally-off or normally-on operation.

Why Buy from Zbotic?

• Genuine Products: All items sourced from authorized distributors
• Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
• Free Shipping: Free delivery on qualifying orders
• COD Available: Cash on Delivery, UPI, cards, net banking
• Technical Support: Expert help for setup and troubleshooting
• Easy Returns: Hassle-free replacement for defective products

Frequently Asked Questions

What types of loads can this relay module switch?

You can switch DC loads up to 30A at 12V or AC loads up to 220V at 30A. Ensure your wiring meets the current rating to avoid overheating.

How do I wire the COM, NO, and NC terminals?

Connect the load’s power line to COM. Use NO for circuits that should be off when the relay is idle, and NC for those that should be on by default.

How is the module mounted on the guide rail?

Hook the top edge of the module onto the DIN rail, then press the bottom until the latch clicks. Ensure the module is seated firmly before wiring.

Related Articles:

ESP32 Power Profiling: Measure Sleep and Active Consumption

Understanding ESP32 power consumption profiling is one of the most critical skills for building battery-powered IoT devices. The...

Read More →

MQTT Broker Setup: Mosquitto on Raspberry Pi for IoT

Setting up an MQTT broker with Mosquitto on a Raspberry Pi for IoT is one of the most...

Read More →

Smart Warehouse IoT: Inventory and Climate Control

Table of Contents Smart Warehouse Overview Inventory Tracking with IoT Climate Control Systems Worker Safety Monitoring Automated Alerts...

Read More →