1-Channel Timer Relay Module with Adjustable Timing Cycles (6–30V) for Projects

The 6–30V 1-Channel Power Relay Module with Adjustable Timing Cycle is a self-contained timer-controlled switching solution widely used in electronics education, automation prototyping, and control system demonstrations. Unlike programmable boards that require firmware development, this module offers direct hardware-based timing control through onboard buttons and a digital display.

It is designed to simplify time-based switching tasks such as delayed start, delayed stop, cyclic operation, and signal-controlled holding. The wide voltage input range and simple trigger interface allow it to integrate easily with microcontrollers, PLC outputs, sensors, and manual switches.

Q&A

Q: Is this a programmable board like Arduino?  

A: No. This is a hardware timer relay module that works without coding.

Technical Architecture

At its core, the module consists of a timing control circuit, a microcontroller-based timing logic unit, a seven-segment LED display, and a single electromechanical relay. An optocoupler is used on the trigger input side to electrically isolate the control signal from the relay output.

The relay contacts act as a passive switch, allowing the module to control external loads without sharing power between control and load circuits. Timing parameters are stored in non-volatile memory, ensuring settings are retained even after power loss.

Problem–Solution

Problem: Microcontroller GPIO pins cannot directly switch high-voltage loads.  

Solution: This relay module provides electrical isolation and safe switching.

Why Choose This Model?

This model is chosen frequently because it combines wide voltage support, flexible timing modes, and standalone operation. Users do not need programming knowledge or external displays to configure delays.

Key advantages 

• Wide 6–30V operating range  

• Adjustable timing from milliseconds to hours  

• Clear LED display for configuration feedback  

• Emergency STOP function for safety  

Comparison 

Compared to simple relay modules, this timer relay provides built-in timing logic. Compared to PLC timers, it is compact and cost-effective. Compared to microcontroller-based solutions, it eliminates firmware complexity.

 

Pin & Interface Overview

The module provides:

• Power input terminals (6–30V DC)

• Micro USB power input (5V)

• Trigger input terminal (high-level trigger)

• Relay output terminals (COM, NO, NC depending on model)

The trigger input accepts a high-level signal to start or control timing sequences.

Power System Explanation

The module can be powered in two ways:

1. DC input terminals (6–30V)

2. Micro USB 5V input

Only one power source should be used at a time. Internally regulated power ensures stable operation of the timing logic and display.

Mini Q&A

Q: Can I power it from 12V?  

A: Yes, 12V DC is within the supported range.

Common Issues & Troubleshooting

• Relay not switching: Check trigger voltage level and wiring polarity  

• Display turns off: Sleep mode may be active; press any button  

• Incorrect timing: Verify decimal point position for seconds/minutes  

Who Should Buy This?

• Students learning automation and control logic  

• Robotics hobbyists needing delay functions  

• Engineering labs demonstrating relay logic  

• System integrators testing time-based switching  

 Practical Applications

• Home automation delay switches  

• Pump and motor start/stop delay  

• Lighting control timers  

• Alarm and security sequencing  

• Robotics actuator timing  

Expansion & Ecosystem Compatibility

This module works well alongside Arduino, ESP32, STM32, PLC controllers, sensors, and power modules. It can be used as a standalone timer or triggered by external logic signals.

 Institutional & Bulk Suitability

For educational institutions, this module is suitable for:

• Relay logic labs  

• Industrial electronics demonstrations  

• Automation practical sessions  

Its durability and parameter memory make it reusable across multiple batches of students.

KEY FEATURES (8–12 Points)

• Wide 6–30V DC operating voltage for flexible power options  

• Adjustable timing range from 0.1 seconds to 999 minutes  

• Built-in digital LED display for direct configuration  

• Optocoupler isolation for improved electrical safety  

• Multiple timing modes including delay and cycle control  

• Emergency STOP button for immediate relay shutdown  

• Non-volatile memory retains settings after power loss  

• Single-channel relay suitable for automation projects  

• Supports high-level trigger signals from controllers  

TECHNICAL SPECIFICATIONS

Operating Voltage: 6–30V DC  

USB Power Input: 5V (Micro USB)  

Number of Channels: 1  

Timing Range: 0.1 seconds to 999 minutes  

Trigger Type: High-level trigger  

Isolation: Optocoupler  

Display Type: Seven-segment LED  

 APPLICATIONS (10–15 Use Cases)

Home automation delay control  

Robotics actuator timing  

Pump and motor delay circuits  

Lighting automation systems  

PLC logic testing  

Alarm system sequencing  

Educational electronics labs  

Industrial control demos  

DIY automation projects  

Appliance control prototypes  

 PACKAGE INCLUDES

1 × 6–30V 1-Channel Power Relay Module with Adjustable Timing Cycle

TRADE & COMPLIANCE

HSN Code: 85364100  

RoHS Compliance: Yes