1. Product Overview
The Hilitand DC 5V-36V Trigger Cycle Delay Timer Switch 15A Relay Module is a versatile electronic component designed for controlling various DC loads with precise timing. It features a digital LED display for easy parameter setting and monitoring. This module is suitable for applications requiring timed switching, such as controlling DC motors, lights, LED strips, micro-pumps, and solenoid valves.
Key features include:
- High Performance: Offers a longer service life compared to traditional electromagnetic relay modules, utilizing a high-performance control chip for stability and low power consumption.
- Wide Application: Equipped with dual-MOS in parallel active output, providing lower internal resistance, higher current capacity, and strong power. It supports up to 15A continuous current (400W) at room temperature, with enhanced heat dissipation allowing up to 30A.
- Silent Operation: Operates without noise or sparks during switching, and generates no electromagnetic interference.
- Unlimited Switching: Designed for fast turn-on and off circuits with an unlimited number of switching times.
- Broad Voltage Input: Accepts a wide voltage input range from 5V to 36V, making it compatible with various DC systems.

This image displays the main components of the module, including the LED display, control buttons, and terminal blocks for connections.
2. Specifications
| Feature | Value |
|---|---|
| Voltage | DC 5V~36V |
| Trigger Source | High voltage level trigger (3.0V~24V) |
| Output Capacity (Continuous) | 15A (400W) at room temperature |
| Output Capacity (Enhanced Heat Dissipation) | Up to 30A |
| Quiescent Current | 20mA |
| Operating Current | 50mA |
| Working Temperature | -40~85°C |
| Clocking (Time Delay) Range | 0.1 seconds to 999 minutes |
| Size | 60 x 34 x 12mm / 2.36 x 1.33 x 0.47 inches |

This image provides a visual representation of the module's physical dimensions, indicating its compact size.
3. Setup and Wiring
Proper wiring is essential for the safe and correct operation of the timer switch module. Refer to the diagram below for connection details.

This diagram illustrates the input power, trigger input, and output load connections, along with the control buttons and LED display.
3.1. Connection Terminals
- Input Power (DC 5V-36V): Connect your DC power supply to the terminals labeled IN+ and IN-. Ensure correct polarity.
- Trigger Input (DC 3-24V): The trigger signal is applied to the SIGN terminal. The module supports high voltage level triggering (3.0V~24V). The ground for the trigger source and system ground are typically not common to improve anti-jamming capability, but can be connected on common ground if necessary.
- Output Load (DC 5V-36V): Connect your DC load to the terminals labeled OUT+ and OUT-. The output voltage will be equal to the input voltage.
Important Notes:
- The module provides an active output, meaning the output voltage matches the input voltage.
- The 'DC+' (input positive) and 'Load+' (output positive) terminals are internally shorted (connected). However, 'DC-' (input negative) and 'Load-' (output negative) must not be shorted. Shorting these would bypass the module's control, causing the load to be continuously powered.
4. Operating Instructions
The module features an LED display and four buttons: STOP, SET, UP, and DOWN. These buttons are used to configure the operating modes and time parameters.
4.1. Button Functions
- SET: Enters/exits parameter setting mode, selects parameters.
- UP (+): Increases the selected parameter value.
- DOWN (-): Decreases the selected parameter value.
- STOP: Controls the relay's on/off state or stops the timer.
4.2. Operating Modes (P1-P4)
The module supports several operating modes, typically labeled P1 through P4, which define the timing behavior:
- P1: Delay Off - After receiving a trigger signal, the relay turns on for a set duration and then turns off.
- P2: Delay On-Off - After receiving a trigger signal, the relay turns off for a set duration, then turns on for another set duration, and then turns off.
- P3: Cycle On-Off - After receiving a trigger signal, the relay cycles between on and off states for specified durations, repeating a set number of times or indefinitely.
- P4: Signal Holding Relay On Function - The relay remains on as long as the trigger signal is present. Once the signal is removed, the relay turns off after a set delay.
Specific programming steps for each mode are typically detailed in the product's full documentation. Generally, you would press SET to enter mode selection, use UP/DOWN to choose a mode (P1-P4), then press SET again to configure time parameters (e.g., ON time, OFF time, cycle count) using UP/DOWN. Press SET one last time to save and exit.
4.3. Time Unit Setting
The time delay range is 0.1 seconds to 999 minutes. The display typically indicates the time unit:
- A decimal point in the last digit (e.g., 12.3) indicates 0.1-99.9 seconds.
- No decimal point (e.g., 123) indicates 1-999 seconds.
- A decimal point in the first digit (e.g., .123) indicates 1-999 minutes.
To change the time unit, usually, you would long-press the SET button to enter the unit selection mode, then use UP/DOWN to cycle through the options, and press SET to confirm.
Video: DC 5V-36V Trigger Cycle Delay Timer Switch Overview
This video provides a visual overview of the Hilitand DC 5V-36V Trigger Cycle Delay Timer Switch, demonstrating its physical appearance and basic handling.
5. Maintenance
To ensure the longevity and reliable operation of your Hilitand Timer Switch Module, follow these maintenance guidelines:
- Keep Dry: Protect the module from moisture and humidity. Water can cause short circuits and damage electronic components.
- Cleanliness: Keep the module free from dust and debris. Use a soft, dry brush or compressed air for cleaning. Avoid using liquid cleaners.
- Temperature: Operate the module within its specified working temperature range (-40~85°C). Extreme temperatures can affect performance and lifespan.
- Secure Connections: Periodically check all wiring connections to ensure they are secure and free from corrosion. Loose connections can lead to intermittent operation or damage.
- Heat Dissipation: If operating at higher currents (approaching 30A), ensure adequate heat dissipation. This may involve providing airflow or attaching a heatsink if not already integrated.
6. Troubleshooting
If you encounter issues with your Hilitand Timer Switch Module, refer to the following troubleshooting steps:
- Module Not Powering On:
- Check the input voltage: Ensure it is within the DC 5V-36V range.
- Verify power connections: Confirm that the IN+ and IN- terminals are correctly wired to the power supply with proper polarity.
- Inspect for damage: Look for any visible damage to the module or wiring.
- Load Not Switching / Always On:
- Review wiring: Ensure that 'DC-' and 'Load-' are not shorted together. These must be separate for the module to control the load.
- Check load connections: Verify the load is correctly connected to OUT+ and OUT-.
- Test the load independently: Confirm the load itself is functional when directly powered.
- Check trigger signal: Ensure the trigger signal (SIGN terminal) is within the 3.0V-24V range and is being applied correctly according to the selected operating mode.
- Verify program settings: Double-check the configured operating mode (P1-P4) and time parameters. Incorrect settings can lead to unexpected behavior.
- Incorrect Timing or Unexpected Behavior:
- Re-check program settings: Confirm that the desired operating mode and time values are correctly set and saved.
- Verify time unit: Ensure the correct time unit (seconds, 0.1 seconds, or minutes) is selected for your application.
- Reset the module: Power cycle the module (disconnect and reconnect power) to clear any temporary errors.
- LED Display Not Working or Showing Errors:
- Check power supply: Insufficient or unstable power can affect the display.
- Contact support: If the display remains unresponsive or shows persistent error codes after basic checks, contact Hilitand customer support.
Video: Dual High-Power MOSFET Switch Overview
This video showcases the Hilitand Dual High-Power MOSFET Switch, highlighting its design and components, which are similar to the timer module's output stage.
7. Warranty and Support
Specific warranty details and direct customer support contact information are not provided in the available product data. For warranty claims or technical assistance, please refer to the retailer or the official Hilitand website where the product was purchased.