DC 12V/24V Digital Timer Relay Module 3-Digit Display 30A
DC 12V/24V Digital Timer Relay Module 3-Digit Display 30A
DC 12V/24V Digital Timer Relay Module — 3-Digit Display, 30A Output
Take precise control of your automation and switching projects with this versatile DC 12V/24V Digital Timer Relay Module. Featuring a bright 3-digit red LED display and a wide timing range from 1 second to 999 hours, this compact module is ideal for hobbyists, engineers, and DIY electronics enthusiasts who need reliable, adjustable time-based switching.
Key Features
- Dual Voltage Support: Compatible with both 12V DC and 24V DC power supplies for flexible integration.
- Wide Timing Range: Set countdowns from 1–999 seconds, 1–999 minutes, or 1–999 hours to suit virtually any automation task.
- 3-Digit Red LED Display: Clearly shows remaining countdown time during operation; reverts to set time when idle — no guesswork required.
- Power-Off Memory: Automatically restores your last saved settings when power is reconnected, so you never have to reprogram after an outage.
- High-Capacity 30A Output: Supports loads up to 30A (0–250V AC or 0–30V DC), making it suitable for motors, solenoids, pumps, and other high-current devices.
- Normally Open + Normally Closed Contacts: One set of NO/NC output contacts gives you maximum wiring flexibility for trigger-on or trigger-off applications.
- Passive Dry-Contact Output: Operates as a pure switch (no output voltage), compatible with a wide range of external circuits and controllers.
- Easy Button Adjustment: Onboard push-button interface makes time setting quick and intuitive — no software or programming needed.
- Low Power Consumption: Draws only 0.9W, keeping your system efficient and cool.
- High Accuracy: 1-second resolution with ≤0.50% error ensures dependable, repeatable timing performance.
Technical Specifications
| Parameter | Value |
|---|---|
| Input Voltage | DC 12V / 24V |
| Power Consumption | 0.9W |
| Timing Range | 1–999 sec / 1–999 min / 1–999 hrs |
| Display | 3-digit red LED digital tube |
| Timing Accuracy | 1 second / ≤0.50% error |
| Trigger Method | Short-circuit trigger ≥0.025 seconds |
| Output Contacts | 1× Normally Open + 1× Normally Closed |
| Output Capacity | 30A (0–250V AC or 0–30V DC) |
| Output Mode | Passive dry contact (switch only) |
| EU LVD Voltage | Low voltage: Below 50V AC or 75V DC |
What's in the Box
- 1× Digital Timer Relay Module
Made in Mainland China.
For guidance on safe electrical wiring practices and standards, visit the OSHA Electrical Safety resource.
Frequently Asked Questions
Q: What devices can I control with this DC 12V/24V digital timer relay module?
A: This timer relay module can control a wide range of devices including pumps, motors, solenoids, lighting systems, fans, and other loads up to 30A at 0–250V AC or 0–30V DC. Its passive dry-contact output makes it compatible with most external circuits and controllers.
Q: Will my timer settings be lost if the power goes out?
A: No. This module features built-in power-off memory, which means it automatically restores your last programmed time setting when power is reconnected — so your automation system resumes without any manual reprogramming.
Q: Can I use this module with both 12V and 24V DC systems?
A: Yes. The module is designed to work with both 12V DC and 24V DC input power, giving you the flexibility to integrate it into a wide variety of electrical systems and DIY projects.
Q: How do I adjust the countdown time on this relay module?
A: Time adjustment is done using onboard push-buttons — no software, computer, or programming interface is required. You can set the desired countdown in seconds, minutes, or hours (up to 999 of each unit) directly on the module.