UCTRONICS DC 12V Programmable Time Delay Relay Module — Metal Enclosure, 18 Modes, 0.1s–270h

The UCTRONICS DC 12V Programmable Time Delay Relay Module is a compact, metal-enclosed timer relay offering 18 selectable modes and adjustable delays from 0.1 seconds up to 270 hours for automotive, Raspberry Pi, and industrial controls.

This programmable time delay relay combines a robust metal housing with flexible timing options and a protected input design so you can add automated on/off control to circuits without custom firmware. It supports DC 12V operation with low quiescent current, can switch up to 10A loads, and preserves your chosen settings through power cycles. The module is designed for use where reliable timed switching is needed — from modifying car accessories to controlling pumps, LEDs, or PLC interface signals.

How does the UCTRONICS timer module adapt to different project needs?

The module provides 18 working modes including on delay, off delay, repeat loops, and combinations with or without high-level trigger. Delay times are adjustable over a very wide range (0.1s to 270h), letting you set anything from short pulses to multi-day intervals. Settings are retained after power loss, avoiding repeated setup.

• 18 programmable operating modes for diverse behaviors
• Delay range: 0.1 seconds to 270 hours for precise timing
• Saves configuration automatically; no repeated reprogramming
• Reverse-polarity protection to prevent damage from incorrect wiring

Can I use this relay with automotive and Raspberry Pi projects?

Yes — the module runs at DC 12V and can switch DC loads up to 28V or AC loads to 125V with a 10A maximum current, making it suitable for many vehicle circuits and hobby electronics. It’s compatible with PLC digital outputs and sensors that provide positive voltage pulses, so it can be driven by GPIO pins through appropriate buffering or driver stages. The metal case provides mounting durability for mobile or bench installations.

• Operating voltage: DC 12V; quiescent current: 5.5mA
• Switching capability: up to 10A load current
• Direct use with sensor NPN/PNP or PLC outputs that supply positive pulses
• Metal enclosure with cutouts for terminals, display and buttons

How easy is it to install and operate the timer module?

The front panel includes a clear digital display, push buttons for mode and time adjustment, and LED indicators for status, so programming is straightforward without additional software. Terminal blocks are accessible through dedicated cuts in the metal case for neat wiring. The unit’s automatic memory saves chosen settings, making it convenient for repeated deployments.

• Front-facing display and buttons for on-device programming
• LED indicators show relay and timing status at a glance
• Custom metal housing with precise terminal cutouts for tidy wiring
• Stored settings preserved after power interruptions

What safety and protection features are built into the product?

The board includes reverse polarity protection to guard the module if power leads are mistakenly reversed. Rated for a maximum load current of 10A, it should be paired with appropriate fuses or circuit protection when driving inductive or high-current loads. The metal enclosure adds physical protection and helps with mounting in demanding environments.

• Reverse connection protection to reduce risk of damage
• Metal enclosure for mechanical protection and secure mounting
• Use recommended fusing when switching motors, pumps, or inductive loads
• Rated switching limits: DC 28V or AC 125V, max 10A

Who is this for: This UCTRONICS timer relay fits hobbyists, electricians, and engineers who need reliable programmable timing without writing code — useful for vehicle automation, DIY home automation, Raspberry Pi or Arduino-controlled projects, and industrial control prototypes. If you require long-duration delays, saved settings after power loss, and a sturdy enclosure for workshop or mobile use, this module is a practical, off-the-shelf solution.