Delay Relay Module for Fail-Safe Magnetic Lock | DC 12V–24V
Delay Relay Module for Fail-Safe Magnetic Lock | DC 12V–24V
LIHTNE LX-YS5 Delay Relay Module for Fail-Safe Magnetic Locks
Keep your access control system running smoothly with the LIHTNE LX-YS5 Delay Relay Module. Designed specifically for fail-safe magnetic lock installations, this compact relay module gives you precise, adjustable control over door-release timing — making it an essential component for offices, server rooms, apartment entrances, and any secure entryway.
Key Features
- Adjustable Delay Timer: Set the unlock delay anywhere from 0 to 20 seconds to match your specific access control requirements.
- Wide Voltage Compatibility: Operates on DC 12V–24V, making it compatible with the vast majority of standard access control power supplies.
- 2A Current Rating: Handles up to 2 amps — sufficient for typical electromagnetic door locks.
- Built-In Bridge Rectifier: The pulse voltage unlock input (L+/L−) features a built-in bridge rectifier, so you can connect the unlock signal without worrying about positive/negative polarity.
- Sound & Light Indicators: Integrated audible buzzer and LED visual indicator provide clear confirmation of module status and unlock events.
- Versatile Interface: Includes a 2-wire power input, 2-wire magnetic lock interface (B+/B−), 2-wire pulse voltage unlock input (L+/L−), and a 3-way outlet interface for maximum installation flexibility.
- Compact Form Factor: Measures just 38 × 72 × 20 mm — easy to fit inside a standard control box or panel.
Technical Specifications
| Brand | LIHTNE |
| Model | LX-YS5 |
| Working Voltage | DC 12V – 24V |
| Current Rating | 2A |
| Delay Range | 0 – 20 Seconds (Adjustable) |
| Dimensions | 38 × 72 × 20 mm |
| Interfaces | Power Input (VDD/GND), Magnetic Lock (B+/B−), Unlock Pulse Input (L+/L−), 3-Way Outlet |
| Indicators | Sound & LED Light |
| Country of Origin | Made in China |
What's in the Box
- 1 × LIHTNE LX-YS5 Delay Relay Module
Installation Overview
- Connect your DC 12V–24V power supply to the VDD and GND terminals.
- Wire your fail-safe magnetic lock to the B+ and B− terminals.
- Connect your exit button or access controller output to the L+ and L− pulse unlock input (polarity-free).
- Adjust the onboard potentiometer to set your desired delay time (0–20 seconds).
- Use the 3-way outlet interface for additional peripheral connections as needed.
For general electrical safety guidance when working with low-voltage control systems, refer to the U.S. Consumer Product Safety Commission (CPSC).
Frequently Asked Questions
Q: What voltage does the LIHTNE LX-YS5 delay relay module support?
A: The module operates on DC 12V to DC 24V, making it compatible with most standard access control power supplies used in residential and commercial installations.
Q: Can I connect the unlock pulse signal without checking polarity?
A: Yes. The L+/L− pulse voltage unlock input features a built-in bridge rectifier, so the signal can be connected regardless of positive or negative orientation — simplifying installation and reducing wiring errors.
Q: How do I adjust the unlock delay time?
A: The delay is adjusted via the onboard potentiometer. You can set it anywhere from 0 to 20 seconds to suit your specific door-release timing needs.
Q: Is this module compatible with fail-safe magnetic locks only, or can it work with fail-secure locks too?
A: This module is designed primarily for fail-safe magnetic locks (locks that release when power is cut). Verify your lock's operating mode before installation to ensure compatibility.