DC 12V Electric Bolt Lock – Small Electromagnetic Door Lock
DC 12V Electric Bolt Lock – Small Electromagnetic Door Lock
DC 12V Small Electric Bolt Lock for Door Access Control
Take control of your entry points with this compact DC 12V Electric Bolt Lock. Designed for access control systems, this small electromagnetic bolt lock delivers reliable, repeatable locking performance for cabinets, drawers, lockers, display cases, and light-duty doors. Simply apply power to unlock — power off to lock — making integration with keypads, card readers, or timers straightforward and hassle-free.
Made in Mainland China.
Key Features
- Power-On Unlock / Power-Off Lock – Fail-secure design keeps the bolt engaged whenever power is removed
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Multiple Models Available – Choose the stroke length that matches your application:
- LY-03A: DC 12V / 0.8A / 9.6W — 8 mm stroke
- LY-03B: DC 12V / 0.8A / 9.6W — 10 mm stroke
- LY-01A: DC 12V / 1A / 12W — 9 mm stroke
- Compact Form Factor – Small profile fits tight spaces where larger locks simply won't
- Low Power Draw – Efficient 9.6–12W operation keeps energy costs minimal
- Intermittent-Duty Optimized – Engineered for cycle-based use (e.g., 1 second on / 1 second off); avoid prolonged continuous energizing to maintain optimal service life
- Quick Unlock Response – Recommended unlocking duration: 0–5 seconds per cycle
Specifications
| Operating Voltage | DC 12V |
| Working Mode | Power ON = Unlock / Power OFF = Lock |
| Model LY-03A | 0.8A / 9.6W / 8 mm stroke |
| Model LY-03B | 0.8A / 9.6W / 10 mm stroke |
| Model LY-01A | 1A / 12W / 9 mm stroke |
| Recommended Unlock Time | 0–5 seconds per cycle |
| Duty Cycle | Intermittent (avoid continuous energizing) |
| Origin | Made in Mainland China |
Ideal Applications
- Cabinet and drawer security
- Locker and storage unit access control
- Display case locking systems
- Light-duty door entry control panels
- DIY smart home or automation projects
Important Usage Notes
This electromagnetic bolt lock is designed for intermittent operation. Avoid keeping the lock energized for long, uninterrupted periods, as this can cause the coil temperature to rise and shorten the component's service life. Operating in a cool environment further extends longevity. Always ensure your power supply delivers a stable DC 12V before installation.
What's in the Box
- 1 × Electric Bolt Electromagnetic Lock
For general guidance on electronic security hardware installation and best practices, visit the U.S. Consumer Product Safety Commission (CPSC).
Frequently Asked Questions
Q: What does "power-on unlock, power-off lock" mean for this electric bolt lock?
A: This is a fail-secure configuration. When DC 12V power is applied to the lock, the bolt retracts and the door or cabinet can be opened. When power is cut — whether intentionally or during an outage — the bolt automatically extends and locks the door. This is ideal for security applications where you want the entry point to remain locked when the system is off.
Q: How do I choose between the LY-03A, LY-03B, and LY-01A models?
A: The main difference is the bolt stroke length (how far the bolt extends): LY-03A has an 8 mm stroke, LY-03B has a 10 mm stroke, and LY-01A has a 9 mm stroke at slightly higher power (1A/12W). Choose the model whose stroke length best matches the depth of the catch or hole in your mounting surface. If you need a deeper bolt engagement for a more secure fit, opt for LY-03B.
Q: Can I use this electric bolt lock for continuous operation (always powered)?
A: This lock is designed for intermittent-duty use — for example, cycling on and off in short bursts (approximately 1 second on / 1 second off). Running it continuously for extended periods causes the internal coil to heat up, which can degrade performance and shorten its service life. For applications requiring constant energizing, consider a lock rated for continuous duty.
Q: What power supply do I need for this bolt lock?
A: You need a regulated DC 12V power supply with sufficient current output. The LY-03A and LY-03B models draw 0.8A each, while the LY-01A draws 1A. A standard 12V DC power adapter or access control power supply with at least 1A capacity will work. Ensure your wiring is secure and the voltage is stable to avoid erratic locking behavior.
Q: Is this lock suitable for outdoor use?
A: The product data does not specify an IP or weatherproof rating for this bolt lock. It is best suited for indoor applications such as cabinets, drawers, lockers, and interior doors. If outdoor use is required, you should house it in a weatherproof enclosure to protect the electronics from moisture and dust.