Professional Grade Security for Commercial Doors

When it comes to building security, you need hardware you can trust. The YLI YB-100S Electric Bolt Lock is a heavy-duty, concealed locking mechanism designed for modern access control systems. Operating on a standard 12V DC power supply, it integrates seamlessly with RFID keypads, biometric scanners, and intercom systems. Its concealed mortise installation provides a clean, tamper-resistant finish, making it the top choice for corporate offices, retail storefronts, and secure server rooms.

Fail-Safe Operation for Fire Safety Compliance

Safety is just as important as security. The YB-100S operates on a Fail-Safe mechanism (also known as "Power to Lock"). This means the lock requires continuous electrical power to keep the bolt extended. In the event of a building power failure or a triggered fire alarm, the power is cut, and the bolt automatically drops to unlock the door. This ensures personnel can evacuate safely and quickly without being trapped inside.

Ultra-Low Temperature & Durable Design

Traditional electric locks often overheat, leading to coil burnout and premature failure. The YLI YB-100S features an advanced ultra-low temperature design, ensuring the lock body remains cool even under continuous 24/7 operation. The locking bolt itself is machined from solid stainless steel, boasting a 16mm diameter and 16mm protrusion, providing massive holding force against forced entry.

💡 Pro Tip from Our Technicians

"A common mistake when installing electric drop bolts is underestimating the power supply. While the YB-100S only draws 120mA in standby, it requires a 900mA inrush current for a fraction of a second to push the bolt up. Always use a dedicated access control power supply (like a 12V 3A or 5A unit) rather than a cheap CCTV adapter. If you are unsure how to wire the NC (Normally Closed) and COM terminals to your keypad, drop by our Sham Shui Po store! Our team at Sun Cheong Computer Co. Ltd. will draw out the exact wiring diagram for your specific door setup."