Is the 1000kg holding force real or exaggerated?

It is real and not exaggerated. According to the manufacturer's third-party testing, the 304 stainless steel solid bolt has a static strength of approximately 950kg and a maximum holding force of 1000kg against forced entry.

Do you provide wiring instructions or installation services?

We offer professional access control installation services for your convenience. However, please note that we do not provide DIY wiring tutorials; our in-store staff can only help you test the lock to ensure it is functioning normally before you take it home.

What does "Fail Safe" mean for this electric bolt lock?

"Fail Safe" means that the lock requires electrical power to stay locked. If the power supply is cut off due to a power outage or a fire alarm trigger, the bolt will automatically retract and unlock the door, ensuring people can safely exit the building during an emergency.

Can I install the YB-500A(LED) on a frameless glass door?

You cannot install the YB-500A(LED) directly onto a frameless glass door out of the box. To mount this lock on a 10-15mm thick frameless glass door, you must use a compatible U-bracket accessory (such as the BBK-600, 601, or 602 series) to grip the glass without drilling.

How do I adjust the auto-lock time delay?

You can adjust the auto-lock time delay by configuring the small DIP switches located on the side of the lock body. By following the diagram printed on the lock, you can set the delay to 0, 3, 6, or 9 seconds to ensure the door is fully closed before the bolt drops.

YLI YB-500A(LED) Electric Bolt Lock

Name: YLI YB-500A(LED) Electric Bolt Lock | Fail Safe 12VDC
Brand: YLI Electronic
SKU: 21TS001493
Price: 1596.0 TWD
Availability: InStock

Short Product Description

TheYLI YB-500A(LED) Electric Bolt Lockis an industrial-grade, fail-safe access control lock designed for wooden, glass, metal, and PVC doors. Featuring a solid 304 stainless steel bolt with a verified 1000kg holding force, adjustable time delays, and an integrated LED status indicator, it provides maximum security while ensuring emergency exit compliance. Available atSun Cheong Computer Co. Ltd.(新昌電腦有限公司) in Sham Shui Po, we offer professional access control installation services or in-store hardware testing for DIY buyers.

Key Features

Fail-Safe Security: Automatically unlocks when power is disconnected, ensuring full compliance with emergency fire and safety exit regulations.
Verified 1000kg Holding Force: The 16mm diameter, 304 stainless steel solid bolt provides massive resistance against forced entry (tested to 950kg static strength).
Adjustable Time Delay: Built-in DIP switches allow you to set the auto-lock delay to 0, 3, 6, or 9 seconds to match your door closer's speed.
LED Status Indicator: Features a built-in LED light that illuminates green when the door is securely locked and turns off when unlocked.
Door Status Output: Provides a NO/COM signal output contact, allowing your access control panel to monitor the door's open/close status remotely.
Installation Services Available: We offer professional on-site installation services for commercial and residential access control systems.

Full Product Description

High-Security Access Control for Modern Doors

The YLI YB-500A(LED) Electric Bolt is a heavy-duty locking mechanism designed to integrate seamlessly into commercial access control and intercom systems. Constructed with a solid 304 stainless steel bolt machined by a CNC lathe, it boasts an incredible static holding force of approximately 950kg to 1000kg to resist burglary and forced entry. Its versatile narrow-panel design allows for flush mounting inside the door frames of wooden, metal, PVC, and framed glass doors, providing a clean and professional security solution.

Fail-Safe Operation for Emergency Compliance

This Electric Drop Bolt operates on a strict "Fail Safe" principle, meaning it requires continuous power to stay locked and will automatically unlock the moment power is cut. This critical safety feature ensures that in the event of a building power outage or a triggered fire alarm, doors will immediately release to allow personnel to evacuate safely. It operates on a standard 12VDC power supply, drawing 960mA during the initial locking phase and dropping to an energy-efficient 180mA during standby.

Professional Installation & Hardware Testing

When purchasing this Fail Safe Electric Bolt, please note that our Sham Shui Po technical team does not provide DIY wiring tutorials or schematics. However, we do offer comprehensive, professional access control installation services for your office or retail shop. If you are a contractor or an experienced DIYer purchasing this lock for self-installation, our in-store staff will gladly help you power on and test the lock before you leave to ensure it is functioning perfectly.

Technical Specifications

Brand: YLI Electronic
Model: YB-500A(LED)
Feature: Fail Safe (Power to Lock)
Voltage: 12VDC (24VDC available by special order)
Start Current: 960mA
Standby Current: 180mA
Autolock Time Delay: 0, 3, 6, 9 seconds (Adjustable)
Bolt Structure: 304 Stainless Steel (16mm Diameter, 13mm Throw)
Static Strength: Approx. 950kg (1000kg holding force)
Signal Output: Door status signal NO/COM
Induction Distance: 8mm
Face Plate Dimensions: 192mm(L) x 25mm(W) x 37mm(H)
Weight: 0.68kg

Delivery Options

Local delivery within Hong Kong and in-store pickup.
Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.
Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).
Estimated delivery time: 1–3 business days after dispatch (Hong Kong).
In-store pickup details (location and time) will be confirmed by email or phone message.
Delivery times are estimates and may be affected by weather or unforeseen circumstances.

FAQ Section

Is the 1000kg holding force real or exaggerated?It is real and not exaggerated[1]. According to the manufacturer's third-party testing, the 304 stainless steel solid bolt has a static strength of approximately 950kg and a maximum holding force of 1000kg against forced entry[1][2].
Do you provide wiring instructions or installation services?We offer professional access control installation services for your convenience. However, please note that we do not provide DIY wiring tutorials; our in-store staff can only help you test the lock to ensure it is functioning normally before you take it home.
What does "Fail Safe" mean for this electric bolt lock?"Fail Safe" means that the lock requires electrical power to stay locked. If the power supply is cut off due to a power outage or a fire alarm trigger, the bolt will automatically retract and unlock the door, ensuring people can safely exit the building during an emergency.
Can I install the YB-500A(LED) on a frameless glass door?You cannot install the YB-500A(LED) directly onto a frameless glass door out of the box. To mount this lock on a 10-15mm thick frameless glass door, you must use a compatible U-bracket accessory (such as the BBK-600, 601, or 602 series) to grip the glass without drilling.
How do I adjust the auto-lock time delay?You can adjust the auto-lock time delay by configuring the small DIP switches located on the side of the lock body. By following the diagram printed on the lock, you can set the delay to 0, 3, 6, or 9 seconds to ensure the door is fully closed before the bolt drops.

Target Users / Applications

Office Security Integrators: Installing flush-mounted, high-security drop bolts in corporate wooden or metal doors that integrate with RFID card readers.
Retail Shop Owners: Securing storefront glass doors (using additional U-brackets) with a lock that automatically opens during a fire alarm.
Smart Home DIYers: Upgrading home security by connecting a heavy-duty 12VDC fail-safe lock to a smart relay or home automation controller.