
Lockwood 89mm Electric Mortice Lock Fail Secure - Monitored - Key Override - No Cylinder
The Lockwood 4572ELEM0LSC Electric Mortice Lock is a high performance access control locking solution designed for commercial applications requiring secure electronic control.
This fail secure model remains locked when power is removed and includes full monitoring capability, allowing integration with advanced access control and security systems.
Manufactured in Australia, it is widely used in commercial buildings, government facilities, and secure access environments.
Usually ships in 10 days
Key Features
- Fail secure operation - remains locked when power is removed
- Monitored lock with multiple feedback signals
- Multi-voltage operation - 12 to 24 Volt Direct Current
- Field configurable fail safe or fail secure setup
- Suitable for left hand and right hand door installation
- Key override functionality for manual access
- Compatible with access control systems including keypads and card readers
Suitable Uses
- Commercial access control doors
- Office buildings and secure entry points
- Government and institutional facilities
- Doors integrated with intercom or keypad systems
- High security areas requiring monitoring feedback
Specifications
Dimensions
Standard 89mm backset mortice lock body. Refer to manufacturer documentation for detailed cut-out and installation dimensions.
Frequently Asked Questions
What does fail secure mean?
Fail secure means the lock remains locked when power is removed, maintaining security during power loss.
Can this lock be used with access control systems?
Yes, it is designed for integration with intercoms, keypads, card readers and other access control systems.
Does this include a cylinder?
No, this model is supplied without a cylinder and requires a compatible cylinder to be installed separately.
Additional Information
- Commonly specified in Australian commercial and government projects
- Monitoring functions allow integration with building management systems
- Incorrect wiring is a common installation issue - ensure correct voltage supply
- Suitable for high security environments when paired with appropriate access control systems
25 Year mechanical warranty
Lockwood Floor Closers Catalogue

Lockwood Floor Closers Catalogue
Lockwood Warranty
Lockwood branded products are covered by manufacturer warranties issued by ASSA ABLOY Australia Pty Ltd. Warranty periods vary by product type, with separate cover for mechanical components, electrical and electronic parts, keys, and finishes.
The summary below sets out the standard warranty structure. All warranty claims are handled by Terry's Tradies Pty Ltd and its associated websites, trading names, and subsidiaries. Full terms and exclusions are set out in the official Lockwood warranty document linked at the base of this page.
Warranty Summary
Finish Coverage Guide
- Everbrass finishes: up to 25 years against corrosion, tarnishing and discolouration.
- Stainless steel, polished stainless steel, chrome plating and anodised finishes: typically up to 10 years.
- PVD and VIVID finishes: typically up to 10 years.
- Symmetry range finishes: typically up to 5 years.
- Decorative finishes (Antique Copper, Architectural Bronze, Oil Rubbed Bronze, Aged Brass, Polished Brass, Satin Brass and related variants): typically up to 2 years against corrosion.
- Unlacquered brass finishes naturally age and change appearance over time. This is not considered a defect.
- Tea staining of stainless steel is not covered where the required cleaning and maintenance have not been followed.
How to Make a Claim
- Contact Terry's Tradies Pty Ltd and its associated websites, trading names, and subsidiaries with your proof of original purchase.
- Keep the product securely packed and clearly identified, ready for assessment.
- Where a claim is escalated to the manufacturer, ASSA ABLOY may issue a case number before goods are returned.
- ASSA ABLOY assesses the claim and determines repair, replacement with the same or closest equivalent product, or refund of the purchase price.
Exclusions
- Normal wear and tear.
- Misuse, abuse, accidental damage or use outside published specifications.
- Improper maintenance or failure to follow care instructions.
- Unauthorised modification, repair or use of non-genuine parts.
- Exposure to corrosive environments including coastal air, salt spray, chemicals or pollution.
- Removal, refitment or associated labour charges.
- Products not originally sold in Australia through authorised channels.
These manufacturer warranties apply in addition to your rights under the Australian Consumer Law. Our goods come with guarantees that cannot be excluded under the ACL. You are entitled to a replacement or refund for a major failure and to compensation for any other reasonably foreseeable loss or damage. Where a failure does not amount to a major failure, you are entitled to have the goods repaired or replaced.