Lockwood TB25-1 Drop Bolt — 12–24 VDC Fail Safe Monitored
The Lockwood Padde Series TB25 range of Drop Bolts represents true engineering innovation, design excellence, and the superior quality expected from Lockwood. Designed for swing-through double action doors, these bolts are ideal for situations where an electric strike is impractical, delivering high security and reliable monitored performance.
Warranty
- 5 Year Tricare Warranty (Padde Series)
- Lockwood 25 Year Mechanical Warranty (Conditions Apply)
Key Features
- High security: bolt is deadlocked in the extended position
- Integrated bolt position monitoring
- Door position monitor with integrated magnet in strike plate (no separate reed required)
- Multi-orientation: operates horizontally or vertically
- Power-to-Lock / Power-to-Open variants available
- Continuously rated solenoid
- Tamper proof: cannot be defeated with tools between lock and strike
- Intelligent electronics: up to 8 auto re-lock attempts, 8 sec unlock delay
- Thermal fuse protection prevents overheating fire risk
Specifications
- Item Code: TB25-1
- Voltage: 12–24 VDC
- Start Current: 1100 mA @12 V / 1000 mA @24 V
- Holding Current: 210 mA @12 V / 90 mA @24 V
- Holding Force: 1000 kg
- Locking Mode: Fail Safe (non field-selectable)
- Monitoring: Bolt + Door position contacts
- Dimensions (Mortice): 164 × 22 mm
- Bolt Size: 12.7 × 16 mm
- Face Plate: 10 × 25 mm, Stainless Steel
- Construction: Anti-corrosion, stainless steel faceplate & strike
What's In The Box
- TB25-1 drop bolt lock body
- Stainless steel faceplate & strike plate
- Integrated door position magnet
- Fixing screws
- Installation instructions
Suitable Uses
- Swing-through double action doors
- Applications where electric strikes are impractical
- Misaligned doors
- Timer-controlled doors
- High-security fire-rated applications
Dispatch & Returns
- Estimated Warehouse Dispatch: 2–4 business days when in stock (call to confirm)
Download PDF Resources
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Lockwood Electromechanical Door Solutions Catalogue |
|
Lockwood 25 Year Mechanical Warranty (Conditions Apply) |
Item Code Family
Accessories
Additional Information
Specification Statement: The TB25 drop bolt shall operate in both horizontal and vertical orientations. Bolt and door positions must be monitored, with an integrated reed switch provided in the strike plate. Electronics must provide up to 8 lock/unlock attempts, 8 second unlock delay, automatic relock, power reduction circuitry, and a one-time thermal fuse cut-out. Face plate and strike plate must be stainless steel.
Lockwood Warranty Overview
Lockwood branded products are covered by manufacturer warranties issued by ASSA ABLOY Australia Pty Ltd. Warranty periods vary depending on product type, mechanical components, electrical elements, and finish category.
This overview summarises the structure of Lockwood warranty coverage. Full terms, exclusions and claim procedures are set out in the official Lockwood Warranty document.
Warranty Periods 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.
- Decorative finishes including 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 will naturally age and change appearance over time. This is not considered a defect.
- Tea staining of stainless steel is not covered where cleaning and maintenance have not been followed.
What the Warranty Covers
- Defects in material and workmanship during the applicable warranty period.
- Assessment by ASSA ABLOY to determine repair, replacement with the same or closest equivalent product, or refund of purchase price.
Common 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.
Warranty Claim Process
- Retain proof of original purchase.
- Return the product through the original place of purchase where applicable.
- If claiming directly, obtain a case number before returning goods.
- Products must be securely packed and clearly identified.
- Warranty assessment determines repair, replacement or refund.
Australian Consumer Law
Lockwood warranties operate in addition to rights available under the Australian Consumer Law. Goods come with guarantees that cannot be excluded. Customers may be entitled to a replacement or refund for a major failure and compensation for reasonably foreseeable loss or damage.
Where a product fails to meet acceptable quality standards and the failure does not amount to a major failure, the customer is entitled to repair or replacement.
