Remsafe Black Window Restrictor Block Lock

I/N: 0026019
Price correct as at Mon 27 May 2019 6:32:10pm
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Product Description

The Remsafe Block Lock is a versatile safety lock for sliding windows. It is an ideal alternative to existing window safety devices for installations with limited window sill or where the sill is greater than 4 mm thick.

The Block Lock is an innovative product that allows the resident to lock the safety device in position, and then open and close the window to that position without using a key to lock and unlock each time.

The reversible stop piece may also be locked in the inactive position to allow the window to be opened to its full extent when safe to do so.

  • Easy DIY installation
  • Tested in Australia to comply with safety requirements under Australian legislation
  • Keyed alike across the Remsafe range
  • Australian owned and designed
  • Child resistant release mechanism allows the window to be opened to its full extent if required

Product Details

Model Name
Remsafe Block Lock Black
Model Number
Product Dimensions (mm)
W:20 H:40 L:48
Package Dimensions (mm)
W:48 H:44 L:31
Keys Included
Number of Keys

Product Downloads

Installation Guide
User Guide

Additional Info

Installation Info


1. With the window in a closed position, use a tape measure to measure a maximum opening distance of 12.5cm on the window track and mark with a pencil. The opening distance must not exceed 12.5 cm at any point.

2. Hold the Remsafe Block Lock in the installation position on the window sill with the stop plate in line with the pencil mark at 12.5 cm. The lock body may be fitted either horizontally or vertically.

3. Whilst holding the body of the Remsafe Block Lock in the installation position remove the stop plate from the body of the lock to reveal the fixing screw holes. Use a pencil to mark the position of the fixing screw holes on the window sill through the body of the lock.

4. Drill the screw fixing holes in the window sill using the appropriate drilling method for your installation (for example, tiles, timber or metal).

5. Screw the Remsafe Block Lock body in place.

6. To insert the stop plate in the restricted position, ensure the angle plate is facing the window and lock in position with the key. The lock may be unlocked with the key and the stop plate may be removed and reversed so the angle plate is facing away from the window to enable the window to open to its full extent. The stop plate may be locked in the reverse position with the key to prevent removal.

7. Test lock function by locking and unlocking with the key. Ensure the stop plate is securely locked into the lock body. The key must be used to lock the lock. Ensure the opening distance does not exceed 12.5cm.


The manufacturer recommends maintenance is carried out on Remsafe products by a licensed tradesman every twelve (12) months. In addition, it is recommended that regular checks (every three to six months) are carried out by the user of each window safety device at the time of operation. Repeated force on a Remsafe Window Locks safety device may lead to general wear and tear and cause screws to become loose.

Consideration must be given to the local environment and maintenance carried out accordingly.

1. All screws must be checked to ensure they have not loosened. Loose screws must be tightened.

2. All lock components must be checked for any signs of corrosion, cracking, or loss of function. Any locks showing signs of corrosion, cracking, or loss of function must be replaced immediately.

3. All components must be checked to ensure against excessive movement. Any lock showing excessive movement must be replaced immediately.

4. If a window is able to be opened greater than 125 mm at any point a licensed tradesperson should be consulted for advice on the most appropriate window restrictor device for each window.

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