Description
This item is a protective grille for our wall mounted, large and extra large outdoor digital clocks.
Suitable for indoor or outdoor use in sports halls, factories, yards, laboratories, schools and public areas.
It creates a safety cage for a clock to protect against damage by balls and other equipment in sports halls as well as resisting all but the most determined vandalism.
With 2 year warranty.

Online ordering
Please add a clock to the shopping basket first before adding this protective grille.
Then select the grille to suit your clock name from the dropdown above – please email us if you have any query.
(Each grille is sized to suit a specific size and version of clock to ensure a good fit and optimium protection.)
We will ensure that a grille will be not be shipped if it does not match the clock that you have ordered.
Grilles are manufactured to order for us in UK and will typically add 2-3 weeks to your clock delivery leadtime.
Protective Grille Dimensions
To suit clock ZB40
(H) 584 x (W) 1448 x (D) 152mm
Mesh:25.4mm x 25.4mm x 2.5mm
Frame: 8mm
To suit clock ZA40
(H) 584 x (W) 1016 x (D) 152mm
Mesh:25.4mm x 25.4mm x 2.5mm
Frame: 8mm
To suit clock ZB30
(H) 432 x (W) 1016 x (D) 152mm
Mesh:25.4mm x 25.4mm x 2.5mm
Frame: 8mm
To suit clock ZA30
(H) 432 x (W) 737 x (D) 152mm
Mesh:25.4mm x 25.4mm x 2.5mm
Frame: 8mm
To suit clock ZB20
(H) 400 x (W) 1200 x (D) 120mm
Mesh:25.4mm x 25.4mm x 2.5mm
Frame: 8mm
To suit clock ZA20
(H) 400 x (W) 737 x (D) 120mm
Mesh:25.4mm x 25.4mm x 2.5mm
Frame: 8mm
Clock Dimensions (WxHxD in mm)
1336 x 472 x 90 – ZB40 clock HH:MM:SS with 400mm digits
904 x 472 x 90 – ZA40 clock HH:MM with 400mm digits
904 x 328 x 90 – ZB30 clock HH:MM:SS with 270mm digits
616 x 328 x 90 – ZA30 clock HH:MM with 270mm digits
900 x 288 x 45 – ZB20 clock HH:MM:SS with 200mm digits
616 x 288 x 45 – ZA20 clock HH:MM with 200mm digits
512 x 186 x 45 – ZB10 clock HH:MM:SS with 100mm digits
349 x 186 x 45 – ZA10 clock HH:MM with 100mm digits
408 x 141 x 42 – ZB5 clock HH:MM:SS with 50mm digits
298 x 141 x 42 – ZA5 clock HH:MM with 50mm digits
Multi-layer protection for the grille
BZP (Bright Zinc Plate): First plating to 8-micron depth, prevents oxidisation of the steel and results in an attractive silver-blue colour
JS500 Silver (Electro Galv): is then applied as our final finish (on top of the BZP).
It is a non-toxic leach process which forms a protective layer to further improve corrosion resistance for use in more extreme environments; humidity, abrasion, corrosion and outdoors. It is water based and non-hazardous, protecting the surface from salts and other chemicals. This plating process adds an iridescent finish.
British Standard Salt Test
The above coatings are subjected to British Standard Salt Test (results are shown below in hours)
the minimum time for the coating to secrete zinc oxide in the form of a white powder. These figures
have been obtained from BS1706:1990 electro coating of zinc and cadmium on iron and steel methods.
We do not recommend any of the above finishes be subject to harsh cleaning agents or detergents as
this may shorten the life of the product.
▪ BZP finish single layer protection: 48 hours under salt test
▪ BZP plus JS500 multi-layer protection : 250 hours under salt test




