Mounting Plate for Enclosure sizes:

11.81″ x 11.81″ x 5.19″ (300 x 300 x 132mm)
11.81″ x 11.81″ x 7.36″ (300 x 300 x 187mm)
11.81″ x 23.62″ x 5.19″ (300 x 600 x 132mm)
11.81″ x 23.62″ x 7.36″ (300 x 600 x 187mm)
10.23″ x 10.23″x 0.05 (260 x 260 x 1.5mm)