For example for a 3 pane bifold door the code 330 refers to the following-
The first number 3-3-0 is the amount of panels: i.e. 3 panels
The 2nd & 3rd numbers 3-3-0 refer to the number of panels to the left and to the right viewed from the outside. In this example there are 3 panels opening to the left and 0 panels to the right.
Below is the image for a bifold door with 330 configuration.
Width and Height Information
In Sash Width: 700mm
Max Sash width: 1200mm
Max Height: 2500mm
Max Sash Weight: 100kg