Case D (430) with dimensions of 430 × 400 × 133 mm has 8 slots for LineProtect Fibra, LineSplit Fibra, MultiRelay Fibra, or LineSupply Fibra and two up to 18 Ah batteries.
Case D (430) can fit a variety of Ajax devices, offering thousands of possible combinations. It can house up to eight devices simultaneously. Instead of having fixed spaces for each device, they can be attached in any order using special holders. These holders are set up inside the casing, providing engineers with flexibility during installation. Cables can be routed easily, even between devices, and the holders allow for swift removal of any device for replacement or maintenance. The bubble level, tamper, and other elements are standard for all Case versions.