This document provides specifications for various distribution boxes including dimensions, mounting sizes, and number of ways. Overview The GGD type AC low-voltage distribution panel is a technical development project issued by the former Ministry of Energy in 1992,with the premise of. The XL type low-voltage power distribution cabinet uses domestically designed new components. The enclosure is made of bent steel plates, featuring a compact structure, easy maintenance, and flexible circuit scheme combinations. Besides air circuit breakers and fuses for circuit protection, the. AITAF provides end‑to‑end optical communication solutions, structured cabling, ODN, optical modules, fiber testing instruments, data center networks, base station energy, smart city communications. C, based in Dubai, United Arab Emirates, we are a leading supplier and distributor of a comprehensive range of domestic, commercial, and industrial appliances, equipment, devices. A distribution box is a low-voltage electrical enclosure that receives incoming power and distributes it safely to multiple outgoing circuits through protective and switching devices such as MCBs, RCDs, RCBOs, fuses, isolators, busbars, neutral bars, earth bars, and surge protective devices. The. Wiring diagram shows both PNP and NPN wiring. Dimensions are shown in mm (in.