This document provides specifications for various distribution boxes including dimensions, mounting sizes, and number of ways. Contextual Info: XPDR/DME TCAS/ADS-B/TIS Test Set IFR 6000 Operation Manual Issue 7 EXPORT CONTROL WARNING: This document contains controlled technology or technical data under the jurisdiction of the Export Administration Regulations EAR, 15 CFR 730-774. It cannot be transferred to any foreign. Tongda Distribution is a rapid expanding global organisation based in the UK, Belgium and Poland to provide fully managed logistics solutions, ranging in warehouse & distribution, Ocean, Air, Road and Rail. The enclosure is made of bent steel plates, featuring a compact structure, easy maintenance, and flexible circuit scheme combinations. Choose the right box based on environment (indoor/outdoor), load capacity, and durability. Check for proper IP/NEMA ratings and material quality. Ensure safe placement: install in. 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.