With their optimised dimensions and modularity, XL³ 125 enclosures allow a distribution up to 125 A, thanks to a capacity of 18 modules per row, covering from 1 to 4 rows. 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. Our goal? Make sure you never notice it. Before we dive into calculations, let's get familiar with a few essentials: 1. Your Project's Total Power Demand This isn't just adding up. ontrol and circuit protection. As well as purely technical factors (intensity, number of outputs, etc. ), the choice of a distribution system is critical regarding implementation, maintenance, operating requirements and poss bility of evolving the panels. These boxes house various circuit breakers. The distribution box (DB box) helps safely and efficiently distribute electrical power. Only few catalogue numbers of fixing kits for XL3-N 250 cabinets are and multiple enough to cover all the professional's needs in terms of circuit breakers: MCBs up to 63 A a y: the bus ribution box. Insulated earth available t knockouts.