Xm is the size of the distribution box

The XM distribution box is a modular low-voltage distribution unit designed for rated currents up to 400A, accommodating multiple 18mm modules and miniature circuit breakers, with flexible installation for indoor and outdoor use.Physical and Modular SizeThe XM series distribution box is designed with a modular structure, allowing it to house various 18mm modules and miniature circuit breakers with 86 sockets, which can be assembled to meet specific power distribution needs . The box typically features a three-part detachable structure consisting of the box bottom, mounting bracket, and box cover, facilitating easy installation and maintenance . It includes zero line (N) and grounding (PE) terminal blocks, and the maximum incoming cable size can reach 16 square millimeters .Electrical SpecificationsRated Voltage: 220V/380V ACRated Current: Up to 400A for industrial models, and ≤100A for indoor lighting distribution boxes Frequency: 50HzSystem Type: Three-phase, four-wire power systems Installation and Environmental ConsiderationsThe XM distribution box can be installed indoors or outdoors, with common methods including surface mounting and recessed mounting . It is suitable for environments with ambient temperatures from -5°C to +40°C, relative humidity up to 90% at +20°C, and altitudes up to 2000 meters . The box is designed to withstand dust, moisture, and corrosion, making it robust for industrial, commercial, and residential applications .SummaryIn practical terms, the size of the XM distribution box is defined by its modular capacity rather than fixed dimensions, allowing customization based on the number of circuit breakers and modules required. Its robust metal cabinet and modular design ensure flexibility, safety, and ease of maintenance, making it suitable for a wide range of electrical distribution applications .