In the realm of low-voltage electrical distribution, the U series represents a versatile family of modular distribution boards and enclosures designed for efficient power management in commercial and industrial installations. Setup of the distribution board is based on a 3-step principle (wall pan / mounting insert + DIN frame + door) Complete types incl. neutral and protective-earth screw type conductor terminals 33 1MU devices / row. What Is a Distribution Board? What Is a Distribution Box? Quick Decision: Which One Do You Need? Are Distribution Board and Distribution Box the Same?Our flexible distribution boxes enable reliable, decentralised signal transmission and power transmission up to protection class IP67 – wherever passive distribution boxes are required. High-quality materials and robust product designs ensure a reliable connection, signal transmission and power. 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.