This portable, temporary industrial socket box is designed for construction sites. Enhanced Protection Ratings: Products with IP65, IP67, and IP44 ratings are becoming standard for dust/water resistance. Integrated Safety Components: Built-in MCBs. BLOCK Series distribution assemblies are made of thermoplastiqc material DOMINO and feature the same versatility and performance as the DOMINO Series. Fiberglass box, polyester enclosure, polyester cabinet,polyester box with internal door. Shanghai Zhonghan Electric Co. Since its inception, the company has always adhered to the business philosophy of "Innovation. This article explains how temporary construction power boxes work, the key components involved, and how E-abel portable electrical enclosures combined with industrial connector systems enable efficient, safe, and scalable power distribution for construction projects.