The top distribution box manufacturers in 2025 are SENTOP, Schneider Electric, Rockwell Automation, Hammond Manufacturing, Laiwo Electrical, J&HW Group, Siemens, ABB, Eaton, Legrand, and General Electric. These companies make rules for safety and performance. ELKRAFT® stands for power distributors – power distributors on construction sites. More than 100 years of experience in the development and manufacture of protection systems guarantee a reliable and cost-effective solution for your requirements. Our power distributors offer many different options. The 68 ACS range is composed of an extensive selection of wired boards which are certified in accordance with the Standard EN 61439-4, and are capable of meeting all electrification requirements, from the smallest to the biggest construction sites. The robust sheet steel housing has been developed especially for use outdoors and is extremely stable thanks to high material thicknesses. What are the types of construction power distribution boxes? The type and scope of electrical equipment on construction sites is geared to the size and particular circumstances of each site. The robust sheet steel housing has been. BLOCK Series distribution assemblies are made of thermoplastiqc material.