This series of voltage transformers are crafted with epoxy resin, offering semi-closed, fully insulated products. The core is made from high-quality cold-rolled silicon steel sheets. Insulation by epoxy resin ensures the transformers are compact, lightweight, and space-efficient.

The winding, fully cast in epoxy resin, boasts excellent insulation, impact resistance, and mechanical stress protection, safeguarding it from moisture. The primary winding terminals are marked A and B; the secondary winding terminals are marked a and n. A clear note on the casting body aids in identification. A grounding sign is adjacent to the grounding bolt, while the lower bracket supports the compact structure, enhancing usability.