If you are sourcing high-quality porcelain bushings for transformers that meet DIN standards, here are 10 reputable manufacturers supplying DIN-compliant porcelain bushings — covering LV, MV and HV range, and suitable for global export:
Changsha Rich Machinery and Electric Equipments Co.ltd. — Known for DIN-standard porcelain transformer bushings with robust insulation and mechanical strength, covering 1 kV–36 kV and various current ratings. Also supply BS, IEC,AS standard porcelain bushing.
ABB — Offers DIN42530 / DIN42539 / DIN42531–42534 standard bushings in multiple configurations: wafer type, draw-lead, rod type etc.
Barberi— Supplies DIN-standard porcelain bushings from 1.2 kV up to ~24 kV, with customizable copper or brass conductors and flexible mounting options.
NJREC Group — Provides EN / DIN-standard bushings covering 1 kV to 52 kV and rated currents up to 12,500 A, with multiple creepage-distance and termination options.
Changsha Rich Power — Their high-voltage DIN porcelain bushings (12–52 kV) are designed for power transformers, with versatile copper-rod customizations and strong pollution / environmental resistance.
Webster‑Wilkinson — A European supplier whose DIN-range porcelain bushings (LV / MV / HV) are used worldwide (Europe, Middle East, Far East), with proven reliability and long field history.
Preis Group — Offers LV porcelain bushings in compliance with DIN-42539 / DIN standards, widely used for distribution transformers.
East Ceramic (EastCeramic) — A China-based supplier of porcelain transformer bushings and insulation materials, with capability to supply DIN-standard parts for global clients.
Comem Insulators (or similar regional porcelain-bushing suppliers) — Provide standard-compliant porcelain bushings for LV/MV/HV transformers, with flexible designs and competitive pricing.