ANSI Transformer Bushings 1.2kV~34.5kV Complete Range (125A~4000A · About 120 Models · Factory Direct from XD)

ANSI Transformer Bushings · 1.2kV~34.5kV · Full Model Range 125A~4000A

Product Overview
XD Electric specializes in transformer bushings. The ANSI series covers seven voltage classes — 1.2kV, 5kV, 10kV, 15kV, 18kV, 25kV and 34.5kV — across the full current range from 55A to 4000A, with approximately 120 models in production, all designed to the ANSI/IEEE interface system. High-strength electrical porcelain insulators, copper/aluminum hardware assemblies, and a complete set of accessories including the American flower basket, aluminum clamp, protective cover and earthing terminal. Top-terminal options span stud, 1-hole, 2-hole, 4-hole, 6-hole, 8-hole and 10-hole flat pads; shed counts from 4 to 17; both draw-lead and general-purpose constructions are available, and the bushings directly replace same-specification ANSI bushings on the market. The model tables below are grouped by voltage class; dimensions in mm; creepage is the minimum creepage distance.

1. 1.2kV Class · 125A~250A (Low-Current General Purpose)

2. 1.2kV Class · 417A~1200A (Medium Current)

3. 1.2kV Class · 1400A~3150A (High-Current Flat-Pad Terminals)

4. 5kV Class · 630A~4000A

5. 10kV Class · 800A~2000A

6. 15~34.5kV Class · 55A (Draw-Lead, Shielded, 4~17 Sheds)

Note: same models also come in 1-hole / 2-hole (top-nut clamping) variants — 14 rows in total, with identical shed counts and creepage; 8.7 and 13 denote two conductor-rod diameters, distinguished by the -13K code suffix; protective cover and earthing terminal optional.

7. 15~25kV Class · 125A~600A (6~7 Shed General Purpose)

8. 15~34.5kV Class · 125A~417A / 125A~600A (High-Shed, Long-Creepage Types)

Note: this group is condensed by voltage/shed count — each row contains 3~4 concrete ratings (125A / 250A / 417A, up to 600A). Full row-by-row dimensions and codes are given on catalog pages 46–47.

Construction Options & Accessories

• Top terminals: stud, 1-hole, 2-hole, 4-hole, 6-hole, 8-hole and 10-hole flat pads — covering every lead connection style from 55A to 4000A;
• Draw-lead construction: 15~34.5kV 55A series, shielded, with two conductor-rod diameters (8.7 / 13);
• Shed counts: 4 to 17 sheds, creepage 25~1114mm, selected by pollution level and installation space;
• Accessories: American flower basket, aluminum clamp, ANSI spin-grip nut, protective cover, earthing terminal;
• Tank openings: standard tank-opening diameters per current class (ø36.5 / ø71 / ø101.6 / ø140 / ø150 etc.), opening drawings supplied with selection.

Why Choose XD?
XD Electric has specialized in transformer bushings for years, offering complete ANSI, IEC/EN and DIN standard systems. Approximately 120 ANSI models are produced from existing molds for stable lead times; non-standard dimensions and special shed designs can be customized to customer drawings, matching the mounting interfaces of mainstream transformer manufacturers. Factory-direct supply with competitive volume pricing — contact us for the complete dimension drawings and a quotation.