DIN Transformer Bushing Full Range: 5 Series, 42 Models Covering 1~52kV and 250~4500A

Product Overview

This page summarizes Xingda's full range of transformer bushings manufactured to the DIN (German) standard system — five series, 42 standard models covering 1~52kV and 250~4500A. All are brown-glazed porcelain with single or multiple sheds, supplied complete with 10×10 square-steel mounting and tank-cover opening fittings.

Model designation is straightforward: DIN – voltage / current — e.g. DIN-24/2000 is the 24kV / 2000A bushing. Suffix rules: the three reinforced-creepage 36kV variants are marked .A / .B / .C; threaded-connection types carry the suffix .1; internal codes follow XD.current.voltage.DIN. Voltage, current and construction type — three parameters fix the model.

The five series fall into three construction groups: ① LV outlet bushings (1~3kV in 250~630A and 1000~4500A steps); ② cable-through bushings (12~36kV, 250~630A, cable passing through the central tube); ③ threaded-connection and high-current MV bushings (12~36kV 250~630A threaded type, and 12~52kV 1000~3150A high-current type).

Models & Specifications

Table 1 | 1~3kV LV outlet bushings (250~630A, single shed, 10×10 square-steel mounting)

Table 2 | 1~3kV high-current LV bushings (1000~4500A, single shed, flat terminal pads)

※ 1000A terminal: 2-Φ4 holes; 2000A and above: 4-Φ4 holes. Terminal-pad sizes a3×a4 / a1×a2 as per catalog drawing. d3 of DIN-3/4500 is blank in the original catalog.

Table 3 | 12~36kV cable-through bushings (250~630A, cable passing through the central tube)

※ Φd2 = tail anchor-thread diameter. Cover flanges: d0=78 with Φ122 flange / 4-M10 (Φ58 PCD); d0=92 with Φ160 flange / 4-M16 (Φ90 PCD). .A/.B/.C are three reinforced-creepage shed options for 36kV (996 / 1116 / 1207 mm).

Table 4 | 12~36kV threaded-connection bushings (250~630A, suffix .1)

Table 5 | 12~52kV high-current bushings (1000~3150A, 2~6 sheds, creepage up to 950 mm)

※ DIN-12/1000: cover opening d0=115 (Φ180 flange, 6-M12); all other steps d0=135 (Φ200 flange, 8-M12, Φ70 PCD). Columns E and C are blank for the 52kV models in the original catalog.

Mounting & Fittings

LV series (Tables 1–2) is located in the tank-cover opening by a 10×10 square steel bar: openings of Φd0 = 28~45 mm for small-current steps and 56~119 mm for high-current steps. High-current models use flat terminal pads (2-Φ4 holes for 1000A, 4-Φ4 for 2000A and above), pad sizes from 60×60 up to 150×150, with threads rising from M30×2 to M50×3 with the current rating.

Cable-through bushings (Table 3): the cable passes through the central tube and the outdoor terminal leads off to the side. Threaded-connection types (Table 4, suffix .1) clamp the lead directly by the top thread. High-current MV bushings (Table 5) use two cover openings Φ115 / Φ135 with flanges Φ180 / Φ200, fixed by 6-M12 or 8-M12 bolts (Φ70 PCD).

Typical Applications

Why Xingda

The DIN series is fully manufactured by Tianjin Xingda. Tooling for all five series and 42 standard models is in place and supply is stable; listed dimensions refer to standard products, and non-standard sheds, extended heights and special openings can be customized to customer drawings. The same factory supplies DIN, ANSI, NBR Brazilian and GB bushing lines, so a transformer manufacturer can equip both export and domestic units from a single purchase. Every bushing is delivered with sealing and mounting fittings, ready to assemble on the tank cover.