DIN 42530 1kV 3150A Transformer Bushing DT 1/3150
Low Voltage Transformer Bushings
Product Overview
The largest bushing in the DIN 42530 1 kV table, catalogued as DT 1/3150 at 3150 A. It needs a 90 mm tank hole and uses an M48 stem connection at 75 mm creepage. Its job on the transformer is threefold: it supports and fixes the winding so its position stays stable, it isolates the winding from the tank and other metal parts to prevent leakage current, and it resists moisture and fouling.
- DIN 42530
Key benefits
Why Buyers Choose This Part
- 3150 A rating, the top of the DIN 42530 1 kV table
- M48 stem connection sized for heavy busbar terminations
- 90 mm tank hole published so the terminal board can be checked
- Moisture-proof and anti-fouling surface behaviour
Application scenarios
Where It Is Used
- High output low voltage terminals on power transformers
- Terminal boards designed around a 90 mm tank hole
- Heavy busbar connections needing an M48 stem
- Transformer builds standardising on DIN 42530
Who it is for
Who It Suits
- Power and distribution transformer manufacturers
- Design engineers laying out high current LV terminals
- Distributors stocking the full DIN 42530 range
Problems it solves
What Goes Wrong Without The Right Part
- Terminal heating at very high LV output currents
- Tank holes cut before the bushing size was confirmed
- Winding leads that move because the bushing does not fix them
- Leakage current between the winding and the tank
Technical features
How It Is Built
- DIN 42530 DT 1/3150 pattern
- 1 kV at 3150 A
- 90 mm tank hole size
- 75 mm creepage distance
- M48 stem connection
- Supports and fixes the transformer winding
- Isolates the winding from the tank and other metal parts
- Moisture-proof and anti-fouling
Specifications
Published Figures For This Product
Every value below comes from the manufacturer data for this item. Figures not listed are confirmed against the drawing before an order is placed.
| Tank Hole Size | 90 mm |
|---|---|
| Creepage Distance | 75 mm |
Materials
Materials
- Electrical porcelain
- Copper fittings
Manufacturing
Process
- Forming
- Glazing
- Firing
- Stem machining and assembly
- Routine electrical test
Quality control
Testing
- Tank hole and M48 stem dimensional check
- Creepage verified at 75 mm
- Conductor path inspection at the 3150 A rating
Certifications
Certification
- Manufactured to DIN 42530
- ISO 9001 quality management system
Customisation
Customisation Options
- Special lengths or connection types to specification
- Other ratings from 250 A upward
- Bushings also made to DIN 42539, 42531, 52432, 42533 and 42534
Comparison
How It Compares
| DT 1/2000 | The 2000 A version uses a 70 mm tank hole and an M42 stem at the same 75 mm creepage. Every step in current changes the tank hole and stem. |
|---|---|
| EN 50386 1/4000 A | The EN range extends past 3150 A to 4000 A with 85 mm creepage. Use EN where the specification calls for it and the current is higher. |
Use guide
Before You Order And After It Arrives
- Confirm the tank hole is 90 mm before ordering
- Size the busbar termination for the M48 stem
- Keep the winding lead fixed as the bushing is designed to do
- Check the seal at every transformer service
Questions
DIN 42530 1kV 3150A Transformer Bushing DT 1/3150 Questions
What tank hole does the DT 1/3150 need?
90 mm.
What stem connection does it use?
M48. Across the range the stem steps M12 at 250 A, M20 at 630 A, M30 at 1000 A, M42 at 2000 A and M48 at 3150 A.
What is the creepage distance?
75 mm.
What does the bushing actually do in the transformer?
It supports and fixes the winding so its position stays stable, isolates the winding from the tank and other metal parts to prevent leakage current, and resists moisture and fouling.
Which DIN standards do you manufacture to?
DIN 42530, 42539, 42531, 52432, 42533 and 42534.
Is a higher current rating available?
In the EN 50386 range, yes, up to 4000 A with 85 mm creepage.
Related
Related Products
DIN 42539 3kV 630A Outdoor Transformer Bushing DT 3/630
- Tank Hole Size 45 mm
- BIL 40 kV
- Creepage Distance 120 mm
DIN 42530 1kV 2000A Transformer Bushing
- Creepage Distance At This Rating 75 mm
- Weight 1.29 kg
- Creepage Distance 50 mm
DIN 42539 3kV 1000A Transformer Bushing
- Creepage Distance 125 mm
EN 50386 1kV 2000A Outdoor Transformer Bushing
- Creepage Distance 75 mm
- Weight 1.29 kg
Quote For DIN 42530 1kV 3150A Transformer Bushing DT 1/3150
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