DIN 42539 3kV 630A Outdoor Transformer Bushing DT 3/630
Low Voltage Transformer Bushings
Product Overview
An outdoor low voltage transformer bushing to DIN 42539, catalogued as DT 3/630 at 3 kV and 630 A. The published table gives a 45 mm tank hole size, 40 kV BIL, 14 kV power frequency dry and 10 kV wet withstand, 120 mm creepage and an M20 stem connection. Bushings in this range are manufactured to DIN 42530, 42539, 42531, 52432, 42533 and 42534, with metal parts, gaskets and porcelain supplied as a set.
- DIN 42530
- DIN 42539
Key benefits
Why Buyers Choose This Part
- Tank hole size published at 45 mm so the terminal board is checked before order
- M20 stem connection stated on the catalogue line
- 120 mm creepage suited to outdoor low voltage terminals
- Made across six DIN bushing standards so one supplier covers the transformer
Application scenarios
Where It Is Used
- Outdoor low voltage transformer terminals at 3 kV and 630 A
- Transformer builds using DIN LV terminal boards
- Replacement where tank hole size constrains the choice
- Plants standardising across the DIN bushing standards
Who it is for
Who It Suits
- Transformer manufacturers building outdoor units
- Repair shops matching an existing tank hole
- Distributors supplying the DIN 42539 range
Problems it solves
What Goes Wrong Without The Right Part
- Bushings that will not fit the existing tank hole
- Indoor-rated LV bushings fitted on outdoor tanks
- Stem connections that do not match the busbar thread
- Selecting current ratings across the DIN 42539 family without a table
Technical features
How It Is Built
- DIN 42539 DT 3/630 pattern
- 3 kV rating at 630 A
- 45 mm tank hole size
- 40 kV BIL
- 14 kV power frequency dry and 10 kV wet withstand voltage
- 120 mm creepage distance
- M20 stem connection
- Outdoor transformer bushing construction
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 | 45 mm |
|---|---|
| BIL | 40 kV |
| Creepage Distance | 120 mm |
Materials
Materials
- Electrical porcelain
- Metal parts and gaskets
Manufacturing
Process
- Forming
- Glazing
- Firing
- Gasket and metal part assembly
- Routine electrical test
Quality control
Testing
- Tank hole and stem thread dimensional check
- Power frequency dry and wet withstand testing
- Creepage verification against the 120 mm figure
Certifications
Certification
- Manufactured to DIN 42539
- ISO 9001 quality management system
Customisation
Customisation Options
- Special lengths and different screw sizes to customer specification
- Other DIN 42539 ratings from 3/250 upward
- Metal parts, gaskets and porcelain supplied as a set
Comparison
How It Compares
| DT 3/250 | The 250 A version uses a smaller 39 mm tank hole and an M12 stem connection at the same 120 mm creepage. Check the tank hole before substituting. |
|---|---|
| DT 3/1000 | The 1000 A version moves to a 56 mm tank hole and 125 mm creepage. Each step in current changes the tank hole, so the terminal board has to match. |
Use guide
Before You Order And After It Arrives
- Measure the tank hole and match it against the 45 mm figure
- Confirm the M20 stem connection suits your busbar
- Order the full set including gaskets when replacing a bushing
- Use the outdoor version only, indoor types are a separate construction
Questions
DIN 42539 3kV 630A Outdoor Transformer Bushing DT 3/630 Questions
What tank hole size does the DT 3/630 need?
45 mm. The DT 3/250 uses 39 mm and the DT 3/1000 uses 56 mm, so the tank hole changes with the current rating.
What stem connection does it use?
M20. The DT 3/250 uses M12.
What are the withstand figures?
40 kV BIL, 14 kV power frequency dry and 10 kV wet.
What is the creepage distance?
120 mm.
Which DIN standards do you manufacture to?
DIN 42530, 42539, 42531, 52432, 42533 and 42534.
Is this an indoor or outdoor bushing?
Outdoor. Low voltage transformer bushings are divided into indoor and outdoor types, and this is the outdoor construction.
Related
Related Products
DIN 42530 1kV 630A Ceramic Bushing DT 1/630
- Tank Hole Size 45 mm
- Creepage Distance 75 mm
- Weight 0.26 kg
DIN 42530 1kV 3150A Transformer Bushing DT 1/3150
- Tank Hole Size 90 mm
- Creepage Distance 75 mm
1.2kV 800A ANSI Low Voltage Bushing 30kV BIL
- Rated Voltage 1.2 kV
- BIL 30 kV
GB B-1/315 Transformer Bushing Insulator 1kV
- Voltage 1 kV
- Height 105 mm
- Diameter 65 mm
Keep reading
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DIN EN And ANSI Transformer Bushing Standards Explained
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Quote For DIN 42539 3kV 630A Outdoor Transformer Bushing DT 3/630
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