1.2kV 800A ANSI Low Voltage Bushing 30kV BIL
1.2 kV 800 A ANSI low voltage bushing with 30 kV BIL in wet process porcelain. Three connector options, NBR gaskets, copper threaded rod, stainless steel fasteners.
View Details →
- Home
- Products
- Low Voltage Transformer Bushings
- DIN 42539 3kV 250A Transformer Bushing DT3KV-250A
Product Overview
A DIN 42539 low voltage transformer bushing rated 3 kV at 250 A with a 120 mm creepage distance. The assembly is fully specified: porcelain shell, NBR gaskets, copper threaded rod, blued steel spin grip nut, zinc-plated brass connector, and stainless steel lock washer and nut. The DIN 42539 family runs from 250 A up to 6500 A with creepage rising from 120 mm to 140 mm.
- DIN 42539
Why Buyers Choose This Part
- Complete assembly with gaskets, connector and hardware specified by material
- NBR gaskets and stainless steel fasteners for a durable oil seal
- Part of a DIN 42539 family spanning 250 A to 6500 A
- Special lengths and screw sizes made to customer specification
Where It Is Used
- 3 kV low voltage transformer terminals on DIN patterns
- Transformer assembly lines standardising on DIN 42539
- Replacement where the original hardware set is no longer available
- Projects needing several current ratings from one DIN family
Who It Suits
- Transformer manufacturers building to DIN 42539
- Repair shops replacing complete bushing assemblies
- Distributors stocking the DIN 42539 range
What Goes Wrong Without The Right Part
- Bushings supplied without the gaskets and hardware needed to fit them
- Oil leaks at the flange from the wrong gasket material
- Galvanic problems from mismatched connector and fastener metals
- Mixed current ratings across a transformer range needing one supplier
How It Is Built
- DIN 42539 at 3 kV and 250 A
- 120 mm creepage distance
- Porcelain shell
- NBR gaskets
- Copper threaded rod
- Blued steel spin grip nut
- Zinc-plated brass connector
- Stainless steel lock washer and nut
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.
| Creepage Distance | 120 mm |
|---|
Materials
- Electrical porcelain
- NBR gasket
- Copper threaded rod
- Zinc-plated brass connector
- Stainless steel washer and nut
Process
- Forming
- Glazing
- Firing
- Rod machining
- Gasket and hardware assembly
- Routine test
Testing
- Creepage verified against the 120 mm figure
- Gasket seating and seal check
- Thread and connector fit inspection
Certification
- Manufactured to DIN 42539
- ISO 9001 quality management system
Customisation Options
- Special lengths made to customer specification
- Different screw sizes on the threaded rod
- Other DIN 42539 current ratings up to 6500 A
How It Compares
| DIN 42539 3kV 1000A | Creepage steps up from 120 mm to 125 mm and the conductor path is sized for four times the current. Match the bushing to the transformer LV output. |
|---|---|
| DIN 42530 1 kV series | DIN 42530 covers the 1 kV class with creepage from 50 mm. DIN 42539 is the 3 kV family, so the two are not interchangeable. |
Before You Order And After It Arrives
- Order the complete assembly so gaskets and hardware match
- Confirm the threaded rod screw size against your busbar connection
- Replace NBR gaskets whenever the bushing is removed
- Tighten the lock nut against the washer, not against the porcelain
DIN 42539 3kV 250A Transformer Bushing DT3KV-250A Questions
Related Products
Low Voltage Transformer Bushings
DIN 42539 3kV 630A Outdoor Transformer Bushing DT 3/630
Low Voltage Transformer Bushings
- Tank Hole Size 45 mm
- BIL 40 kV
- Creepage Distance 120 mm
DIN 42530 1kV 2000A Transformer Bushing
Low Voltage Transformer Bushings
- Creepage Distance At This Rating 75 mm
- Weight 1.29 kg
- Creepage Distance 50 mm
DIN 42539 3kV 1000A Transformer Bushing
Low Voltage Transformer Bushings
- Creepage Distance 125 mm
EN 50386 1kV 2000A Outdoor Transformer Bushing
- Creepage Distance 75 mm
- Weight 1.29 kg
Related Cases Guides And Applications
DIN EN And ANSI Transformer Bushing Standards Explained
Transformer Bushing Selection A Guide For Engineers
What Is A High Voltage Transformer Insulator
Distribution Transformer Manufacturers
Power Utilities And Substations
Manufacturing To Your Drawing Or Sample
Selecting Creepage For The Pollution At Your Site
Quote For DIN 42539 3kV 250A Transformer Bushing DT3KV-250A
Send the quantity and any drawing you have. Enquiries are answered within 24 hours, and we produce to customer drawings and samples.
Product Photographs
Related Products
EN 50386 1kV 2000A Outdoor Transformer Bushing
EN 50386 outdoor transformer bushing at 1 kV and 2000 A, 75 mm creepage, 1.29 kg. Range covers 250 A to 4000 A. Metal parts, gaskets and porcelain supplied complete.
View Details →DIN 42539 3kV 630A Outdoor Transformer Bushing DT 3/630
DIN 42539 DT 3/630 outdoor transformer bushing, 3 kV at 630 A, 45 mm tank hole, 40 kV BIL, 120 mm creepage, M20 stem connection. Metal parts and gaskets supplied.
View Details →
DIN 42530 1kV 3150A Transformer Bushing DT 1/3150
DIN 42530 DT 1/3150 transformer bushing, 1 kV at 3150 A, 90 mm tank hole, 75 mm creepage, M48 stem connection. Supports, insulates and fixes the LV winding lead.
View Details →Request a Quote
We reply to every enquiry within one business day. Write to us directly by email or WhatsApp — both reach our sales desk immediately.