1.2kV 400A Screw Thread Transformer Bushing
Screw Thread Transformer Bushings
Product Overview
A 1.2 kV low voltage screw thread transformer bushing rated 400 A, sitting within the ANSI low voltage bushing family that runs from 125 A to 1250 A. Bushings in this family are assembled from wet process porcelain with NBR gaskets, a copper threaded rod, a blued steel spin grip nut, a zinc-plated brass connector and stainless steel lock washer and nut, in light grey glaze.
Key benefits
Why Buyers Choose This Part
- 400 A rating within a family that spans 125 A to 1250 A
- Threaded rod connection with eyebolt or flat connector options
- Complete hardware set including NBR gaskets and stainless fasteners
- Wet process porcelain in a light grey glaze
Application scenarios
Where It Is Used
- 1.2 kV low voltage transformer terminals at 400 A
- ANSI pattern LV terminal boards on distribution transformers
- Replacement where the full hardware set is needed
- Transformer builds covering several LV current ratings
Who it is for
Who It Suits
- Distribution transformer manufacturers working to ANSI
- Transformer repair workshops
- Distributors supplying ANSI LV bushings
Problems it solves
What Goes Wrong Without The Right Part
- LV bushings delivered without gaskets or connector hardware
- Connector types that do not suit the cable termination
- Galvanic problems from mismatched fastener metals
- Sourcing an intermediate current rating between catalogue points
Technical features
How It Is Built
- 1.2 kV at 400 A
- Screw thread transformer bushing construction
- Wet process porcelain insulator
- Light grey glaze colour
- NBR gaskets, copper threaded rod, blued steel spin grip nut
- Zinc-plated brass connector, stainless steel lock washer and nut
- ANSI standard family
Materials
Materials
- Wet process porcelain
- Copper threaded rod
- NBR gaskets
- Zinc-plated brass connector
- Stainless steel washer and nut
Manufacturing
Process
- Forming
- Glazing
- Firing
- Rod machining
- Hardware assembly
- Routine electrical test
Quality control
Testing
- Thread gauge check on the copper rod
- Gasket seating inspection
- Glaze colour consistency check
Certifications
Certification
- ANSI standard family
- ISO 9001 quality management system
Customisation
Customisation Options
- Connector size and type selected from the published table
- Current ratings from 125 A to 1250 A
- Customers' own designs accepted
Comparison
How It Compares
| 1.2 kV 800A ANSI bushing | The 800 A version uses a 1 inch connector against the smaller hardware at 400 A. Match the connector to the cable termination. |
|---|---|
| DIN 42530 low voltage bushings | DIN uses metric stem threads from M12 to M48. The ANSI family uses imperial threaded rods with eyebolt and flat connectors. |
Use guide
Before You Order And After It Arrives
- Specify the connector size and type with the order
- Replace NBR gaskets whenever the bushing is removed
- Tighten against the washer, never against the porcelain
- Confirm the exact dimensional figures before a first order
Questions
1.2kV 400A Screw Thread Transformer Bushing Questions
What is the rated voltage and current?
1.2 kV at 400 A.
What hardware comes with it?
NBR gaskets, a copper threaded rod, a blued steel spin grip nut, a zinc-plated brass connector and a stainless steel lock washer and nut.
What glaze colour is used?
Light grey, on a wet process porcelain insulator.
What connector types are available?
The ANSI LV family publishes eyebolt, double eyebolt and flat connectors in sizes from 5/8 inch upward. Tell us your cable termination and we will match it.
Where can I get the full dimensional figures?
The published listing for this exact rating is brief. Ask on WhatsApp and we will send the drawing before you order.
Do you accept customer designs?
Yes, customers' designs are accepted.
Related
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Keep reading
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Quote For 1.2kV 400A Screw Thread Transformer Bushing
Send the quantity and any drawing you have. Enquiries are answered within 24 hours, and we produce to customer drawings and samples.