DIN 42530 1kV 630A Ceramic Bushing DT 1/630

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Product Overview

A DIN 42530 low voltage bushing catalogued as DT 1/630 at 1 kV and 630 A. The published table gives a 45 mm tank hole size, 75 mm creepage and an M20 stem connection. Across the DIN 42530 range the tank hole grows with current, from 45 mm at 630 A to 90 mm at 3150 A, and the stem connection steps from M12 through M20, M30, M42 and M48.

• DIN 42530

Why Buyers Choose This Part

• Tank hole size and stem thread published per current rating
• 45 mm tank hole and M20 stem at the 630 A rating
• 75 mm creepage, the standard figure from 630 A upward
• Part of a table spanning 250 A through 3150 A

Where It Is Used

• 1 kV low voltage transformer terminals at 630 A
• Terminal board design where tank hole size governs
• Replacement matching an existing M20 stem connection
• Transformer builds standardising on DIN 42530

Who It Suits

• Distribution transformer manufacturers
• Design engineers laying out LV terminal boards
• Distributors supplying the DIN 42530 range

What Goes Wrong Without The Right Part

• Bushings ordered without checking the tank hole size
• Stem threads that do not match the busbar connection
• Creepage assumptions carried across from the wrong current rating
• Terminal boards redesigned because the bushing did not fit

How It Is Built

• DIN 42530 DT 1/630 pattern
• 1 kV at 630 A
• 45 mm tank hole size
• 75 mm creepage distance
• M20 stem connection
• Family tank holes: 45 mm at 630 A, 56 mm at 1000 A, 70 mm at 2000 A, 90 mm at 3150 A
• Family stem connections: M12, M20, M30, M42, M48

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
Creepage Distance	75 mm
Weight	0.26 kg

Materials

• Electrical porcelain
• Copper fittings

Process

• Forming
• Glazing
• Firing
• Stem machining and assembly
• Routine electrical test

Testing

• Tank hole and stem thread dimensional check
• Creepage verified against the 75 mm figure
• Conductor path inspection at the 630 A rating

Certification

• Manufactured to DIN 42530
• ISO 9001 quality management system

Customisation Options

• Special lengths or connection types to specification
• Other current ratings in the DIN 42530 range
• OEM and ODM supply

How It Compares

DT 1/250	The 250 A version uses a 60 mm creepage and an M12 stem. Tank hole and stem change with every step in current, so the terminal board has to match.
DT 1/3150	The 3150 A version needs a 90 mm tank hole and an M48 stem at the same 75 mm creepage.

Before You Order And After It Arrives

• Measure the tank hole and match it to the 45 mm figure
• Confirm the M20 stem suits your busbar connection
• Do not assume creepage carries across current ratings
• Order gaskets with the bushing when replacing

DIN 42530 1kV 630A Ceramic Bushing DT 1/630 Questions

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