3H140D

Overview

The Astrodyne TDI 3H140D is a three-phase (Delta) EMC/EMI power line filter designed for high-voltage industrial applications. It supports a rated current of 140 A and operates at 480 VAC with frequencies of 50 Hz or 60 Hz. The unit utilizes threaded post terminals, specifically 3/8-16, for secure electrical connections. Certified under UL, CSA, EN, and other standards, it ensures compliance with international electromagnetic interference regulations.

Feature Summary

• Provides effective attenuation of electromagnetic interference in three-phase Delta configurations
• Engineered for robust performance in high-voltage industrial environments
• Features durable threaded post terminal construction for reliable connectivity

Applications

• Industrial machinery power conditioning
• High-voltage facility infrastructure protection
• Commercial equipment EMI suppression

Procurement Notes

Verify the specific datasheet version to confirm exact dimensional tolerances and certification marks required for your region. Ensure the installation environment meets the thermal and voltage ratings specified by the manufacturer. Confirm terminal compatibility with existing busbar systems before procurement.

Selection Notes

Select this model when a three-phase Delta configuration is required for 480VAC systems. The 140A rating suits heavy-duty industrial loads. Verify that the threaded post interface matches the available mounting hardware and circuit design constraints.

Part Context

This component belongs to the 3H series of power filters from Astrodyne TDI. The series focuses on high-performance EMI suppression for demanding industrial and commercial sectors. It complements the manufacturer's broader portfolio of AC/DC converters and isolation solutions.

Replacement Considerations

Check for compatible substitutes within the same 3H series or equivalent high-current Delta filters. Ensure replacement units match the 140A current rating and 480VAC voltage specification to maintain system integrity.