3H140D F

Overview

The Astrodyne TDI 3H140D F is a three-phase delta power line filter module designed for high-voltage industrial applications. It features a two-stage filtering architecture to ensure effective electromagnetic interference suppression. The unit is rated for a continuous current of 140 A and operates at voltages up to 480 VAC within the 50/60 Hz frequency range. Construction utilizes threaded posts (3/8-16) for secure mounting, providing robust performance in demanding electrical environments.

Feature Summary

• Two-stage filtering architecture for enhanced noise attenuation
• High-current capacity suitable for heavy-duty industrial loads
• Threaded post termination for reliable mechanical connection

Applications

• Industrial motor drives and control systems
• Medical imaging equipment requiring stable power quality
• Semiconductor manufacturing machinery

Procurement Notes

Verify that the specific application voltage does not exceed the 480 VAC rating and that the load current remains within the 140 A limit. Confirm compatibility with the 3/8-16 threaded post mounting style before integration. Ensure the system operates within the standard 50/60 Hz frequency range to maintain specified filtering performance and safety certifications.

Selection Notes

Select this model when high current handling and two-stage attenuation are required for three-phase delta systems. It is appropriate for environments where space constraints favor modular designs over bulkier chassis mounts. Consider the thermal management capabilities of the installation site, as high-current filters generate heat during operation.

Part Context

This component belongs to the 3H series of power line filter modules from Astrodyne TDI. The series is engineered for high-performance EMI/EMI suppression in critical infrastructure. The 3H140D F variant specifically addresses the needs of high-power three-phase applications, distinguishing itself from single-phase or lower-current alternatives in the same product family.

Replacement Considerations

Direct substitutes must match the 140 A current rating, 480 VAC voltage rating, and three-phase delta configuration. Verify that any replacement maintains the two-stage filtering topology and compatible 3/8-16 threaded post connections to ensure seamless integration without redesigning the mounting hardware.