3BH45D

Overview

The Astrodyne TDI 3BH45D is a three-phase (Delta) EMC/EMI power line filter module designed for high-voltage industrial applications. It supports a rated current of 45 A and operates at voltages up to 480 VAC with frequencies of 50 Hz or 60 Hz. The unit utilizes a single-stage filtering architecture and features threaded post terminals, specifically 10-32 threads, for secure electrical connections. Constructed for chassis mounting, the filter ensures compliance with RoHS standards and maintains lead-free specifications. Its design facilitates effective noise suppression in demanding power conditioning environments while adhering to strict safety and environmental regulations.

Feature Summary

• Provides three-phase Delta configuration for robust electromagnetic interference suppression
• Utilizes threaded post terminal connections for reliable mechanical and electrical integration
• Engineered for chassis mounting to ensure stable installation in industrial enclosures

Applications

• Industrial power distribution systems requiring EMI/EMC protection
• High-voltage machinery interfacing with sensitive electronic controls
• Power conditioning units within manufacturing automation infrastructure

Procurement Notes

Verify that the specific variant matches the required Delta configuration and voltage rating for your application. Confirm terminal compatibility with existing wiring harnesses, as this model uses threaded posts rather than standard plug-in connectors. Ensure the chassis mounting provisions align with your enclosure design constraints. Check for any specific regional compliance certifications required for your deployment location before finalizing procurement.

Selection Notes

Select this component when a three-phase Delta topology is explicitly required for noise filtration. The 45 A current rating suits moderate-to-high power industrial loads. Consider the physical dimensions and mounting style during the initial design phase. Evaluate the need for low-leakage characteristics if connected to sensitive medical or precision instrumentation equipment. Compare against single-phase alternatives if system architecture allows for phase reduction.

Part Context

This component belongs to the 3BH series of power line filters from Astrodyne TDI. The series is characterized by high-performance EMC/EMI suppression capabilities tailored for industrial and commercial power applications. These filters are engineered to meet stringent international standards for electromagnetic compatibility, ensuring minimal signal distortion and enhanced system reliability in electrically noisy environments.

Replacement Considerations

Direct substitutes include the 3BH45D F variant, which shares identical electrical specifications but may differ in flange or packaging details. Verify that any replacement maintains the same Delta configuration and 45 A current handling capacity. Ensure terminal thread specifications match exactly to avoid mechanical adaptation issues.