849-20/004

Overview

The Qualtek 849-20/004 is a single-phase EMC/EMI line filter module designed for chassis mounting. It features a two-stage configuration suitable for applications where equipment impedance at RF frequencies is low. The unit supports voltage ratings of 115V to 250VAC and operates at frequencies of 50Hz or 60Hz. It has a current rating ranging from 16A to 20A, with leakage current specifications between 0.45mA and 0.90mA. The operating temperature range extends from -25°C to 85°C.

Feature Summary

• Two-stage filtering architecture optimized for low RF impedance environments
• Quick connect terminal interface for simplified installation
• Chassis mount design for secure integration into equipment enclosures

Applications

• General purpose electronic equipment requiring EMI suppression
• Industrial control systems with low RF impedance loads
• Medical devices requiring certified EMC protection

Procurement Notes

Verify that the specific application environment falls within the -25°C to 85°C operating temperature range. Confirm that the system's RF impedance characteristics align with the filter's design intent for low impedance scenarios. Ensure the input voltage matches the 115V to 250VAC rating and that the current demand does not exceed the 20A maximum. Check for required safety certifications such as CSA, UR, or VDE depending on regional compliance needs.

Selection Notes

Select this component when a two-stage filter is necessary for equipment exhibiting low impedance at radio frequencies. Compare against other Qualtek series filters if higher current ratings or different mounting styles are required. Consider the physical dimensions for chassis mounting space availability. Evaluate the quick connect terminals against available wiring harnesses to ensure compatibility without additional adapters.

Part Context

This component belongs to the Qualtek 849 Series of power line filter modules. These filters are engineered to provide electromagnetic interference suppression in single-phase AC power lines. The series is characterized by its robust construction and suitability for industrial and commercial applications where strict EMC compliance is mandatory.

Replacement Considerations

Consult official Qualtek documentation for direct cross-references. Verify that any substitute part maintains the same two-stage topology and current/voltage ratings. Ensure mechanical mounting dimensions and terminal types are compatible with existing assembly designs.