NAM-04-221

Power Line Filter Modules Overview

The NAM-04-221 is a single-phase power line filter manufactured by Cosel USA, Inc. It features a low leakage current design with a maximum rating of 25 uA. The component supports an AC voltage of 250 VAC and a DC voltage of 250 VDC. It has a continuous current rating of 4 A. The unit utilizes a chassis mount installation style with screw termination type. The internal capacitance value is specified as 220 pF. This filter belongs to the NA series and is classified under power condition sub-categories.

Power Line Filter Modules Feature Summary

• Low leakage current capability for sensitive applications
• Single-phase EMC/EMI filtering configuration
• Chassis mount construction for secure integration

Power Line Filter Modules Applications

• Industrial control systems requiring low leakage
• Medical equipment power supplies
• Precision measurement instrumentation

Power Line Filter Modules Procurement Notes

Verify the specific datasheet version for the NAM-04-221 to confirm compliance with current safety standards such as VDE certifications. Ensure that the chassis mounting requirements align with the mechanical constraints of the target enclosure. Confirm that the 4 A current rating and 250 VAC/VDC voltage limits are sufficient for the intended circuit operation before finalizing procurement orders.

Power Line Filter Modules Selection Notes

Select this model when low leakage current is critical for system safety or signal integrity. The 4 A rating suits moderate power loads. Compare against the NAM-30-221 if higher current capacity is needed. Consider the NBM-30-221 variant if push-down terminal connections are preferred over screw terminals. Verify space availability for chassis mounting.

Power Line Filter Modules Part Context

This component is part of the Cosel NA series power line filters. The series includes variants like the NAM-30-221 which offers higher current handling. The NAM-04-221 specifically addresses applications needing lower current ratings with strict leakage current limitations. It serves as a fundamental EMI suppression module for single-phase AC and DC power inputs in regulated environments.

Power Line Filter Modules Replacement Considerations

The NAM-04-221-D is a DIN rail mounted alternative within the same series offering similar electrical specifications but different physical mounting. For direct replacement, ensure the new component matches the 4 A current and 250 VAC/VDC voltage ratings. Verify that the chassis mount footprint and screw terminal spacing are compatible with existing hardware.