NAH-20-471

Power Line Filter Modules Overview

The Cosel NAH-20-471 is a single-phase power line filter module designed for electromagnetic compatibility (EMC) and electromagnetic interference (EMI) suppression. It features a chassis mount configuration with terminal block connections, supporting a rated current of 20A and operating voltages up to 250VAC/VDC. The component utilizes a single-stage filtering architecture to attenuate conducted noise on AC/DC power lines.

Power Line Filter Modules Feature Summary

• Provides single-stage EMI/EMC noise attenuation for power lines
• Supports chassis mounting for secure installation
• Utilizes terminal block connection method

Power Line Filter Modules Applications

• Industrial equipment power input stages
• Medical device power supplies
• Commercial machinery EMC compliance

Power Line Filter Modules Procurement Notes

Verify the specific suffix designation when ordering, as variants such as NAH-20-471-D exist with different mounting styles like DIN rail. Confirm that the required termination type matches the chassis mount specification of the base model. Ensure the application voltage does not exceed the 250VAC/VDC rating. Cross-reference the manufacturer's official documentation for precise mechanical dimensions and thermal derating curves before finalizing the design.

Power Line Filter Modules Selection Notes

Select this component when a 20A capacity is required for single-phase applications. Compare against the NAH-20-472 variant if a DIN rail mount is preferred over chassis mounting. Evaluate the NAH-20-471-D option if a hybrid or alternative mounting solution is needed. Ensure the system's noise profile aligns with the single-stage filtering capabilities provided by this specific series.

Power Line Filter Modules Part Context

This part belongs to the Cosel NAH series of power line filters. The series offers various current ratings and mounting options, including chassis and DIN rail configurations. The NAH-20-471 specifically addresses high-current requirements within the 20A class, providing a standardized solution for industrial EMC needs alongside other models in the lineup.

Power Line Filter Modules Replacement Considerations

The NAH-20-472 serves as a direct functional substitute with identical electrical specifications but differs in mounting style, offering a DIN rail option instead of chassis mount. Verify mechanical fitment constraints before swapping between these two variants.