NBH-20-681-D

Overview

The NBH-20-681-D is a single-phase EMC/EMI line filter module manufactured by Cosel USA, Inc. It features a two-stage filtering configuration designed for DIN rail mounting. The unit supports a rated current of 20 A and operates with a voltage rating of 250 VAC/VDC. This component serves as a power line filter to mitigate electromagnetic interference in electrical circuits.

Feature Summary

• Two-stage filtering architecture for enhanced noise suppression
• DIN rail mounting configuration for standardized installation
• Single-phase design for AC/DC power line applications

Applications

• Industrial control systems requiring EMI mitigation
• Power supply input stages for noise reduction
• Electrical cabinets needing DIN rail integration

Procurement Notes

Verify the exact part number NBH-20-681-D against manufacturer documentation to confirm specifications. Ensure compatibility with system voltage ratings of 250 VAC/VDC and current requirements of 20 A. Check for RoHS compliance status and environmental certifications relevant to your deployment region before procurement.

Selection Notes

Select this model when a two-stage EMI filter is required for single-phase lines. Confirm that the 20 A current rating meets load demands. Verify that DIN rail mounting fits the enclosure design. Compare performance against single-stage alternatives if space or attenuation requirements differ.

Part Context

This component belongs to the NBH-20 series of power line filter modules from Cosel USA, Inc. The series offers various configurations for different current and voltage ratings. The NBH-20-681-D specifically denotes the 20 A variant with two-stage filtering capabilities within this product family.

Replacement Considerations

Consult official substitution lists for compatible parts. Verify that any alternative maintains the 20 A rating, 250 VAC/VDC specification, and two-stage topology. Ensure mechanical dimensions match the existing DIN rail setup.