NBH-20-322

Overview

The Cosel NBH-20-322 is a single-phase, two-stage power line filter designed for AC and DC applications. It supports voltage ratings of 250 VAC and 250 VDC with a continuous current rating of 20 A. The unit features screw termination and chassis mount installation. Key electrical parameters include a maximum leakage current of 0.38 mA (or 0.75 mA depending on configuration) and a capacitance of 3.2 nF. It operates within a frequency range of 10 kHz to 10 MHz. The component weighs 320 g and holds UL, CSA, DIN, VDE, and ENEC compliance certifications.

Feature Summary

• Two-stage filtering architecture for enhanced noise suppression
• Chassis mount design with screw terminal connections
• Certified for international safety standards including UL, CSA, VDE, and ENEC

Applications

• Industrial machinery power conditioning
• Medical equipment EMC protection
• Telecommunications infrastructure filtering

Procurement Notes

Verify the specific datasheet version and certification marks required for your target market before ordering. Confirm that the chassis mounting dimensions and screw terminal specifications match your enclosure design. Ensure the 20 A current rating and 250 VAC/VDC voltage limits are sufficient for your system's peak loads. Check lead times as manufacturing cycles may vary.

Selection Notes

Select this model when a two-stage filter is required for single-phase systems operating at 20 A. Compare against the NBH-20-432 if different attenuation characteristics or capacitance values are needed. Ensure the chassis mount style fits your assembly constraints. Verify that the low leakage current meets sensitive equipment requirements.

Part Context

This component belongs to the Cosel NB series of power line filters. The series offers various current ratings and configurations for single-phase applications. The NBH-20-322 specifically addresses high-current needs with robust chassis mounting capabilities.

Replacement Considerations

The NBH-20-432 is a related model in the same series but may differ in internal component values or attenuation curves. Verify compatibility before substitution.