NBM-30-331

Overview

The NBM-30-331 is a single-phase EMC/EMI line filter module manufactured by Cosel USA, Inc. It features a two-stage filtering design intended for AC power lines up to 250VAC and DC lines up to 250VDC. The unit supports a continuous current rating of 30A and utilizes a terminal block connection method. This component is designed to suppress electromagnetic interference in electrical systems requiring robust noise reduction capabilities.

Feature Summary

• Two-stage EMI/EMC filtering architecture
• Terminal block connection interface
• Single-phase power line compatibility

Applications

• Industrial machinery power input stages
• Medical equipment noise suppression
• Commercial HVAC control panels

Procurement Notes

Verify the specific suffix designation against official Cosel documentation to ensure correct leakage current and attenuation specifications. Confirm that the terminal block configuration matches the installation requirements. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and current production status before finalizing procurement orders.

Selection Notes

Select this model when a 30A capacity is required for single-phase applications. Ensure the operating voltage does not exceed 250VAC or 250VDC. Verify that the terminal block mounting style fits the available panel space. Compare leakage current limits against safety standards if used in sensitive medical or personnel-contact environments.

Part Context

This component belongs to the NBM series of power line filters from Cosel. The series includes variants with different current ratings and filtering characteristics. The NBM-30-331 specifically denotes the 30A rating within this product family, sharing common form factors and mounting styles with other models in the same series.

Replacement Considerations

Direct substitutes include NBM-30-221 and NBM-30-471 from the same manufacturer. These alternatives share the same physical footprint and current rating but differ in internal filtering components. Verify electrical performance curves to ensure compatibility with specific noise profiles.