NBH-20-331-D

Overview

The NBH-20-331-D is a power line filter module manufactured by Cosel USA, Inc., designed for AC and DC applications. It supports a maximum current of 20A with voltage ratings up to 250VAC or VDC. The unit features a DIN rail mounting style and operates within an ambient temperature range of -40°C to +85°C. Key electrical specifications include a maximum leakage current of 75 uA and a typical value of 37.5 uA. The physical dimensions are characterized by a length of 85mm and a width of 39mm. This component complies with RoHS3 standards.

Feature Summary

• Provides effective noise suppression for power lines in both AC and DC circuits
• Designed for secure DIN rail mounting to facilitate industrial panel integration
• Operates reliably across a wide industrial temperature range from -40°C to +85°C

Applications

• Industrial automation control panels requiring EMI/RFI filtering
• Power supply input stages for sensitive electronic equipment
• DIN rail mounted distribution systems in commercial infrastructure

Procurement Notes

Verify the specific datasheet version (NBH-20-331-D) against your design requirements before ordering. Confirm that the 20A current rating and 250VAC/VDC voltage limits align with your system's operational parameters. Ensure compatibility with standard DIN rail profiles used in your enclosure. Check for any recent product change notices regarding mechanical dimensions or compliance certifications to guarantee long-term availability and regulatory adherence.

Selection Notes

Select this model when a robust, high-current line filter is needed for DIN rail installation. It is suitable for environments where temperatures fluctuate significantly between -40°C and +85°C. Consider the 75 uA maximum leakage current if strict safety isolation limits apply. Compare physical footprint constraints against the 85mm x 39mm size. Evaluate if the 20A capacity meets the peak load demands of the protected circuit without excessive derating.

Part Context

This component belongs to the NBH series of power line filters from Cosel USA, Inc. The series offers various current ratings and mounting options for different industrial needs. The NBH-20-331-D specifically addresses high-current applications requiring reliable noise filtration on standard DIN rails. It serves as a critical protection element in power distribution networks to ensure signal integrity and equipment safety.

Replacement Considerations

Direct substitutes may include other models within the Cosel NBH series with similar current and voltage ratings, such as NBH-20-322-D, provided mechanical and electrical specifications match exactly. Verify cross-compatibility with existing PCB layouts or terminal connections before substitution.