FN5045-660-99 Equivalent & Substitute Parts

Part Overview

The FN5045-660-99 is a three-phase delta EMC/EMI line filter rated for 660 A AC operation with chassis mount configuration and terminal block termination. This component is designed for regenerative motor drive applications requiring single-stage filtering. The part is currently obsolete, making identification of suitable substitute components necessary for system maintenance and new designs requiring equivalent filtering performance.

Substiute Parts

FN5045-660-99

Schaffner EMC Inc.In Stock: 670FN5045-660-99 Datasheet

Current PartRFQ

FN5420-710-99-E0XXT

Schaffner EMC Inc.In Stock: 784FN5420-710-99-E0XXT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FN5045-660-99 is based on the following critical parameters that must be maintained or exceeded:

• Filter Type: Three Phase (Delta) configuration required
• Configuration: Single Stage filtering architecture
• Mounting Type: Chassis Mount form factor
• Termination Style: Terminal Block connection method
• Current Rating: Minimum 660 A capacity
• Application Compatibility: Regenerative motor drive suitability
• Approval Certifications: Compliance with required regulatory standards

The FN5420-710-99-E0XXT meets these substitution criteria as an active product from the same manufacturer with enhanced specifications and broader regulatory approval.

Parameter Comparison

Engineering Selection Recommendations

The FN5420-710-99-E0XXT is the manufacturer-recommended substitute for the obsolete FN5045-660-99. Selection of this substitute is based on:

• Product Status: The substitute is an active product with ongoing manufacturer support, whereas the original part is obsolete
• Current Capacity: The substitute provides 710 A rating, exceeding the original 660 A requirement
• Regulatory Compliance: The substitute holds CE, cURus, and UKCA certifications, providing broader market approval compared to the original cURus-only certification
• Temperature Range: Extended lower operating temperature limit (-40°C versus -25°C) provides enhanced environmental capability
• Form Factor Compatibility: Identical mounting type (chassis mount) and termination style (terminal block) ensure mechanical and electrical interface compatibility
• Application Suitability: Both components are rated for regenerative motor drive applications

Frequently Asked Questions (FAQ)

Q: Can the FN5420-710-99-E0XXT directly replace the FN5045-660-99 in existing installations?

A: Yes. Both components share identical mounting type (chassis mount) and termination style (terminal block). The substitute provides higher current capacity (710 A versus 660 A) and extended temperature range, making it suitable for direct substitution in regenerative motor drive applications.

Q: What is the difference in inductance between these parts?

A: The FN5045-660-99 has 140 µH inductance, while the FN5420-710-99-E0XXT has 62 µH inductance. The lower inductance value in the substitute may affect filtering characteristics and should be evaluated against specific system requirements.

Q: Are there packaging differences between these parts?

A: The FN5045-660-99 is packaged as a single unit, while the FN5420-710-99-E0XXT is supplied in bulk packaging. Both maintain identical form factors suitable for chassis mount installation.

Q: What regulatory certifications does the substitute provide?

A: The FN5420-710-99-E0XXT holds CE, cURus, and UKCA certifications, providing compliance for European, North American, and United Kingdom markets. The original part held only cURus certification.

Q: Why is the original part obsolete?

A: Product obsolescence is determined by the manufacturer. The FN5420-710-99-E0XXT represents the current active product line for equivalent three-phase delta EMC/EMI line filter applications in this current range.