FN256-80-28 Equivalent & Substitute Parts

Part Overview

The FN256-80-28 is a three-phase (Wye) EMC/EMI line filter rated for 80 A with chassis mount configuration and terminal block termination. This part is classified as obsolete, making substitute components necessary for new designs and ongoing system maintenance. The FN256-80-28 operates across DC to 60 Hz frequency range and is approved by CSA, ENEC, and UR agencies.

Substiute Parts

FN256-80-28

Schaffner EMC Inc.In Stock: 1177FN256-80-28 Datasheet

Current PartRFQ

FN3256H-80-35

Schaffner EMC Inc.In Stock: 968FN3256H-80-35 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FN256-80-28 is determined by the following critical parameters:

• Filter Type: Three Phase (Wye) configuration
• Current Rating: 80 A
• Mounting Type: Chassis Mount
• Termination Style: Terminal Block
• Frequency Range: DC ~ 60Hz operation
• Voltage Compatibility: Phase-to-ground and phase-to-phase ratings must support the operating environment
• Regulatory Compliance: CSA, ENEC, and UR approvals
• RoHS Compliance: ROHS3 Compliant status

The FN3256H-80-35 meets all substitution criteria as an active product from the same manufacturer with identical filter type, current rating, mounting configuration, termination style, frequency range, and regulatory approvals.

Parameter Comparison

Engineering Selection Recommendations

The FN3256H-80-35 is the direct substitute for the obsolete FN256-80-28. Both components share identical electrical specifications for current rating (80 A), filter topology (three-phase Wye), operating frequency (DC ~ 60Hz), and mechanical form factor (chassis mount with terminal block termination). The FN3256H-80-35 provides higher voltage ratings at both phase-to-ground/neutral (300 V vs. 277 V) and phase-to-phase (520 V vs. 480 V) levels, offering enhanced margin for system voltage variations. Both parts maintain equivalent regulatory compliance through CSA, ENEC, and UR approvals and are ROHS3 compliant. The FN3256H-80-35 is currently in active production status, ensuring availability for new designs and replacement applications.

Frequently Asked Questions (FAQ)

Q: Can the FN3256H-80-35 directly replace the FN256-80-28 in existing installations?

A: Yes. Both components are three-phase (Wye) EMC/EMI line filters rated for 80 A with identical mounting (chassis mount) and termination (terminal block) configurations. The FN3256H-80-35 has higher voltage ratings, which provides compatibility with the FN256-80-28 operating environment.

Q: What is the primary difference between these two parts?

A: The FN256-80-28 is obsolete, while the FN3256H-80-35 is an active product. The FN3256H-80-35 features higher voltage ratings (300 V phase-to-ground/neutral and 520 V phase-to-phase) compared to the FN256-80-28 (277 V and 480 V respectively).

Q: Are both parts certified by the same regulatory agencies?

A: Yes. Both the FN256-80-28 and FN3256H-80-35 carry approvals from CSA, ENEC, and UR, and both are ROHS3 compliant.

Q: What packaging is available for the substitute part?

A: The FN3256H-80-35 is supplied in Tray packaging.

Q: Do both parts operate across the same frequency range?

A: Yes. Both components operate from DC to 60 Hz.