FN256-64-52 Equivalent & Substitute Parts

Part Overview

The FN256-64-52 is a three-phase (Wye) EMC/EMI line filter rated for 64 A with chassis mount configuration and terminal block termination. This component is classified as obsolete, making identification of suitable substitute parts essential for system maintenance and new design implementations. The filter operates across DC to 60 Hz frequency range and is approved by CSA, ENEC, and UR agencies.

Substiute Parts

FN256-64-52

Schaffner EMC Inc.In Stock: 807FN256-64-52 Datasheet

Current PartRFQ

FN3256H-64-34

Schaffner EMC Inc.In Stock: 1298FN3256H-64-34 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FN256-64-52 is determined by the following critical parameters:

• Current Rating: 64 A (must match exactly)
• Filter Type: Three Phase (Wye) configuration (must match)
• Configuration: Single Stage (must match)
• Mounting Type: Chassis Mount (must match)
• Termination Style: Terminal Block (must match)
• Voltage Ratings: Phase to Ground/Neutral and Phase to Phase ratings must meet or exceed the original specifications
• Operating Frequency: DC ~ 60Hz (must match)
• Approval Agencies: CSA, ENEC, UR certifications required for regulatory compliance

The FN3256H-64-34 meets all critical substitution criteria while offering enhanced voltage ratings and active product status.

Parameter Comparison

Engineering Selection Recommendations

The FN3256H-64-34 is the direct substitute for the obsolete FN256-64-52. Both components share identical current ratings, filter topology, mounting configuration, and termination style. The FN3256H-64-34 provides enhanced voltage ratings (300 V phase to ground/neutral and 520 V phase to phase compared to 277 V and 480 V respectively), ensuring compatibility with the original application while offering improved operational margin.

The FN3256H-64-34 maintains active product status with current manufacturing support and holds equivalent regulatory approvals (CSA, ENEC, UR). Both components are RoHS compliant and operate across the same temperature and frequency ranges. The substitute part is available in tray packaging with 1210 units in stock.

Frequently Asked Questions (FAQ)

Q: Can the FN3256H-64-34 directly replace the FN256-64-52 in existing installations?

A: Yes. Both components share identical current ratings (64 A), filter type (three-phase Wye), configuration (single stage), mounting type (chassis mount), and termination style (terminal block). The FN3256H-64-34 provides higher voltage ratings, which are compatible with applications designed for the original part.

Q: What are the key differences between these two parts?

A: The primary differences are product status (obsolete vs. active), voltage ratings (FN3256H-64-34 provides 300 V phase to ground/neutral and 520 V phase to phase versus 277 V and 480 V), RoHS compliance level (ROHS3 vs. RoHS Compliant), and packaging format (tray vs. standard).

Q: Are the regulatory approvals equivalent?

A: Yes. Both parts hold CSA, ENEC, and UR approvals, meeting the same regulatory requirements for EMC/EMI line filter applications.

Q: What is the operating frequency range for both parts?

A: Both the FN256-64-52 and FN3256H-64-34 operate across DC to 60 Hz frequency range.

Q: Are there any mechanical compatibility concerns?

A: No. Both components feature identical chassis mount configuration with terminal block termination, ensuring mechanical compatibility in existing installations.