FN351-64-33 Equivalent & Substitute Parts

Part Overview

The FN351-64-33 is a three-phase delta EMC/EMI line filter rated for 64 A with chassis mount configuration and terminal block termination. This component is designed for inverters and power drive systems requiring electromagnetic compatibility filtering across DC to 60 Hz operating frequencies.

The FN351-64-33 is classified as obsolete. Locating active equivalent models is necessary to ensure continued availability, supply chain reliability, and access to components with current manufacturing support and compliance certifications.

Substiute Parts

FN351-64-33

Schaffner EMC Inc.In Stock: 1139FN351-64-33 Datasheet

Current PartRFQ

FN351H-64-33

Schaffner EMC Inc.In Stock: 1174FN351H-64-33 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FN351-64-33 is determined by the following critical parameters:

• Filter Type: Three Phase (Delta) configuration
• Current Rating: 64 A
• Mounting Type: Chassis Mount
• Termination Style: Terminal Block
• Operating Frequency: DC ~ 60 Hz
• Approval Agencies: CSA, ENEC, UR certifications
• RoHS Compliance: ROHS3 Compliant status

The FN351H-64-33 qualifies as a manufacturer-recommended substitute because it maintains identical filter type, current rating, mounting configuration, termination style, operating frequency, approval certifications, and RoHS compliance. Voltage ratings are elevated in the substitute model, which represents an enhancement rather than a limitation for applications designed for the original part.

Parameter Comparison

Engineering Selection Recommendations

The FN351H-64-33 is the manufacturer-recommended substitute for the obsolete FN351-64-33. Both components maintain identical core electrical and mechanical specifications: three-phase delta filter configuration, 64 A current rating, chassis mount design, terminal block termination, and DC to 60 Hz operating frequency.

The substitute part carries active product status with current manufacturing support. Both components hold equivalent approval certifications from CSA, ENEC, and UR, and both comply with ROHS3 requirements. The FN351H-64-33 provides enhanced voltage ratings (300 V phase-to-ground and 520 V phase-to-phase versus 250 V and 440 V respectively) and an extended operating temperature range (-25°C to 100°C versus -25°C to 85°C), representing functional improvements for the application.

Frequently Asked Questions (FAQ)

Q: What makes FN351H-64-33 a valid substitute for FN351-64-33?

A: The substitute maintains identical filter type (three-phase delta), current rating (64 A), mounting configuration (chassis mount), termination style (terminal block), operating frequency (DC ~ 60 Hz), and regulatory certifications (CSA, ENEC, UR). Both components are ROHS3 compliant.

Q: Are there mechanical compatibility concerns when substituting FN351H-64-33 for FN351-64-33?

A: Both components share identical mounting type (chassis mount) and termination style (terminal block), ensuring mechanical compatibility in applications designed for the original part.

Q: How do the voltage ratings differ between these parts?

A: The FN351-64-33 is rated for 250 V phase-to-ground and 440 V phase-to-phase. The FN351H-64-33 is rated for 300 V phase-to-ground and 520 V phase-to-phase. The substitute accommodates higher voltage applications while remaining suitable for systems designed for the original part's voltage specifications.

Q: What is the significance of the product status difference?

A: The FN351-64-33 is obsolete with no active manufacturing. The FN351H-64-33 is active with current production and supply availability, making it the appropriate choice for new designs and component replenishment.

Q: Do both parts hold the same regulatory approvals?

A: Yes. Both the FN351-64-33 and FN351H-64-33 carry CSA, ENEC, and UR approvals and comply with ROHS3 requirements.