FN351-80-34 Equivalent & Substitute Parts

Part Overview

The FN351-80-34 is a three-phase delta EMC/EMI line filter rated for 80 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 FN351-80-34 is classified as obsolete. Locating equivalent substitute parts is necessary to maintain system continuity and ensure access to components with compatible electrical and mechanical specifications for new designs or system replacements.

Substiute Parts

FN351-80-34

Schaffner EMC Inc.In Stock: 1179FN351-80-34 Datasheet

Current PartRFQ

FN351H-80-34

Schaffner EMC Inc.In Stock: 835FN351H-80-34 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FN351-80-34 is based on the following critical parameters that must remain consistent:

• Filter Type: Three Phase (Delta)
• Configuration: Single Stage
• Current Rating: 80 A
• Mounting Type: Chassis Mount
• Termination Style: Terminal Block
• Frequency Range: DC ~ 60 Hz
• Approval Agencies: CSA, ENEC, UR
• RoHS Compliance: ROHS3 Compliant

The FN351H-80-34 meets all these core requirements. Voltage ratings for phase-to-ground/neutral and phase-to-phase are higher in the substitute part (300 V and 520 V respectively versus 250 V and 440 V), which provides enhanced voltage margin. The operating temperature range is also extended to -25°C ~ 100°C, offering improved thermal performance.

Parameter Comparison

Engineering Selection Recommendations

The FN351H-80-34 is the manufacturer-recommended substitute for the obsolete FN351-80-34. Both components maintain identical core electrical and mechanical specifications: three-phase delta configuration, 80 A current rating, single-stage design, chassis mount with terminal block termination, and DC to 60 Hz frequency operation.

The FN351H-80-34 is actively manufactured and maintains all required certifications (CSA, ENEC, UR) and ROHS3 compliance. The higher voltage ratings (300 V phase-to-ground/neutral and 520 V phase-to-phase) and extended operating temperature range (-25°C ~ 100°C) provide additional design margin without compromising compatibility with systems designed for the original FN351-80-34 specifications.

Frequently Asked Questions (FAQ)

Q: Can the FN351H-80-34 directly replace the FN351-80-34 in existing designs?

A: Yes. The FN351H-80-34 maintains identical filter type, current rating, mounting configuration, and termination style. The higher voltage ratings and extended temperature range are compatible with applications designed for the FN351-80-34.

Q: What is the difference between the two part numbers?

A: The primary differences are product status (obsolete versus active), voltage ratings (FN351H-80-34 rated higher), and operating temperature range (FN351H-80-34 extended to 100°C). The core filtering function and electrical interface remain equivalent.

Q: Are the certifications identical?

A: Yes. Both parts carry CSA, ENEC, and UR approvals and are ROHS3 compliant.

Q: Does packaging differ between these parts?

A: The FN351-80-34 packaging is listed as standard, while the FN351H-80-34 is supplied in trays. This is a logistics consideration and does not affect electrical or mechanical compatibility.

Q: Why should I select the FN351H-80-34 over the obsolete FN351-80-34?

A: The FN351H-80-34 is actively manufactured, ensuring long-term availability and supply chain continuity. It provides equivalent functionality with enhanced voltage and temperature specifications.