FN258-130-35 Equivalent & Substitute Parts

Part Overview

The FN258-130-35 is a three-phase delta EMC/EMI line filter rated for 130 A chassis mount operation. This component is designed for inverters and power drive systems requiring two-stage filtering across DC to 60 Hz frequency ranges. The part carries a "Not For New Designs" status, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new platform development.

Substiute Parts

FN258-130-35

Schaffner EMC Inc.In Stock: 1031FN258-130-35 Datasheet

Current PartRFQ

FN3288-125-35-C35-R65

Schaffner EMC Inc.In Stock: 1095FN3288-125-35-C35-R65 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The FN3288-125-35-C35-R65 qualifies as a functional substitute based on the following alignment of critical electrical and mechanical parameters:

Matching Parameters:

• Filter topology: Three-phase delta configuration
• Filter architecture: Two-stage design
• Mounting interface: Chassis mount with terminal block termination
• Operating frequency range: DC ~ 60 Hz
• Application domain: Inverters and power drive systems
• Compliance framework: ROHS3 compliant, REACH unaffected, EAR99 classification

Substitution-Relevant Variations:

• Current capacity: 125 A (substitute) versus 130 A (original)
• Voltage rating: 530 V phase-to-phase / 305 V phase-to-ground (substitute) versus 480 V phase-to-phase / 277 V phase-to-ground (original)
• Operating temperature range: -40°C ~ 100°C (substitute) versus -25°C ~ 100°C (original)
• Product status: Active (substitute) versus Not For New Designs (original)

Parameter Comparison

Engineering Selection Recommendations

The FN3288-125-35-C35-R65 is the designated substitute for the FN258-130-35. Selection between these parts depends on system voltage and current requirements:

Use FN258-130-35 when:

• System operates at 480 V phase-to-phase / 277 V phase-to-ground
• Load current does not exceed 130 A
• Legacy component replacement is required within existing designs

Use FN3288-125-35-C35-R65 when:

• System operates at 530 V phase-to-phase / 305 V phase-to-ground
• Load current does not exceed 125 A
• New designs require active product status and extended low-temperature operation (-40°C minimum)
• Long-term component availability and supply chain continuity are priorities

Both parts maintain identical filter topology, two-stage architecture, and terminal block interface. The substitute carries active product status and broader temperature operating range, supporting extended system lifecycle requirements.

Frequently Asked Questions (FAQ)

Q: Can the FN3288-125-35-C35-R65 directly replace the FN258-130-35 in a 480 V system?

A: No. The FN3288-125-35-C35-R65 is rated for 530 V phase-to-phase operation. Direct substitution in a 480 V system would operate the component below its rated voltage specification. Voltage compatibility must be verified before installation.

Q: What is the current capacity difference between these parts?

A: The FN258-130-35 is rated for 130 A, while the FN3288-125-35-C35-R65 is rated for 125 A. In applications where load current approaches or exceeds 125 A, the substitute may not provide adequate margin. System current requirements must be evaluated against the 125 A rating.

Q: Are the physical dimensions and mounting interfaces identical?

A: Both parts feature chassis mount configuration with terminal block termination. Mechanical compatibility should be confirmed through dimensional drawings, as the input parameters do not specify physical dimensions.

Q: Why is the FN258-130-35 marked "Not For New Designs"?

A: This status indicates the part is in mature or end-of-life phase. The FN3288-125-35-C35-R65 carries active product status, making it the preferred choice for new system development and long-term supply chain planning.

Q: Do both parts meet the same compliance standards?

A: Both parts are ROHS3 compliant and REACH unaffected. The FN258-130-35 carries CSA, ENEC, and UR approvals. Approval agency alignment for the FN3288-125-35-C35-R65 should be confirmed against specific system certification requirements.

Q: What is the temperature operating range difference?

A: The FN258-130-35 operates from -25°C to 100°C, while the FN3288-125-35-C35-R65 operates from -40°C to 100°C. The substitute provides 15°C additional low-temperature capability, supporting applications in colder environments.