FN258L-180-07 Equivalent & Substitute Parts

Part Overview

The FN258L-180-07 is a three-phase delta EMC/EMI line filter rated for 180 A with chassis mount configuration and terminal block termination. This component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product portfolio. Organizations using this part in active systems or requiring replacement units must evaluate available substitute options that maintain functional compatibility within the specified electrical and mechanical parameters.

Substiute Parts

FN258L-180-07

Schaffner EMC Inc.In Stock: 743FN258L-180-07 Datasheet

Current PartRFQ

FN3359-180-28

Schaffner EMC Inc.In Stock: 703FN3359-180-28 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FN258L-180-07 is determined by the following critical parameters:

• Filter Type: Three Phase (Delta) configuration
• Current Rating: 180 A
• Frequency Range: DC ~ 60Hz operation
• Mounting Type: Chassis Mount
• Operating Temperature Range: -25°C ~ 100°C
• Voltage Compatibility: Phase to Ground/Neutral and Phase to Phase ratings

The FN3359-180-28 qualifies as a substitute based on matching the core functional requirements: identical three-phase delta filter type, 180 A current rating, DC ~ 60Hz frequency range, chassis mount configuration, and overlapping operating temperature range. Differences in configuration stage count (two versus three), termination style (terminal block versus threaded post), and voltage ratings represent design variations that may affect installation methodology and electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The FN258L-180-07 is designated Not For New Designs, establishing the FN3359-180-28 as the active equivalent from Schaffner EMC Inc. for ongoing procurement requirements.

Selection between these parts must account for the following engineering considerations:

Termination compatibility: The FN258L-180-07 uses terminal block connections, while the FN3359-180-28 requires threaded post (M10) termination. Installation methodology and wiring harness design must accommodate this difference.

Voltage rating differential: The FN3359-180-28 provides higher voltage ratings (300 V phase to ground/neutral, 520 V phase to phase) compared to the FN258L-180-07 (277 V and 480 V respectively). This represents a design margin increase and does not restrict application in systems rated at or below the original part's voltage specifications.

Filtering configuration: The three-stage design of the FN3359-180-28 versus the two-stage design of the FN258L-180-07 may affect EMI/EMI suppression characteristics and physical dimensions. System integration verification is necessary.

Regulatory compliance: Both parts maintain ROHS3 compliance and REACH Unaffected status. Approval agency certifications differ slightly (CSA, ENEC, UR for FN258L-180-07 versus cURus, ENEC for FN3359-180-28); verification against specific regional requirements is required.

Frequently Asked Questions (FAQ)

Q: Can the FN3359-180-28 directly replace the FN258L-180-07 in existing installations?

A: Direct mechanical and electrical replacement requires verification of termination compatibility. The FN258L-180-07 terminal block connections must be adapted to the FN3359-180-28 threaded post (M10) configuration. The higher voltage ratings of the FN3359-180-28 are compatible with systems designed for the original part's specifications.

Q: What is the significance of the two-stage versus three-stage filter configuration difference?

A: Configuration stage count affects the filtering network topology and EMI suppression performance. The three-stage design of the FN3359-180-28 provides additional filtering stages compared to the two-stage FN258L-180-07. Application-specific EMI requirements must be evaluated to confirm functional equivalence.

Q: Are there packaging or inventory considerations for these parts?

A: Both parts are supplied in tray packaging. Current inventory status should be verified with the supplier, as availability may affect procurement timelines.

Q: How do the approval agency certifications differ between these parts?

A: The FN258L-180-07 carries CSA, ENEC, and UR certifications. The FN3359-180-28 carries cURus and ENEC certifications. Applications requiring specific regional certifications (particularly UR marking) must confirm the FN3359-180-28 meets applicable standards.

Q: What is the current product status of each part?

A: The FN258L-180-07 is Not For New Designs, indicating end-of-life status. The FN3359-180-28 is Active, representing the current product offering from Schaffner EMC Inc. for three-phase delta 180 A line filter applications.