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FN258P-180-07 Equivalent & Substitute Parts
Part Overview
The FN258P-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 This component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product portfolio.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 qualified substitute components that maintain functional compatibility within the specified electrical and mechanical parameters.
Substiute Parts
Key Parameters
| Parameter | FN258P-180-07 |
|---|---|
| Manufacturer | Schaffner EMC Inc. |
| Filter Type | Three Phase (Delta) |
| Configuration | Two Stage |
| Current Rating | 180 A |
| Voltage - Phase to Ground/Neutral | 277 V |
| Voltage - Phase to Phase | 480 V |
| Frequency - Operating | DC ~ 60Hz |
| Mounting Type | Chassis Mount |
| Termination Style | Terminal Block |
| Operating Temperature | -25°C ~ 100°C |
| Approval Agency | CSA, ENEC, UR |
| RoHS Status | ROHS3 Compliant |
| Product Status | Not For New Designs |
Substitute Part Grouping Explanation
Substitution eligibility for the FN258P-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
- Voltage Compatibility: Phase-to-ground and phase-to-phase ratings must meet or exceed the original specification
- Regulatory Compliance: Approval agencies and RoHS status must satisfy application requirements
The FN3359-180-28 qualifies as a substitute based on matching filter type, current rating, frequency range, and mounting configuration. However, differences in termination style, voltage ratings, and configuration stage count require evaluation against specific installation constraints.
Parameter Comparison
| Parameter | FN258P-180-07 | FN3359-180-28 | Notes |
|---|---|---|---|
| Manufacturer | Schaffner EMC Inc. | Schaffner EMC Inc. | Same manufacturer |
| Filter Type | Three Phase (Delta) | Three Phase (Delta) | Identical |
| Current Rating | 180 A | 180 A | Identical |
| Voltage - Phase to Ground/Neutral | 277 V | 300 V | Substitute rated higher |
| Voltage - Phase to Phase | 480 V | 520 V | Substitute rated higher |
| Frequency - Operating | DC ~ 60Hz | DC ~ 60Hz | Identical |
| Mounting Type | Chassis Mount | Chassis Mount | Identical |
| Termination Style | Terminal Block | Threaded Post (M10) | Different - requires installation modification |
| Configuration | Two Stage | Three Stage | Substitute provides additional filtering stage |
| Operating Temperature | -25°C ~ 100°C | -25°C ~ 100°C | Identical |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Identical |
| Approval Agency | CSA, ENEC, UR | cURus, ENEC | Partial overlap - UR not present in substitute |
Engineering Selection Recommendations
The FN3359-180-28 is electrically compatible with the FN258P-180-07 for applications operating within 480 V phase-to-phase and 277 V phase-to-ground specifications, as the substitute maintains equal or higher voltage ratings. Both components operate across the DC ~ 60Hz frequency range and maintain identical current capacity and temperature operating range.
The primary consideration for substitution is termination style compatibility. The FN258P-180-07 uses terminal block termination, while the FN3359-180-28 requires threaded post (M10) connection. Installation modifications to accommodate this difference are necessary.
The FN3359-180-28 provides three-stage filtering compared to the two-stage configuration of the original part, which may offer enhanced EMI/EMI suppression performance. This represents a functional enhancement rather than a limitation.
Approval agency coverage differs between the two parts. The original part carries CSA, ENEC, and UR certifications, while the substitute carries cURus and ENEC certifications. Applications requiring UR certification must verify whether cURus certification satisfies regulatory requirements.
Frequently Asked Questions (FAQ)
Q: Can the FN3359-180-28 directly replace the FN258P-180-07 without modification?
A: Direct replacement is not possible due to termination style differences. The FN258P-180-07 uses terminal block connections, while the FN3359-180-28 uses threaded post (M10) termination. Installation modifications are required.
Q: Are the voltage ratings compatible?
A: Yes. The FN3359-180-28 is rated for 300 V phase-to-ground and 520 V phase-to-phase, which exceed the FN258P-180-07 specifications of 277 V and 480 V respectively. The substitute is suitable for applications within the original voltage parameters.
Q: What is the difference between two-stage and three-stage filtering?
A: The FN258P-180-07 provides two filtering stages, while the FN3359-180-28 provides three stages. The additional stage in the substitute may provide enhanced EMI/EMI attenuation. Both configurations operate across the same frequency range and current capacity.
Q: Do both parts meet the same regulatory standards?
A: Both parts are ROHS3 compliant and carry ENEC certification. The FN258P-180-07 includes CSA and UR approvals, while the FN3359-180-28 carries cURus certification. Applications requiring specific approval agencies must verify certification alignment with regulatory requirements.
Q: What is the current inventory status?
A: The FN258P-180-07 has 969 units in stock. The FN3359-180-28 has 658 units in stock. Both are available as new original components.
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