FN351-180-36 Equivalent & Substitute Parts

Part Overview

The FN351-180-36 is a three-phase delta EMC/EMI line filter rated for 180 A with chassis mount configuration and terminal block termination. This component is designed for inverters and power drive systems operating across DC to 60 Hz frequency ranges. The FN351-180-36 is currently obsolete, making identification of compatible substitute parts essential for system maintenance and new design implementations.

Key Parameters

Parameter	Value
Filter Type	Three Phase (Delta)
Configuration	Single Stage
Current Rating	180 A
Voltage - Phase to Ground/Neutral	250 V
Voltage - Phase to Phase	440 V
Frequency - Operating	DC ~ 60Hz
Mounting Type	Chassis Mount
Termination Style	Terminal Block
Operating Temperature	-25°C ~ 85°C
Series	FN 351

Substitute Part Grouping Explanation

The FN351H-180-36 qualifies as a direct substitute for the FN351-180-36 based on the following matching parameters:

Filter Type: Three Phase (Delta) configuration maintained
Current Rating: 180 A identical specification
Configuration: Single Stage maintained
Frequency - Operating: DC ~ 60Hz identical range
Mounting Type: Chassis Mount maintained
Termination Style: Terminal Block maintained
Series: FN 351 base product family

The substitute part demonstrates enhanced electrical ratings and extended operating temperature range, positioning it as a compatible upgrade path for obsolete inventory replacement.

Parameter Comparison

Parameter	FN351-180-36	FN351H-180-36
Filter Type	Three Phase (Delta)	Three Phase (Delta)
Configuration	Single Stage	Single Stage
Current Rating	180 A	180 A
Voltage - Phase to Ground/Neutral	250 V	300 V
Voltage - Phase to Phase	440 V	520 V
Frequency - Operating	DC ~ 60Hz	DC ~ 60Hz
Mounting Type	Chassis Mount	Chassis Mount
Termination Style	Terminal Block	Terminal Block
Operating Temperature	-25°C ~ 85°C	-25°C ~ 100°C
Product Status	Obsolete	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

The FN351H-180-36 is the manufacturer-recommended substitute for the obsolete FN351-180-36. Both components maintain identical core electrical specifications for three-phase delta filtering at 180 A with DC to 60 Hz operation. The FN351H-180-36 carries active product status, ensuring ongoing availability and supply chain continuity.

Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for new designs and legacy system replacements. The FN351H-180-36 provides enhanced voltage ratings and extended operating temperature range, making it suitable for applications requiring higher thermal or electrical margins.

Frequently Asked Questions (FAQ)

Q: Can the FN351H-180-36 directly replace the FN351-180-36 in existing systems?

A: Yes. Both components share identical filter type, current rating, frequency range, mounting configuration, and termination style. The FN351H-180-36 maintains backward compatibility while offering enhanced electrical specifications.

Q: What are the key differences between these two parts?

A: The FN351H-180-36 provides higher voltage ratings (300 V phase-to-ground versus 250 V, and 520 V phase-to-phase versus 440 V) and extended operating temperature range (-25°C to 100°C versus -25°C to 85°C). The FN351-180-36 is obsolete while the FN351H-180-36 maintains active product status.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the FN351-180-36 and FN351H-180-36 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What packaging format is used for these components?

A: Both parts are supplied in tray packaging, suitable for automated assembly and component handling processes.

Q: Is the FN351H-180-36 available in inventory?

A: Yes. The FN351H-180-36 is an active product with 780 pieces in new original stock, ensuring availability for immediate procurement.

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