SPP-4H300 Equivalent & Substitute Parts

Part Overview

The SPP-4H300 is a fuse link manufactured by Eaton - Bussmann Electrical Division, rated for 300A at 700V. This component is classified as obsolete, requiring identification of suitable alternatives for continued system support. The part operates as a blade-mounted fuse element and necessitates a separate holder for installation. Due to its obsolete status, sourcing equivalent or substitute components is essential for maintenance and replacement applications.

Substiute Parts

SPP-4H300

Eaton - Bussmann Electrical DivisionIn Stock: 948SPP-4H300 Datasheet

Current PartRFQ

170M3767

Eaton - Bussmann Electrical DivisionIn Stock: 878170M3767 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The 170M3767 is identified as a substitute for the SPP-4H300 based on the following electrical and mechanical parameters:

• Voltage Rating Compatibility: Both components operate at 700V AC, ensuring electrical compatibility in the same circuit environment
• Current Rating Proximity: The 170M3767 is rated at 315A, providing protection in the same amperage range as the 300A SPP-4H300
• Manufacturer Consistency: Both parts are manufactured by Eaton - Bussmann Electrical Division, ensuring design and quality standards alignment
• Regulatory Compliance: Both components share identical ECCN (EAR99) and HTSUS (8536.10.0040) classifications
• Active Product Status: The 170M3767 maintains active product status, ensuring continued availability and support

Parameter Comparison

Engineering Selection Recommendations

The 170M3767 serves as an active substitute for the obsolete SPP-4H300. Selection of this alternative is supported by:

• Regulatory Alignment: Both components share identical export control classifications (EAR99) and tariff codes (8536.10.0040), ensuring compliance consistency
• Manufacturer Continuity: Sourcing from the same manufacturer maintains design philosophy and quality standards established for the original application
• Active Availability: The 170M3767 maintains active product status with documented inventory, ensuring reliable procurement for replacement and maintenance cycles
• Electrical Compatibility: Matching voltage ratings (700V) and comparable current ratings (315A vs. 300A) support direct substitution in electrical protection circuits

Frequently Asked Questions (FAQ)

Q: Can the 170M3767 directly replace the SPP-4H300 in existing installations?

A: The 170M3767 provides electrical compatibility at 700V and comparable amperage protection. However, mounting configuration differs: the SPP-4H300 requires a separate holder, while the 170M3767 uses bolt mount. Installation compatibility depends on the existing holder or mounting infrastructure in your application.

Q: What is the significance of the current rating difference (300A vs. 315A)?

A: The 170M3767 is rated 15A higher than the SPP-4H300. This difference places it in the same protective range for most industrial and electrical applications. Circuit design and load specifications determine whether this variance is acceptable for your specific use case.

Q: Why is the SPP-4H300 classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The 170M3767, maintained as an active product by the same manufacturer, represents the current alternative for continued system support.

Q: Are there packaging differences between these components?

A: Yes. The SPP-4H300 is supplied as a fuse link requiring external holder installation. The 170M3767 is supplied in bulk packaging as a complete square bolt-mount fuse assembly, including indicating features for visual status confirmation.

Q: Do both components meet the same regulatory standards?

A: Both components share identical ECCN (EAR99) and HTSUS (8536.10.0040) classifications, confirming alignment with export control and tariff regulations. The 170M3767 is RoHS Compliant, while the SPP-4H300 status is not specified in available documentation.