SPP-4H150 Equivalent & Substitute Parts

Part Overview

The SPP-4H150 is a fuse link manufactured by Eaton - Bussmann Electrical Division, rated for 150A at 700V with blade mounting. This component is classified as obsolete, requiring a holder for installation in electrical and industrial applications. Due to its obsolete status, identifying functionally equivalent substitute parts is essential for system maintenance, repair, and continued operation where original inventory is depleted.

Substiute Parts

SPP-4H150

Eaton - Bussmann Electrical DivisionIn Stock: 1017SPP-4H150 Datasheet

Current PartRFQ

170M3764

Eaton - Bussmann Electrical DivisionIn Stock: 714170M3764 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 170M3764 is identified based on the following critical parameters that determine functional equivalence:

• Voltage Rating: Both parts operate at 700V AC, ensuring compatibility with the same electrical systems
• Manufacturer Consistency: Both parts are manufactured by Eaton - Bussmann Electrical Division, maintaining design and quality standards
• Current Rating Proximity: The substitute is rated at 160A, which is within acceptable tolerance for applications where the original 150A fuse link is used
• Regulatory Compliance: Both parts share identical ECCN (EAR99) and HTSUS (8536.10.0040) classifications
• Mounting Compatibility: While the original requires a holder and the substitute uses bolt mount, both are designed for industrial electrical installations

Parameter Comparison

Engineering Selection Recommendations

The 170M3764 is an active product from the same manufacturer, providing continuity of supply where the obsolete SPP-4H150 is no longer available. Both parts share identical voltage ratings (700V) and regulatory classifications (ECCN EAR99, HTSUS 8536.10.0040), confirming compatibility within the same regulatory framework.

The substitute operates at 160A versus the original 150A, representing a 6.7% increase in current rating. This difference must be evaluated against the specific circuit protection requirements of the application. The 170M3764 provides a breaking capacity of 200kA and melting I²t of 1100.0, specifications not provided for the original part.

The primary consideration is the change in mounting configuration: the SPP-4H150 requires a separate holder, while the 170M3764 uses bolt mount. This difference necessitates mechanical integration review to ensure compatibility with existing installation infrastructure.

Frequently Asked Questions (FAQ)

Q: Can the 170M3764 directly replace the SPP-4H150 in all applications?

A: Both parts operate at 700V and are manufactured by Eaton - Bussmann Electrical Division. However, the mounting type differs (holder vs. bolt mount), requiring mechanical compatibility assessment before substitution.

Q: What is the significance of the 10A current rating difference?

A: The 170M3764 is rated at 160A compared to the original 150A. This 6.7% increase means the substitute provides higher current capacity. Circuit protection requirements must be evaluated to confirm this rating is appropriate for the application.

Q: Are both parts compliant with the same regulatory standards?

A: Yes. Both parts share identical ECCN (EAR99) and HTSUS (8536.10.0040) classifications, confirming equivalent regulatory status.

Q: Why is the SPP-4H150 listed as obsolete?

A: The SPP-4H150 has been discontinued by the manufacturer. The 170M3764 is an active product offering equivalent electrical performance with updated mounting technology.

Q: What should be verified before implementing this substitution?

A: Mechanical mounting compatibility with existing holder or bolt mount infrastructure, confirmation that 160A current rating meets circuit protection requirements, and physical dimensions compatibility (170M3764: 1.969" L x 1.772" W x 2.323" H).