SPP-4F80 Equivalent & Substitute Parts

Part Overview

The SPP-4F80 is an 80A 700V blade fuse link manufactured by Eaton - Bussmann Electrical Division, part of the Semitron™ SPP series. This component is classified as obsolete and requires a holder for installation. Due to its obsolete status, identifying equivalent substitute parts is essential for system maintenance, repair, and continued operation in electrical and industrial applications where 80A 700V protection is required.

Substiute Parts

SPP-4F80

Eaton - Bussmann Electrical DivisionIn Stock: 1115SPP-4F80 Datasheet

Current PartRFQ

170M3711

Eaton - Bussmann Electrical DivisionIn Stock: 1140170M3711 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the SPP-4F80 is determined by the following critical electrical and mechanical parameters:

• Current Rating: 80A (exact match required)
• Voltage Rating: 700V AC (exact match required)
• Manufacturer: Eaton - Bussmann Electrical Division (same manufacturer ensures design compatibility)
• HTSUS Classification: 8536.10.0040 (same commodity code confirms functional equivalence)

The substitute part 170M3711 meets these core substitution criteria. While it differs in mounting type (bolt mount versus blade link) and fuse form factor (square versus blade), both components are manufactured by the same supplier and share identical electrical ratings. The difference in physical form reflects the evolution of fuse technology within the same product family, with the 170M3711 representing an active, current-generation alternative.

Parameter Comparison

Engineering Selection Recommendations

The 170M3711 is the designated substitute for the obsolete SPP-4F80 based on electrical equivalence (80A, 700V) and manufacturer continuity. Selection of the 170M3711 is supported by:

• Active product status, ensuring ongoing availability and manufacturing support
• RoHS compliance, meeting current environmental and regulatory standards
• CSA and UR approvals, confirming third-party certification for industrial and electrical applications
• Identical HTSUS and ECCN classifications, confirming functional and regulatory equivalence

The primary consideration for implementation is the change in mounting architecture from blade link (requiring a separate holder) to bolt mount (direct installation). System integration must account for this mechanical difference, which may require modification to the mounting fixture or enclosure design.

Frequently Asked Questions (FAQ)

Q: Can the 170M3711 directly replace the SPP-4F80 without any modifications?

A: Electrical substitution is valid; both components provide 80A 700V protection. However, mechanical integration differs. The SPP-4F80 is a blade link requiring a holder assembly, while the 170M3711 is a bolt-mount square fuse. Installation requires appropriate mounting hardware compatible with bolt-mount fuses.

Q: What is the significance of the change from blade to square fuse form factor?

A: Both form factors are standardized fuse configurations manufactured by Eaton. The square bolt-mount design of the 170M3711 represents current-generation technology. The electrical performance and protection characteristics remain equivalent at the specified 80A 700V rating.

Q: Are there any compliance or certification differences between these parts?

A: The 170M3711 carries CSA and UR approvals and is RoHS compliant. The SPP-4F80 specifications do not list these certifications, reflecting its obsolete status. The 170M3711 meets contemporary regulatory requirements for industrial and electrical applications.

Q: What does the melting I²t value of 185 indicate for the 170M3711?

A: The melting I²t is a thermal characteristic that defines the fuse's response to overcurrent conditions. This value is provided for the 170M3711 but not specified for the SPP-4F80 in available documentation.

Q: Are both parts subject to the same export controls?

A: Yes. Both components share identical ECCN (EAR99) and HTSUS (8536.10.0040) classifications, confirming equivalent regulatory treatment for export and trade purposes.