SPP-7F500 Equivalent & Substitute Parts

Part Overview

The SPP-7F500 is a fuse link manufactured by Eaton - Bussmann Electrical Division, rated for 500A at 700V operation. This component is classified as obsolete and requires a holder for installation. Due to its obsolete status, identifying functionally equivalent substitute parts is essential for system maintenance, repair, and continued operational support where original inventory is depleted or unavailable.

Substiute Parts

SPP-7F500

Eaton - Bussmann Electrical DivisionIn Stock: 799SPP-7F500 Datasheet

Current PartRFQ

170M6708

Eaton - Bussmann Electrical DivisionIn Stock: 981170M6708 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute part 170M6708 qualifies as an equivalent based on the following critical parameters:

• Current Rating: Both parts are rated for 500A operation
• Voltage Rating: Both parts are rated for 700V AC operation
• Manufacturer: Both parts are manufactured by Eaton - Bussmann Electrical Division, ensuring design compatibility and quality consistency
• Regulatory Classification: Both parts share identical ECCN (EAR99) and HTSUS (8536.10.0040) classifications
• REACH Compliance: Both parts maintain REACH Unaffected status

The primary difference is the mounting configuration: SPP-7F500 uses a blade-type fuse link requiring a holder, while 170M6708 employs a bolt mount rectangular configuration. Both mounting types are suitable for 500A/700V applications within their respective installation frameworks.

Parameter Comparison

Engineering Selection Recommendations

The 170M6708 is an active product with current manufacturing support, whereas the SPP-7F500 is obsolete. Both parts share identical electrical ratings (500A/700V) and are manufactured by the same supplier, ensuring functional equivalence for overcurrent protection applications.

Selection between these parts depends on installation infrastructure:

• SPP-7F500 replacement: Use 170M6708 if the existing installation can accommodate bolt mount rectangular fuse configuration
• Installation compatibility: Verify that the electrical enclosure or fuse holder assembly supports the bolt mount rectangular form factor of 170M6708 (2.008" L x 2.992" W x 3.622" H)

The 170M6708 provides additional documented specifications including 200kA breaking capacity and 14000 melting I²t rating, supporting more detailed system analysis. RoHS compliance of 170M6708 aligns with modern environmental standards.

Frequently Asked Questions (FAQ)

Q: Can 170M6708 directly replace SPP-7F500 in existing installations?

A: Direct replacement requires mechanical compatibility verification. SPP-7F500 uses a blade-type fuse link requiring a holder, while 170M6708 uses bolt mount rectangular configuration. The electrical ratings (500A/700V) are identical, but the physical mounting interface differs. Confirm that your fuse holder or enclosure supports the bolt mount rectangular form factor before substitution.

Q: What are the key electrical parameters for substitution?

A: Current rating (500A) and voltage rating (700V AC) are the primary electrical parameters determining substitution eligibility. Both parts meet these specifications identically.

Q: Why is SPP-7F500 listed as obsolete?

A: Obsolete status indicates that the manufacturer has discontinued production. The 170M6708 is an active product with ongoing manufacturing support and availability.

Q: Are there compliance differences between these parts?

A: Both parts share identical ECCN (EAR99) and HTSUS (8536.10.0040) classifications. The 170M6708 is RoHS Compliant, while RoHS status for SPP-7F500 is not specified. Both maintain REACH Unaffected status or equivalent compliance.

Q: What is the significance of the breaking capacity and melting I²t specifications?

A: Breaking capacity (200kA) and melting I²t (14000) for 170M6708 define the fuse's ability to safely interrupt fault currents and its thermal response characteristics. These specifications are provided for 170M6708 but not documented for SPP-7F500 in the available data.

Q: How do mounting differences affect system design?

A: SPP-7F500 requires a separate holder assembly, while 170M6708 uses direct bolt mount installation. System redesign or adapter solutions may be necessary depending on existing infrastructure. Consult your electrical enclosure documentation for compatible fuse configurations.