SPP-5B250 Equivalent & Substitute Parts

Part Overview

The SPP-5B250 is a fuse link manufactured by Eaton - Bussmann Electrical Division, rated for 250A at 700V operation. This component is classified as obsolete and requires a holder for installation. Due to its obsolete status, identifying equivalent substitute parts with compatible electrical ratings and mounting configurations is essential for system maintenance and component replacement in existing installations.

Substiute Parts

SPP-5B250

Eaton - Bussmann Electrical DivisionIn Stock: 769SPP-5B250 Datasheet

Current PartRFQ

170M4609

Eaton - Bussmann Electrical DivisionIn Stock: 1142170M4609 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SPP-5B250 are identified based on the following critical parameters:

• Current Rating: 250A (exact match required)
• Voltage Rating: 690V–700V (compatible operating range)
• Manufacturer: Eaton - Bussmann Electrical Division (same manufacturer ensures design compatibility)
• Regulatory Compliance: ECCN EAR99 and HTSUS 8536.10.0040 classification maintained

The substitute part 170M4609 meets these criteria with a 250A rating at 690V, maintaining electrical compatibility within the specified voltage tolerance. Both parts share the same manufacturer and regulatory classification, ensuring functional equivalence for replacement applications.

Parameter Comparison

Engineering Selection Recommendations

The 170M4609 is an active product substitute for the obsolete SPP-5B250. Both components are manufactured by Eaton - Bussmann Electrical Division and share identical current ratings (250A) with compatible voltage specifications (690V vs. 700V). The substitute maintains the same regulatory classification (ECCN EAR99, HTSUS 8536.10.0040).

The primary difference is the mounting configuration: the SPP-5B250 requires a separate holder, while the 170M4609 features bolt mount installation. The 170M4609 also carries RoHS compliance certification, providing additional environmental compliance for new installations. Selection between these parts depends on the existing mounting infrastructure and compliance requirements of the target application.

Frequently Asked Questions (FAQ)

Q: Can the 170M4609 directly replace the SPP-5B250 in existing systems?

A: Electrical compatibility is confirmed (250A, 690V–700V range). However, mounting configuration differs: SPP-5B250 requires a holder, while 170M4609 uses bolt mount. Physical installation compatibility must be verified based on the existing holder or mounting structure.

Q: What is the voltage tolerance between 700V and 690V ratings?

A: Both ratings fall within standard industrial fuse voltage classifications. The 690V rating of the 170M4609 is acceptable for systems designed for 700V operation, as it represents a conservative rating within the same voltage class.

Q: Are there compliance differences between these parts?

A: Both parts share identical ECCN (EAR99) and HTSUS (8536.10.0040) classifications. The 170M4609 includes RoHS compliance certification, which may be required for certain applications or markets.

Q: What does "Fast Blow" response time mean for the 170M4609?

A: Fast Blow indicates the fuse operates with rapid response to overcurrent conditions. This characteristic is not specified for the SPP-5B250, so application-specific requirements should be verified before substitution.

Q: Why is the SPP-5B250 listed as obsolete?

A: Obsolete status indicates the part is no longer manufactured. The 170M4609 is an active product from the same manufacturer, making it the appropriate substitute for ongoing component availability.