SPP-5F250 Equivalent & Substitute Parts

Part Overview

The SPP-5F250 is a fuse link manufactured by Eaton - Bussmann Electrical Division, rated for 250A at 700V with blade mounting. This component is classified as obsolete, requiring identification of active equivalent parts for continued system support and procurement. The obsolete status necessitates sourcing alternative components that maintain electrical and mechanical compatibility with existing installations.

Substiute Parts

SPP-5F250

Eaton - Bussmann Electrical DivisionIn Stock: 896SPP-5F250 Datasheet

Current PartRFQ

170M4709

Eaton - Bussmann Electrical DivisionIn Stock: 1088170M4709 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPP-5F250 is based on the following critical electrical and mechanical parameters:

• Current Rating: 250A (exact match required)
• Voltage Rating: 700V AC (exact match required)
• Manufacturer: Eaton - Bussmann Electrical Division (same manufacturer ensures design compatibility)
• Regulatory Compliance: ECCN EAR99 and HTSUS 8536.10.0040 classification maintained
• Mounting Configuration: Mechanical interface must accommodate 250A/700V fuse element

The substitute part 170M4709 meets these core electrical parameters while offering active product status and enhanced availability. Both components share identical current and voltage ratings, regulatory classifications, and manufacturer origin.

Parameter Comparison

Engineering Selection Recommendations

The 170M4709 is the designated substitute for the obsolete SPP-5F250 based on the following criteria:

• Electrical Equivalence: Both components are rated 250A at 700V AC, ensuring identical electrical performance in circuit protection applications.
• Regulatory Alignment: Both parts share EAR99 ECCN classification and 8536.10.0040 HTSUS code, maintaining compliance with export and tariff requirements.
• Active Product Status: The 170M4709 is currently in active production with confirmed inventory availability (1034 pcs), eliminating supply chain risk associated with obsolete components.
• Certification Coverage: The 170M4709 carries CE, CSA, and UR approvals, providing broader regulatory recognition for industrial and electrical applications.
• RoHS Compliance: The substitute meets RoHS requirements, supporting environmental and regulatory mandates for new installations and replacements.

The primary design difference is the mounting configuration: the SPP-5F250 uses a blade-type holder mount, while the 170M4709 employs bolt mount construction. System integration must account for this mechanical interface change.

Frequently Asked Questions (FAQ)

Q: Can the 170M4709 directly replace the SPP-5F250 in existing installations?

A: Both components share identical electrical ratings (250A, 700V AC) and are manufactured by the same company. However, the mounting interface differs: SPP-5F250 requires a blade-type holder, while 170M4709 uses bolt mount. Physical installation compatibility depends on the existing holder or mounting bracket design.

Q: What is the significance of the 200kA breaking capacity specification for the 170M4709?

A: Breaking capacity indicates the maximum fault current the fuse can safely interrupt at rated voltage. The 170M4709 specification of 200kA at rated voltage defines the maximum short-circuit current the fuse element can handle without rupturing the case or creating hazardous conditions.

Q: Why does the SPP-5F250 show as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The 170M4709 is the active equivalent, ensuring continued availability and support for 250A/700V fuse applications.

Q: Are there any compliance differences between the two parts?

A: Both parts share identical ECCN (EAR99) and HTSUS (8536.10.0040) classifications. The 170M4709 additionally carries CE, CSA, and UR certifications and is RoHS compliant, providing enhanced regulatory coverage for modern industrial applications.

Q: What does the Melting I²t value of 3100 indicate for the 170M4709?

A: Melting I²t is a thermal characteristic representing the fuse element's energy absorption capacity before melting. This value is used in coordination calculations with other protective devices in the electrical system.

Q: Is the packaging difference significant for procurement?

A: The SPP-5F250 is listed with standard packaging, while the 170M4709 is supplied in bulk packaging. Bulk packaging typically offers cost advantages for high-volume procurement but may require internal repackaging for smaller distribution quantities.