SPP-5F300 Equivalent & Substitute Parts

Part Overview

The SPP-5F300 is a fuse link manufactured by Eaton - Bussmann Electrical Division, rated for 300A at 700V operation. This component is classified as obsolete, requiring identification of functionally equivalent alternatives for continued system support and procurement planning. The obsolete status necessitates substitute part evaluation to maintain electrical protection functionality in applications where this fuse link was originally specified.

Substiute Parts

SPP-5F300

Eaton - Bussmann Electrical DivisionIn Stock: 1093SPP-5F300 Datasheet

Current PartRFQ

170M4710

Eaton - Bussmann Electrical DivisionIn Stock: 1012170M4710 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute part identification for the SPP-5F300 is based on the following electrical and mechanical parameters:

• Current Rating: 300A (main part) vs. 315A (substitute) — within acceptable tolerance for fuse protection circuits
• Voltage Rating: 700V (main part) vs. 700VAC (substitute) — equivalent voltage class
• Manufacturer: Eaton - Bussmann Electrical Division — same manufacturer ensures design compatibility
• Mounting Configuration: Transition from holder-based mounting to bolt mount configuration
• Regulatory Compliance: Both parts share identical ECCN (EAR99) and HTSUS (8536.10.0040) classifications
• Product Status: Active substitute available for obsolete original part

The 170M4710 substitute maintains electrical protection characteristics within the specified voltage and current operating envelope while offering active product status and current manufacturing support.

Parameter Comparison

Engineering Selection Recommendations

The 170M4710 serves as the designated substitute for the obsolete SPP-5F300 based on the following criteria:

• Both components are manufactured by Eaton - Bussmann Electrical Division, ensuring design and performance consistency
• Electrical ratings (300A/315A at 700V/700VAC) fall within the same protection class
• The 170M4710 maintains active product status with current manufacturing availability and supply chain support
• Regulatory classifications are identical (ECCN: EAR99; HTSUS: 8536.10.0040)
• The substitute carries multiple international approvals (CE, CSA, UR) and RoHS compliance, meeting modern regulatory requirements
• Mechanical transition from holder-based to bolt mount configuration requires installation method evaluation for the specific application

Frequently Asked Questions (FAQ)

Q: Can the 170M4710 directly replace the SPP-5F300 without modification?

A: Electrical compatibility is established through matching voltage class (700V) and current rating proximity (300A vs. 315A). However, the mounting configuration differs: SPP-5F300 requires a separate holder, while 170M4710 uses bolt mount. Installation method must be evaluated for the specific application.

Q: What is the significance of the current rating difference (300A vs. 315A)?

A: The 15A difference represents a 5% increase in current capacity. This falls within acceptable tolerance for fuse protection circuits where the substitute provides equivalent or enhanced protection characteristics.

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

A: The 170M4710 carries CE, CSA, and UR approvals with RoHS compliance. The SPP-5F300 specifications do not list these certifications. Both share identical export control (ECCN: EAR99) and tariff (HTSUS: 8536.10.0040) classifications.

Q: What does the melting I²t value indicate?

A: The melting I²t (6200 for 170M4710) represents the thermal energy required to melt the fuse element. This parameter defines the fuse's response time and protection characteristics under fault conditions.

Q: Is the 170M4710 suitable for industrial and electrical applications?

A: Yes. The 170M4710 is specified for electrical and industrial applications with a breaking capacity of 200kA at rated voltage, supporting high-fault-current environments.