Equivalent & Substitute Parts Reference: SPP-4E300

Part Overview

The Eaton - Bussmann Electrical Division SPP-4E300 is a 300A, 700V fuse link, classified as a blade-type fuse requiring a holder for installation. It is part of the Semitron™ SPP series. The fuse is currently designated as obsolete. As a result, it is necessary to identify alternative or substitute fuse models that meet similar electrical and mechanical parameters for ongoing maintenance and new design requirements.

Substiute Parts

SPP-4E300

Eaton - Bussmann Electrical DivisionIn Stock: 1210SPP-4E300 Datasheet

Current PartRFQ

170M3667

Eaton - Bussmann Electrical DivisionIn Stock: 889170M3667 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution is determined by overlapping and matching key parameters, including manufacturer, current rating, voltage rating, package type, and mounting method where specified. Substitutes are identified by matching the voltage rating at 700V/700 VAC, similar current rating in the 300-315A range, and compatible package styles that support blade or rectangular mounting provisions.

Key parameters:

• Manufacturer
• Current Rating (Amps)
• Voltage Rating
• Package / Case
• Mounting Type
• Status
• Packaging

Parameter Comparison

Engineering Selection Recommendations

The SPP-4E300 is classified as obsolete. The listed substitute part, 170M3667, is designated as active and is RoHS compliant. Both components are sourced from Eaton - Bussmann Electrical Division, and both are available in bulk packaging. The substitute part maintains the same voltage class and comparable current rating range.

Frequently Asked Questions (FAQ)

Q1: What are the primary substitution criteria for replacing SPP-4E300 with 170M3667?
A1: Substitution is based on matching voltage rating (700V/700 VAC), similar current rating (300A vs 315A), manufacturer consistency, compatible package type, and mounting requirements.

Q2: Are there package or mechanical compatibility considerations?
A2: The SPP-4E300 uses a fuse link package requiring a holder, while the 170M3667 utilizes a rectangular, blade-type bolt mount package. Compatibility with the holder or mount must be confirmed according to these parameters.

Q3: What certifications and compliance considerations apply?
A3: The SPP-4E300 status is obsolete. The substitute, 170M3667, remains active and is RoHS compliant. Both reference the ECCN EAR99 and the HTSUS code 8536.10.0040.

Q4: Are both parts available in the same packaging format?
A4: Yes, both SPP-4E300 and 170M3667 are supplied in bulk packaging.

Q5: Is the electrical rating sufficient when using 170M3667 as a substitute?
A5: The substitute, 170M3667, is rated for 315A at 700 VAC, providing a comparable electrical profile to the original 300A, 700V specification of SPP-4E300.