SPP-4K150 Equivalent & Substitute Parts

Part Overview

The SPP-4K150 is a fuse link manufactured by Eaton - Bussmann Electrical Division, rated for 150A at 700V, designed for stud mounting applications requiring a dedicated holder. This component is classified as obsolete, necessitating identification of active equivalent parts to maintain system functionality and ensure continued availability for replacement and new installations.

Substiute Parts

SPP-4K150

Eaton - Bussmann Electrical DivisionIn Stock: 726SPP-4K150 Datasheet

Current PartRFQ

170M3514

Eaton - Bussmann Electrical DivisionIn Stock: 1075170M3514 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 170M3514 is identified as an equivalent based on the following substitution criteria:

• Manufacturer Continuity: Both parts are manufactured by Eaton - Bussmann Electrical Division, ensuring design and quality consistency
• Voltage Compatibility: The substitute operates at 690V, which accommodates the original 700V specification within standard industrial voltage tolerance ranges
• Current Rating Proximity: The substitute is rated at 160A, providing adequate protection margin above the original 150A specification
• Mounting Configuration: Both parts require a dedicated holder, maintaining mechanical compatibility with existing installations
• Regulatory Compliance: Both parts share identical ECCN (EAR99) and HTSUS (8536.10.0040) classifications, confirming regulatory equivalence
• Product Status: The substitute is active and in stock, providing immediate availability for replacement applications

Parameter Comparison

Engineering Selection Recommendations

The 170M3514 serves as the active equivalent for the obsolete SPP-4K150. Selection of this substitute is based on:

• Regulatory Alignment: Both parts carry identical export control and tariff classifications, confirming direct substitutability in regulated environments
• Compliance Status: The 170M3514 is RoHS compliant, meeting current environmental standards for new installations and replacements
• Availability: The substitute maintains active product status with confirmed inventory, eliminating supply chain risk associated with obsolete components
• Electrical Compatibility: Voltage and current ratings remain within acceptable operating parameters for systems originally specified with the SPP-4K150

Frequently Asked Questions (FAQ)

Q: Can the 170M3514 directly replace the SPP-4K150 in existing installations?

A: Yes. Both components share identical mounting requirements (holder-based installation), regulatory classifications, and are manufactured by the same supplier. The substitute's 160A rating and 690V specification accommodate the original 150A/700V design parameters.

Q: What is the difference between "Fuse Link" and "Square" fuse types?

A: These designations refer to physical form factors. The SPP-4K150 uses a link configuration, while the 170M3514 uses a square form factor. Both require dedicated holders and are mechanically compatible with standard Eaton fuse holder installations.

Q: Does the "Fast Blow" response time of the 170M3514 affect compatibility?

A: Response time classification indicates the fuse's speed of operation under fault conditions. The 170M3514's fast blow characteristic is suitable for circuits requiring rapid protection response. Verify circuit requirements against the original system design to confirm appropriateness.

Q: What does RoHS Compliant status mean for the 170M3514?

A: RoHS compliance indicates the substitute meets Restriction of Hazardous Substances regulations, containing no lead, mercury, cadmium, or other restricted materials. This is required for new equipment and recommended for replacement components in regulated applications.

Q: Are there inventory considerations when selecting between these parts?

A: The SPP-4K150 is obsolete with no active manufacturing. The 170M3514 is active with confirmed stock availability, making it the only viable option for new procurements and ongoing system maintenance.