SPP-4E350 Equivalent & Substitute Parts

Part Overview

The SPP-4E350 is a fuse link manufactured by Eaton - Bussmann Electrical Division, rated for 350A at 700V. This component is classified as obsolete and requires a holder for installation. Due to its obsolete status, identifying equivalent substitute parts is essential for system maintenance, repair, and continued operation in electrical and industrial applications where this fuse specification is required.

Substiute Parts

SPP-4E350

Eaton - Bussmann Electrical DivisionIn Stock: 924SPP-4E350 Datasheet

Current PartRFQ

170M3668

Eaton - Bussmann Electrical DivisionIn Stock: 1126170M3668 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 170M3668 is qualified as an equivalent based on the following critical parameters:

• Current Rating: Both parts are rated for 350A
• Voltage Rating: Both parts are rated for 700V AC
• Manufacturer: Both parts are manufactured by Eaton - Bussmann Electrical Division, ensuring consistent design standards and quality
• Compliance & Certifications: The substitute part holds CSA and UR approvals, meeting regulatory requirements for electrical safety
• Product Status: The substitute part is Active, ensuring ongoing availability and support

The primary difference is the mounting configuration: the main part requires a separate holder, while the substitute features bolt mount capability. Both configurations serve the same electrical protection function within the specified current and voltage parameters.

Parameter Comparison

Engineering Selection Recommendations

The 170M3668 is a direct electrical substitute for the SPP-4E350 based on matching current and voltage ratings. Selection of this substitute requires consideration of the following factors:

• Mounting Configuration: The substitute part uses bolt mount rather than requiring a separate holder. Installation must accommodate this mechanical difference.
• Product Availability: The substitute is Active status, ensuring continued supply and support, whereas the main part is Obsolete.
• Regulatory Compliance: The substitute carries CSA and UR approvals, meeting established safety standards for electrical protection devices.
• Environmental Compliance: The substitute is RoHS Compliant, meeting current environmental regulations.

Frequently Asked Questions (FAQ)

Q: Can the 170M3668 directly replace the SPP-4E350 in existing installations?

A: Both parts meet the same electrical specifications (350A, 700V). However, the mounting method differs: the SPP-4E350 requires a holder, while the 170M3668 uses bolt mount. Installation feasibility depends on whether the existing mounting infrastructure can accommodate bolt mount configuration.

Q: What are the key parameters that make these parts equivalent?

A: Current rating (350A), voltage rating (700V), and manufacturer (Eaton - Bussmann Electrical Division) are the primary equivalence criteria. Both parts provide identical electrical protection characteristics within these specifications.

Q: Why is the SPP-4E350 listed as obsolete?

A: Obsolete status indicates the part is no longer in active production. The 170M3668 represents an active alternative that meets the same electrical requirements.

Q: Are there any compliance differences between these parts?

A: The 170M3668 carries CSA and UR approvals and is RoHS Compliant. The SPP-4E350 specifications do not include these details in the available data. Both parts share the same ECCN and HTSUS classifications.

Q: What is the significance of the 200kA breaking capacity on the substitute part?

A: Breaking capacity indicates the maximum fault current the fuse can safely interrupt at rated voltage. The 170M3668 specification of 200kA at rated voltage defines its performance envelope for fault protection applications.