SPP-5B300 Equivalent & Substitute Parts

Part Overview

The SPP-5B300 is a fuse link manufactured by Eaton - Bussmann Electrical Division, rated for 300A at 700V, designed for blade-type holder mounting. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for system maintenance and component replacement in existing installations.

Substiute Parts

SPP-5B300

Eaton - Bussmann Electrical DivisionIn Stock: 976SPP-5B300 Datasheet

Current PartRFQ

170M4610

Eaton - Bussmann Electrical DivisionIn Stock: 827170M4610 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 170M4610 is identified as functionally equivalent based on the following critical parameters:

• Manufacturer: Same manufacturer (Eaton - Bussmann Electrical Division) ensures design compatibility and performance consistency
• Voltage Rating: Both parts rated for 700V AC operation
• Current Rating: 170M4610 rated at 315A, providing equivalent or higher current capacity for the same voltage class
• Regulatory Compliance: Both parts share identical ECCN (EAR99) and HTSUS (8536.10.0040) classifications
• Mounting Architecture: Both are fuse components designed for electrical protection in industrial applications

The primary difference is the mounting configuration: SPP-5B300 uses blade-type mounting, while 170M4610 uses bolt mount with rectangular/blade package configuration. This distinction requires verification of holder compatibility in the target application.

Parameter Comparison

Engineering Selection Recommendations

The 170M4610 is an active product with current manufacturing support and regulatory compliance certifications (CE, CSA, UR), making it suitable for replacement applications where the SPP-5B300 is no longer available. The higher current rating (315A vs. 300A) at the same voltage class (700V) provides equivalent or enhanced protection capability.

Substitution feasibility depends on mechanical compatibility: the bolt mount configuration of 170M4610 requires verification against the blade-type holder specified for SPP-5B300. Physical dimensions (1.969" L x 2.087" W x 2.717" H) must be confirmed compatible with existing mounting infrastructure.

Both parts share identical trade classification codes (ECCN: EAR99, HTSUS: 8536.10.0040), confirming regulatory equivalence for import/export and tariff purposes.

Frequently Asked Questions (FAQ)

Q: Can 170M4610 directly replace SPP-5B300 in existing installations?

A: Direct replacement requires mechanical compatibility verification. SPP-5B300 uses blade-type mounting, while 170M4610 uses bolt mount. The holder or mounting fixture must accommodate the bolt mount configuration and physical dimensions of 170M4610 (50.00mm x 53.00mm x 69.00mm).

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

A: Both parts operate at 700V. The 315A rating of 170M4610 provides equivalent or higher current capacity, maintaining or improving protection characteristics for circuits originally protected by the 300A SPP-5B300.

Q: Are there compliance differences between these parts?

A: Both parts share identical ECCN (EAR99) and HTSUS (8536.10.0040) classifications. The 170M4610 carries active certifications (CE, CSA, UR) and RoHS compliance, while SPP-5B300 status information is not provided. This makes 170M4610 preferable for new installations or regulatory compliance requirements.

Q: What does "Requires Holder" mean for SPP-5B300?

A: This indicates the fuse link requires a separate holder or mounting fixture for installation. The 170M4610 bolt mount design may use a different holder type, necessitating infrastructure compatibility assessment.

Q: Why is SPP-5B300 classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The 170M4610, classified as active, represents the current equivalent offering from the same manufacturer for similar applications.