SPP-4F225 Equivalent & Substitute Parts

Part Overview

The SPP-4F225 is a fuse link manufactured by Eaton - Bussmann Electrical Division, rated for 225A at 700V with blade mounting. This component is classified as obsolete, requiring identification of functionally equivalent alternatives for continued system support and procurement planning.

Obsolete status necessitates substitute part identification to maintain electrical system integrity and ensure availability for replacement applications. Substitute parts must satisfy the core electrical parameters: voltage rating, current capacity, and mounting compatibility.

Substiute Parts

SPP-4F225

Eaton - Bussmann Electrical DivisionIn Stock: 1001SPP-4F225 Datasheet

Current PartRFQ

170M3716

Eaton - Bussmann Electrical DivisionIn Stock: 1075170M3716 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 170M3716 is identified based on the following substitution criteria:

Voltage Compatibility: Both parts operate at 700V AC, meeting the primary voltage requirement for circuit protection in industrial electrical systems.

Current Rating Alignment: The substitute part is rated at 250A, providing equivalent or superior current handling capacity relative to the 225A main part specification.

Manufacturer Consistency: Both parts are manufactured by Eaton - Bussmann Electrical Division, ensuring design philosophy and quality standards alignment.

Regulatory Compliance: Both parts share identical ECCN (EAR99) and HTSUS (8536.10.0040) classifications, confirming regulatory equivalence.

Mounting Consideration: The substitute employs bolt mount configuration versus the blade/holder requirement of the main part. This represents a mechanical interface change requiring verification of installation compatibility within the target application.

Parameter Comparison

Engineering Selection Recommendations

The 170M3716 substitute part satisfies the core electrical parameters of the obsolete SPP-4F225: equivalent voltage rating (700V), superior current capacity (250A vs. 225A), and identical regulatory classification.

The substitute part maintains active product status with Eaton - Bussmann Electrical Division, ensuring long-term availability and supply chain continuity.

The primary consideration for substitution is the mechanical interface change from blade/holder mounting to bolt mount configuration. Installation feasibility depends on the specific electrical enclosure or holder design in the target application. Mechanical compatibility assessment is required prior to implementation.

Frequently Asked Questions (FAQ)

Q: Can the 170M3716 directly replace the SPP-4F225 in existing installations?

A: Electrical parameters are compatible (700V, 250A capacity). However, the mounting interface differs: SPP-4F225 uses blade/holder mounting while 170M3716 uses bolt mount. Direct replacement requires mechanical compatibility verification with the existing holder or enclosure design.

Q: What is the significance of the current rating difference (225A vs. 250A)?

A: The substitute part's higher current rating (250A) provides equivalent or superior protection capability. The fuse will operate within its rated parameters when protecting circuits designed for 225A operation.

Q: Are both parts compliant with the same regulatory standards?

A: Both parts share identical ECCN (EAR99) and HTSUS (8536.10.0040) classifications, confirming regulatory equivalence for export and trade purposes.

Q: Why is the SPP-4F225 classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The 170M3716 represents an active alternative from the same manufacturer for continued procurement and system support.

Q: What is the breaking capacity specification and why does it matter?

A: The 170M3716 specifies 200kA breaking capacity at rated voltage. This parameter defines the maximum fault current the fuse can safely interrupt. Verification that this specification meets the application's fault current requirements is necessary.