SPP-4B175 Equivalent & Substitute Parts

Part Overview

The SPP-4B175 is a fuse link manufactured by Eaton - Bussmann Electrical Division, rated for 175A 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 applications where this fuse link was originally specified.

Substiute Parts

SPP-4B175

Eaton - Bussmann Electrical DivisionIn Stock: 947SPP-4B175 Datasheet

Current PartRFQ

170M3615

Eaton - Bussmann Electrical DivisionIn Stock: 929170M3615 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SPP-4B175 is determined by the following critical parameters:

• Current Rating: 175A nominal capacity
• Voltage Rating: 700V AC operation
• Mounting Configuration: Holder-based installation
• Regulatory Compliance: ECCN EAR99 classification and REACH status
• Manufacturer Continuity: Eaton - Bussmann Electrical Division

The substitute part 170M3615 shares the same manufacturer, voltage rating (700VAC), regulatory classification (ECCN EAR99, HTSUS 8536.10.0040), and is currently active in production. However, the 170M3615 operates at 200A with a different mounting type (bolt mount) and package configuration (rectangular, blade), which represents a higher current capacity variant within the same product family and regulatory framework.

Parameter Comparison

Engineering Selection Recommendations

The 170M3615 is the designated substitute for the obsolete SPP-4B175 based on manufacturer continuity and regulatory alignment. Both components share identical ECCN (EAR99) and HTSUS (8536.10.0040) classifications, ensuring consistent export and import compliance.

The 170M3615 is currently in active production status, providing supply chain continuity. The higher current rating (200A versus 175A) and increased breaking capacity (200kA) position this substitute as a capable replacement within the same voltage class (700V).

Physical and mounting differences exist: the SPP-4B175 uses a fuse link package requiring a holder, while the 170M3615 employs a rectangular blade configuration with bolt mount installation. These differences necessitate mechanical integration review in the target application.

Frequently Asked Questions (FAQ)

Q: Can the 170M3615 directly replace the SPP-4B175 without modification?

A: Both components operate at 700V and share the same regulatory classification. However, the mounting type differs (holder-based versus bolt mount), requiring mechanical integration assessment before installation.

Q: What is the significance of the current rating difference (175A vs. 200A)?

A: The 170M3615 provides higher current capacity. In applications where the original 175A rating was specified, the 200A substitute offers increased headroom. Circuit design review is necessary to confirm compatibility with existing protection schemes.

Q: Why is the SPP-4B175 obsolete?

A: The SPP-4B175 is classified as obsolete by the manufacturer. The 170M3615 represents the active production alternative within the Eaton - Bussmann Electrical Division product line.

Q: Are there compliance differences between these parts?

A: Both components share identical ECCN (EAR99) and HTSUS (8536.10.0040) classifications. The 170M3615 is RoHS Compliant, while RoHS status for the SPP-4B175 is not specified.

Q: What are the physical dimension implications?

A: The SPP-4B175 dimensions are not specified. The 170M3615 measures 1.969" L x 1.772" W x 2.323" H (50.00mm x 45.00mm x 59.00mm). Physical space verification in the installation location is required.