SPP-5M550 Equivalent & Substitute Parts

Part Overview

The SPP-5M550 is a fuse link manufactured by Eaton - Bussmann Electrical Division, rated for 550A at 700V operation. This component is part of the Semitron™ SPP series and requires an external holder for installation. The part is currently classified as obsolete, making identification of compatible substitute components essential for system maintenance and replacement applications in electrical and industrial environments.

Substiute Parts

SPP-5M550

Eaton - Bussmann Electrical DivisionIn Stock: 1104SPP-5M550 Datasheet

Current PartRFQ

170M4565

Eaton - Bussmann Electrical DivisionIn Stock: 783170M4565 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete SPP-5M550 is determined by matching the following critical electrical and mechanical parameters:

• Current Rating: 550A
• Voltage Rating: 700V AC
• Mounting Type: Requires Holder
• Manufacturer: Eaton - Bussmann Electrical Division
• Regulatory Compliance: REACH and ECCN alignment

The substitute part 170M4565 meets these core requirements. While it differs in form factor (rectangular blade versus fuse link configuration), both components operate at identical electrical specifications and are sourced from the same manufacturer, ensuring compatibility within systems designed for 550A / 700VAC protection.

Parameter Comparison

Engineering Selection Recommendations

The 170M4565 is the primary substitute for the obsolete SPP-5M550. Both components share identical electrical ratings (550A / 700VAC) and are manufactured by Eaton - Bussmann Electrical Division under the same regulatory classification (EAR99, HTSUS 8536.10.0040).

The 170M4565 holds active product status with CSA and UR approvals, providing current availability and ongoing manufacturer support. The component features a 200kA breaking capacity at rated voltage and includes an indicating function for operational status monitoring.

Physical form factor differs between the two parts: the SPP-5M550 uses a fuse link configuration while the 170M4565 employs a rectangular blade design. Both require external holders for installation. Mechanical compatibility with existing holder assemblies must be verified based on specific holder specifications before substitution.

Frequently Asked Questions (FAQ)

Q: Can the 170M4565 directly replace the SPP-5M550 in existing installations?

A: Both components meet identical electrical specifications (550A / 700VAC) and originate from the same manufacturer. However, physical form factor differences (fuse link versus rectangular blade) require verification that the existing holder assembly accommodates the 170M4565 blade configuration before installation.

Q: What is the primary reason for substituting the SPP-5M550?

A: The SPP-5M550 is classified as obsolete. The 170M4565 provides an electrically equivalent alternative with active product status and current manufacturer availability.

Q: Are there regulatory or compliance differences between these parts?

A: Both components share identical ECCN (EAR99) and HTSUS (8536.10.0040) classifications. The 170M4565 carries CSA and UR approvals. The SPP-5M550 is REACH Unaffected. No compliance barriers exist for substitution.

Q: What is the breaking capacity of the SPP-5M550?

A: Breaking capacity for the SPP-5M550 is not specified in available documentation. The 170M4565 provides 200kA breaking capacity at rated voltage.

Q: Do both parts require the same holder type?

A: Both components require external holders for installation. Holder compatibility depends on specific mechanical dimensions and blade configuration. The 170M4565 dimensions are 1.969" L x 2.087" W x 2.717" H (50.00mm x 53.00mm x 69.00mm). Verify holder specifications before substitution.