SPP-6E400 Equivalent & Substitute Parts

Part Overview

The SPP-6E400 is a fuse link manufactured by Eaton - Bussmann Electrical Division, rated for 400A at 700V operation. This component is classified as obsolete, requiring identification of active equivalent parts to maintain system functionality and ensure continued availability for replacement applications. The fuse link design necessitates use with a compatible holder assembly for proper installation and operation.

Substiute Parts

SPP-6E400

Eaton - Bussmann Electrical DivisionIn Stock: 805SPP-6E400 Datasheet

Current PartRFQ

170M5658

Eaton - Bussmann Electrical DivisionIn Stock: 1230170M5658 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete SPP-6E400 is based on the following critical electrical and mechanical parameters:

• Current Rating: 400A (exact match required)
• Voltage Rating: 700V AC (exact match required)
• Manufacturer: Eaton - Bussmann Electrical Division (same manufacturer ensures design compatibility)
• Mounting Configuration: Transition from fuse link (requires holder) to bolt mount assembly
• Regulatory Compliance: ECCN EAR99 classification maintained; HTSUS code alignment

The substitute part 170M5658 maintains identical electrical ratings while providing an active, currently manufactured alternative with enhanced availability and modern certifications.

Parameter Comparison

Engineering Selection Recommendations

The 170M5658 serves as the direct electrical equivalent for the obsolete SPP-6E400, matching the 400A / 700V AC specification exactly. Key advantages of the substitute include:

• Active Product Status: Currently manufactured and stocked (1122 pcs available), ensuring long-term supply continuity
• Enhanced Certifications: CE, CSA, and UR approvals provide broader regulatory acceptance across industrial markets
• RoHS Compliance: Meets modern environmental and material restriction requirements
• Documented Performance: Breaking capacity (200kA) and melting I²t (110000) values are specified, enabling precise circuit protection analysis
• Mounting Transition: Bolt mount configuration requires mechanical redesign of the installation assembly compared to the original fuse link holder requirement

Selection of 170M5658 is appropriate for new designs and replacement applications where the bolt mount installation method is compatible with system architecture.

Frequently Asked Questions (FAQ)

Q: Can 170M5658 directly replace SPP-6E400 without modification?

A: Electrical compatibility is confirmed (400A, 700V AC). However, mechanical installation differs: SPP-6E400 requires a fuse link holder, while 170M5658 uses bolt mount configuration. Installation hardware must be adapted accordingly.

Q: What are the key parameters that define substitution eligibility?

A: Current rating (400A), voltage rating (700V AC), and manufacturer (Eaton - Bussmann Electrical Division) are the primary criteria. Both parts maintain EAR99 export classification and 8536.10.0040 HTSUS code alignment.

Q: Why is SPP-6E400 listed as obsolete?

A: Obsolete status indicates the part is no longer in active production. The 170M5658 represents the current-generation equivalent with improved certifications and documented performance specifications.

Q: Are there performance differences between the two parts?

A: Both parts deliver identical electrical ratings. The 170M5658 provides documented breaking capacity (200kA) and melting I²t (110000) values. RoHS compliance and multi-agency certifications (CE, CSA, UR) are additional features of the substitute.

Q: What is the inventory status for each part?

A: SPP-6E400 has 746 pcs available (obsolete stock). 170M5658 has 1122 pcs available (active production), providing superior long-term availability.