SPP-4H400 Equivalent & Substitute Parts

Part Overview

The SPP-4H400 is a fuse link manufactured by Eaton - Bussmann Electrical Division, rated for 400A at 700V with blade mounting. This component is classified as obsolete, requiring a holder for operation. Due to its obsolete status, identifying functionally equivalent substitute parts is essential for system maintenance and component replacement in existing installations.

Substiute Parts

SPP-4H400

Eaton - Bussmann Electrical DivisionIn Stock: 1196SPP-4H400 Datasheet

Current PartRFQ

170M3769

Eaton - Bussmann Electrical DivisionIn Stock: 989170M3769 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 170M3769 is qualified as an equivalent based on the following critical parameters:

• Current Rating: 400A (matches SPP-4H400)
• Voltage Rating: 700VAC (matches SPP-4H400 specification)
• Manufacturer: Eaton - Bussmann Electrical Division (same manufacturer)
• HTSUS Code: 8536.10.0040 (identical classification)
• ECCN: EAR99 (identical export classification)

The 170M3769 differs in mounting configuration (bolt mount versus blade holder requirement) and fuse form factor (square versus link), but maintains electrical equivalence through identical current and voltage ratings. Both components are designed for industrial and electrical applications with the same regulatory compliance framework.

Parameter Comparison

Engineering Selection Recommendations

The 170M3769 serves as an active substitute for the obsolete SPP-4H400 based on electrical equivalence. Both components share identical current (400A) and voltage (700V) ratings, identical HTSUS and ECCN classifications, and are manufactured by the same supplier. The 170M3769 holds active product status with CSA and UR approvals, providing regulatory continuity for replacement applications.

Selection of the 170M3769 requires verification that the mounting interface (bolt mount configuration) is compatible with the existing installation, as the SPP-4H400 requires a dedicated holder. The 170M3769 provides specified breaking capacity (200kA) and indicating features not documented for the original part.

Frequently Asked Questions (FAQ)

Q: Can the 170M3769 directly replace the SPP-4H400 in existing installations?

A: Electrical compatibility is confirmed through matching 400A current and 700V voltage ratings. Physical installation compatibility depends on the mounting interface. The SPP-4H400 requires a holder, while the 170M3769 uses bolt mount configuration. Mechanical integration must be evaluated for each application.

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

A: Current rating (400A), voltage rating (700V), manufacturer (Eaton - Bussmann Electrical Division), and regulatory classification (HTSUS 8536.10.0040, ECCN EAR99) establish substitution equivalence. Mounting type and fuse form factor are secondary considerations dependent on installation requirements.

Q: Why is the SPP-4H400 listed as obsolete?

A: The SPP-4H400 is classified as obsolete by the manufacturer. The 170M3769 is an active product offering equivalent electrical performance with current regulatory approvals.

Q: Are there compliance differences between the two parts?

A: The 170M3769 carries CSA and UR approvals with specified breaking capacity (200kA). The SPP-4H400 approval status is not documented. Both share identical ECCN (EAR99) and HTSUS (8536.10.0040) classifications.

Q: What is the significance of the different fuse types (link versus square)?

A: Fuse type reflects form factor and mounting methodology. The link type requires a holder assembly, while the square type uses bolt mount configuration. Electrical performance at rated specifications (400A, 700V) remains equivalent.