SPP-4B400 Equivalent & Substitute Parts

Part Overview

The SPP-4B400 is a fuse link rated for 400A at 700V, manufactured by Eaton - Bussmann Electrical Division as part of the Semitron™ SPP series. 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 and component replacement in existing installations.

Substiute Parts

SPP-4B400

Eaton - Bussmann Electrical DivisionIn Stock: 868SPP-4B400 Datasheet

Current PartRFQ

170M3619

Eaton - Bussmann Electrical DivisionIn Stock: 937170M3619 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 170M3619 is qualified as an equivalent based on the following critical parameters:

• Current Rating: Both parts are rated for 400A
• Voltage Rating: Both parts are rated for 700V AC
• Manufacturer: Both parts are manufactured by Eaton - Bussmann Electrical Division
• Compliance & Certifications: Both parts carry ECCN EAR99 and HTSUS 8536.10.0040 classifications
• Regulatory Status: Both parts are REACH Unaffected

The 170M3619 differs in mounting configuration (bolt mount versus blade holder requirement) and fuse form factor (square versus blade), but maintains electrical equivalence in current and voltage ratings.

Parameter Comparison

Engineering Selection Recommendations

The 170M3619 is an active product from the same manufacturer with identical electrical ratings (400A, 700V AC). Selection of this substitute requires verification that the bolt mount configuration is compatible with the existing installation, as the original SPP-4B400 requires a dedicated holder. The 170M3619 carries current regulatory compliance (RoHS Compliant, CE, CSA, UR approvals) and is available in production inventory, making it suitable for applications where mounting configuration can be accommodated.

Frequently Asked Questions (FAQ)

Q: Can the 170M3619 directly replace the SPP-4B400 without modification?

A: Both parts share identical current (400A) and voltage (700V AC) ratings. However, the mounting configuration differs: the SPP-4B400 requires a blade holder, while the 170M3619 uses bolt mount. Installation compatibility depends on the existing mounting infrastructure.

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

A: Current rating (400A) and voltage rating (700V AC) are the primary electrical parameters that determine substitution eligibility. Both parts meet these specifications.

Q: Why is the SPP-4B400 listed as obsolete?

A: The SPP-4B400 is classified as obsolete by the manufacturer. The 170M3619 is an active product offering equivalent electrical performance with current manufacturing and regulatory compliance.

Q: Are there compliance differences between these parts?

A: The 170M3619 carries RoHS Compliant status and holds CE, CSA, and UR approvals. The SPP-4B400 specifications do not include these certifications in the provided data.

Q: What is the significance of the melting I²t value?

A: The melting I²t value (15000 for the 170M3619) characterizes the thermal energy required to melt the fuse element. This parameter is provided for the substitute part but not specified for the original SPP-4B400.