SPP-4B225 Equivalent & Substitute Parts

Part Overview

The SPP-4B225 is a fuse link manufactured by Eaton - Bussmann Electrical Division, rated for 225A at 700V with blade mounting. This component is classified as obsolete, requiring identification of suitable alternatives for ongoing system maintenance and new installations. The obsolete status necessitates substitute part evaluation to ensure continued availability and system compatibility.

Substiute Parts

SPP-4B225

Eaton - Bussmann Electrical DivisionIn Stock: 1052SPP-4B225 Datasheet

Current PartRFQ

170M3616

Eaton - Bussmann Electrical DivisionIn Stock: 951170M3616 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The 170M3616 is identified as a substitute based on the following alignment criteria:

Voltage Compatibility: Both parts operate at 700V AC, meeting the primary electrical requirement for direct substitution in 700V circuits.

Current Rating Consideration: The substitute is rated at 250A, which exceeds the original 225A specification. This represents an uprated alternative suitable for applications requiring equal or higher current capacity.

Manufacturer Consistency: Both parts are manufactured by Eaton - Bussmann Electrical Division, ensuring design philosophy and quality standards alignment.

Mounting and Form Factor: The substitute features bolt mount configuration with rectangular blade package, differing from the original blade link holder requirement. This difference necessitates mechanical integration assessment during implementation.

Regulatory Compliance: Both parts carry REACH Unaffected status and EAR99 ECCN classification, maintaining regulatory consistency.

Parameter Comparison

Engineering Selection Recommendations

The 170M3616 is an active product with current manufacturing support, addressing the obsolescence constraint of the SPP-4B225. Selection of this substitute is based on:

Voltage Alignment: 700VAC rating matches the original specification, ensuring electrical compatibility in existing 700V systems.

Current Capacity: The 250A rating provides equivalent or superior protection capacity relative to the 225A original specification.

Regulatory Status: Active product status with CE, CSA, and UR approvals ensures compliance documentation availability and ongoing manufacturer support.

Mechanical Integration: The transition from blade link holder mounting to bolt mount configuration requires verification of mechanical compatibility within the target installation environment.

Frequently Asked Questions (FAQ)

Q: Can the 170M3616 directly replace the SPP-4B225 in existing installations?

A: Electrical compatibility is established through matching 700V ratings. Mechanical compatibility depends on the mounting infrastructure. The original SPP-4B225 requires a dedicated holder, while the 170M3616 uses bolt mount configuration. Installation feasibility requires assessment of available mounting points and holder compatibility.

Q: What is the significance of the current rating difference between 225A and 250A?

A: The 170M3616 is rated for 250A, exceeding the original 225A specification. This represents an uprated alternative suitable for circuits designed for 225A or lower current requirements. The higher rating does not create incompatibility; it provides additional capacity margin.

Q: Are both parts compliant with the same regulatory standards?

A: Both parts carry EAR99 ECCN classification and REACH Unaffected status. The 170M3616 holds CE, CSA, and UR approvals. Regulatory documentation should be verified for specific application requirements.

Q: What does the Melting I²t value indicate for the 170M3616?

A: The Melting I²t of 4200 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-4B225, limiting direct thermal comparison.

Q: Is the 170M3616 suitable for the same applications as the SPP-4B225?

A: Both parts are designed for electrical and industrial applications at 700V. Application suitability depends on matching the current rating to circuit requirements and verifying mechanical mounting compatibility within the specific installation environment.