SPP-4E250 Equivalent & Substitute Parts

Part Overview

The SPP-4E250 is a fuse link manufactured by Eaton - Bussmann Electrical Division, rated for 250A at 700V. This component is classified as obsolete, requiring identification of active equivalent parts for continued system support and procurement. The part requires a dedicated holder for installation and is part of the Semitron™ SPP series. Due to its obsolete status, sourcing active alternatives is necessary for maintenance and new installations.

Substiute Parts

SPP-4E250

Eaton - Bussmann Electrical DivisionIn Stock: 1116SPP-4E250 Datasheet

Current PartRFQ

170M3666

Eaton - Bussmann Electrical DivisionIn Stock: 1179170M3666 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPP-4E250 is based on the following critical parameters:

• Current Rating: 250A (exact match required)
• Voltage Rating: 700V AC (exact match required)
• Manufacturer: Eaton - Bussmann Electrical Division (same manufacturer ensures design compatibility)
• Breaking Capacity: Minimum 200kA at rated voltage
• Compliance: REACH Unaffected and EAR99 classification maintained

The substitute part 170M3666 meets these criteria as an active alternative. While the mounting configuration differs (bolt mount versus blade mount requiring holder), both parts share identical electrical ratings and are manufactured by the same division, ensuring functional equivalence within their respective mounting systems.

Parameter Comparison

Engineering Selection Recommendations

The 170M3666 is the active equivalent for the obsolete SPP-4E250. Both components are manufactured by Eaton - Bussmann Electrical Division and share identical electrical specifications: 250A current rating and 700V AC voltage rating. The 170M3666 maintains EAR99 classification and provides documented breaking capacity of 200kA at rated voltage.

Selection of the 170M3666 requires verification that the bolt mount configuration is compatible with the installation system currently designed for the blade mount SPP-4E250. The physical dimensions of the 170M3666 (1.969" L x 1.772" W x 2.323" H) must be confirmed against available mounting space and holder specifications.

The 170M3666 is RoHS Compliant, providing enhanced environmental compliance compared to the obsolete SPP-4E250.

Frequently Asked Questions (FAQ)

Q: Can the 170M3666 directly replace the SPP-4E250 without modification?

A: Both parts have identical electrical ratings (250A, 700V AC). However, the mounting configuration differs: SPP-4E250 uses a blade mount requiring a holder, while 170M3666 uses bolt mount. Installation compatibility depends on the existing mounting infrastructure.

Q: What are the critical parameters for substitution?

A: Current rating (250A), voltage rating (700V AC), and manufacturer (Eaton - Bussmann Electrical Division) are the determining factors. Both parts meet these requirements.

Q: Is the 170M3666 suitable for the same applications as the SPP-4E250?

A: Yes, for electrical and industrial applications requiring 250A at 700V AC protection. Mounting system compatibility must be confirmed for the specific installation.

Q: What is the breaking capacity difference?

A: The 170M3666 specifies 200kA breaking capacity at rated voltage. The SPP-4E250 breaking capacity is not provided in available documentation.

Q: Are there compliance differences between these parts?

A: Both maintain EAR99 classification. The 170M3666 is RoHS Compliant, while the SPP-4E250 status is not specified. Both are REACH Unaffected or unspecified respectively.