SPP-4E70 Equivalent & Substitute Parts

Part Overview

The SPP-4E70 is a fuse link manufactured by Eaton - Bussmann Electrical Division, rated at 70A 700V with blade mounting. This component is classified as obsolete, requiring identification of functionally equivalent alternatives for continued system support and procurement planning. Substitute parts must maintain electrical compatibility within the 700V AC system voltage and accommodate the blade mounting interface.

Substiute Parts

SPP-4E70

Eaton - Bussmann Electrical DivisionIn Stock: 945SPP-4E70 Datasheet

Current PartRFQ

170M3661

Eaton - Bussmann Electrical DivisionIn Stock: 988170M3661 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The 170M3661 is identified as a substitute based on the following electrical and mechanical parameters:

• Voltage Rating: Both parts operate at 700V AC, ensuring system compatibility
• Manufacturer: Both manufactured by Eaton - Bussmann Electrical Division, maintaining design and quality consistency
• Current Rating: 170M3661 rated at 80A provides overcurrent protection at a higher amperage level
• Mounting Interface: 170M3661 features bolt mount capability, compatible with systems requiring secure fastening
• Regulatory Compliance: Both parts carry REACH Unaffected status and EAR99 ECCN classification
• HTSUS Classification: Identical classification (8536.10.0040) confirms product category alignment

Parameter Comparison

Engineering Selection Recommendations

The 170M3661 is an active product with current manufacturing support, addressing the obsolescence status of SPP-4E70. Both components share identical voltage ratings (700V AC) and regulatory classifications (REACH Unaffected, EAR99), ensuring compliance continuity. The 170M3661 carries CSA and UR approvals with a specified breaking capacity of 200kA, providing documented performance characteristics. The current rating differential (80A vs. 70A) and mounting interface change (bolt mount vs. blade holder) require circuit-level evaluation to confirm system compatibility. Active inventory status of 170M3661 supports procurement reliability for ongoing applications.

Frequently Asked Questions (FAQ)

Q: Can 170M3661 directly replace SPP-4E70 in existing installations?

A: Both components operate at 700V AC and are manufactured by Eaton - Bussmann Electrical Division. However, the mounting interface differs (bolt mount vs. blade holder), and the current rating is higher (80A vs. 70A). Physical installation compatibility and circuit protection requirements must be verified before substitution.

Q: What is the significance of the current rating difference between 70A and 80A?

A: The 170M3661 provides overcurrent protection at 80A, compared to the SPP-4E70 at 70A. This difference affects the threshold at which the fuse will interrupt circuit current. System design parameters must confirm that 80A protection is appropriate for the intended application.

Q: Why is SPP-4E70 classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The 170M3661, classified as active, represents the current manufacturing alternative from the same manufacturer for equivalent voltage and protection applications.

Q: Are there regulatory or compliance differences between these parts?

A: Both components share identical REACH and ECCN classifications. The 170M3661 includes documented CSA and UR approvals with specified breaking capacity (200kA), providing additional regulatory documentation compared to the SPP-4E70.

Q: What mounting considerations apply when transitioning from SPP-4E70 to 170M3661?

A: SPP-4E70 requires a separate fuse holder for blade-type mounting. The 170M3661 features bolt mount capability, requiring different installation hardware and panel integration. Mechanical compatibility with existing enclosure designs must be confirmed.