SPP-5B450 Equivalent & Substitute Parts

Part Overview

The SPP-5B450 is a fuse link rated for 450A 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 functionally equivalent substitute parts is essential for system maintenance and component replacement in existing installations.

Substiute Parts

SPP-5B450

Eaton - Bussmann Electrical DivisionIn Stock: 1198SPP-5B450 Datasheet

Current PartRFQ

170M4613

Eaton - Bussmann Electrical DivisionIn Stock: 1153170M4613 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPP-5B450 is determined by the following critical parameters:

• Current Rating: 450A (exact match required)
• Voltage Rating: 700V AC (exact match required)
• Manufacturer: Eaton - Bussmann Electrical Division (same manufacturer ensures design compatibility)
• Regulatory Compliance: REACH and ECCN classification alignment

The substitute part 170M4613 meets these core electrical requirements. While the mounting configuration differs (bolt mount versus blade holder requirement), both components are manufactured by the same supplier and share identical electrical ratings, enabling functional substitution within appropriate mechanical installations.

Parameter Comparison

Engineering Selection Recommendations

The 170M4613 is the designated substitute for the obsolete SPP-5B450 based on electrical equivalence. Both components share identical current and voltage ratings (450A, 700V AC) and are supplied by the same manufacturer.

Key considerations for selection:

• The 170M4613 is active in production, ensuring long-term availability and supply chain continuity.
• The substitute features current regulatory compliance certifications (CE, CSA, UR) and RoHS compliance, meeting modern industrial standards.
• Mechanical integration differs: the SPP-5B450 requires a blade-type holder, while the 170M4613 uses bolt mount configuration. Installation compatibility must be verified against the target equipment's mechanical interface.
• The 170M4613 provides documented breaking capacity (200kA) and melting I²t (17000), enabling precise fault analysis in circuit protection design.

Frequently Asked Questions (FAQ)

Q: Can the 170M4613 directly replace the SPP-5B450 without modification?

A: Electrical substitution is valid due to identical current and voltage ratings. However, mechanical installation requires compatibility with the target holder or mounting interface. The SPP-5B450 uses blade mounting, while the 170M4613 uses bolt mount configuration.

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

A: Current rating (450A) and voltage rating (700V AC) are the primary determinants. Both the main part and substitute must match these specifications exactly to ensure proper circuit protection function.

Q: Why is the 170M4613 recommended over other potential alternatives?

A: The 170M4613 is the manufacturer-designated substitute, supplied by Eaton - Bussmann Electrical Division. It maintains electrical equivalence while offering active product status and current regulatory compliance.

Q: Are there compliance differences between the two parts?

A: The 170M4613 carries CE, CSA, and UR certifications and is RoHS compliant. The SPP-5B450 is obsolete and does not carry current certifications. For new installations or systems requiring modern compliance documentation, the 170M4613 is the appropriate selection.

Q: What is the significance of the different fuse types (Blade vs. Square)?

A: Fuse type refers to the physical form factor and mounting method. This difference requires mechanical compatibility verification with the installation equipment. Electrical performance is independent of form factor when current and voltage ratings match.