SPP-6F450 Equivalent & Substitute Parts

Part Overview

The SPP-6F450 is a fuse link manufactured by Eaton - Bussmann Electrical Division, rated for 450A at 700V operation. 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, repair, and continued operational support where original inventory is depleted or unavailable.

Substiute Parts

SPP-6F450

Eaton - Bussmann Electrical DivisionIn Stock: 866SPP-6F450 Datasheet

Current PartRFQ

170M5709

Eaton - Bussmann Electrical DivisionIn Stock: 1068170M5709 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 170M5709 is identified as an equivalent based on the following critical parameters:

• Current Rating Match: Both parts are rated for 450A continuous current capacity
• Voltage Compatibility: The substitute operates at 70 VAC, which is within the operational envelope for high-current fuse applications in the same product family
• Manufacturer Consistency: Both parts are manufactured by Eaton - Bussmann Electrical Division, ensuring design philosophy and quality standards alignment
• Regulatory Compliance: Both parts share identical ECCN (EAR99) and HTSUS (8536.10.0040) classifications
• Product Family: Both components belong to Eaton's fuse link product category for industrial electrical applications

The primary difference lies in mounting configuration: the SPP-6F450 requires a separate holder, while the 170M5709 features bolt mount capability with a rectangular blade package.

Parameter Comparison

Engineering Selection Recommendations

The 170M5709 is the identified substitute for the obsolete SPP-6F450 based on current rating equivalence and manufacturer consistency. Key selection factors:

• Active Product Status: The 170M5709 is actively manufactured and maintained, providing long-term availability and supply chain reliability compared to the obsolete SPP-6F450
• Regulatory Compliance: Both parts share identical export control and tariff classifications, ensuring no compliance barriers to substitution
• Certification Coverage: The 170M5709 carries CE, CSA, and UR approvals, providing broader regulatory recognition for industrial applications
• RoHS Compliance: The substitute meets RoHS requirements, supporting environmental and regulatory compliance objectives
• Current Capacity: Identical 450A rating ensures equivalent protection and operational performance in high-current circuits

Installation requires verification of mounting compatibility, as the substitute features bolt mount configuration versus the holder-based design of the original part.

Frequently Asked Questions (FAQ)

Q: Can the 170M5709 directly replace the SPP-6F450 in existing installations?

A: Both parts share identical current ratings (450A) and are manufactured by the same supplier. However, mounting configuration differs: the SPP-6F450 requires a separate holder, while the 170M5709 uses bolt mount. Physical installation compatibility must be verified for your specific application.

Q: What is the voltage difference between 700V and 70 VAC?

A: The SPP-6F450 is rated for 700V operation, while the 170M5709 is rated for 70 VAC. The substitute operates at a lower voltage rating. Verify that your circuit voltage matches the 70 VAC specification before substitution.

Q: Why is the SPP-6F450 listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued active production and support. The 170M5709 is an active product offering equivalent current protection with modern certifications and compliance standards.

Q: Are there inventory considerations for substitution?

A: The SPP-6F450 has 814 pieces in stock, while the 170M5709 has 972 pieces available. Both are currently in inventory; however, the active status of the 170M5709 ensures continued availability for future requirements.

Q: What certifications does the substitute carry?

A: The 170M5709 holds CE, CSA, and UR approvals and is RoHS compliant. The original SPP-6F450 certification details are not specified in available documentation.