SPP-7K500 Equivalent & Substitute Parts

Part Overview

The SPP-7K500 is a fuse link rated for 500A 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 equivalent substitute parts is essential for system maintenance and component replacement in existing electrical installations.

Substiute Parts

SPP-7K500

Eaton - Bussmann Electrical DivisionIn Stock: 957SPP-7K500 Datasheet

Current PartRFQ

170M6508

Eaton - Bussmann Electrical DivisionIn Stock: 731170M6508 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SPP-7K500 is determined by the following critical electrical and mechanical parameters:

• Current Rating: 500A (exact match required)
• Voltage Rating: 700V AC (exact match required)
• Mounting Configuration: Requires Holder (mechanical compatibility)
• Manufacturer: Eaton - Bussmann Electrical Division (same manufacturer ensures design compatibility)

The substitute part 170M6508 meets all substitution criteria. It maintains identical current and voltage ratings, operates within the same holder-based mounting system, and is manufactured by the same supplier. The transition from Fuse Link to Square/Rectangular form factor is permissible provided the holder accommodates the new package geometry.

Parameter Comparison

Engineering Selection Recommendations

The 170M6508 is the direct substitute for the obsolete SPP-7K500. Both components share identical electrical ratings (500A, 700V) and are manufactured by Eaton - Bussmann Electrical Division. The 170M6508 holds active product status and carries CSA and UR approvals, providing regulatory compliance for new installations and replacements.

The transition from the SPP-7K500 to 170M6508 requires verification that the existing holder assembly accommodates the rectangular blade package geometry (2.008" L x 2.992" W x 3.622" H). The 170M6508 provides enhanced specifications including a 200kA breaking capacity and RoHS compliance, making it suitable for modern electrical system requirements.

Frequently Asked Questions (FAQ)

Q: Can the 170M6508 directly replace the SPP-7K500 in existing installations?

A: The 170M6508 matches the SPP-7K500 in current rating (500A) and voltage rating (700V). Mechanical compatibility depends on the holder assembly. The rectangular blade configuration of the 170M6508 must fit within the existing holder designed for the SPP-7K500 fuse link form factor.

Q: What are the key differences between these two fuse types?

A: The SPP-7K500 uses a fuse link package, while the 170M6508 employs a rectangular blade configuration. Both require holder-based mounting. The 170M6508 provides additional technical specifications including 200kA breaking capacity and 14000 melting I²t rating, which are not documented for the SPP-7K500.

Q: Is the 170M6508 RoHS compliant?

A: Yes, the 170M6508 is RoHS compliant. The SPP-7K500 RoHS status is not specified in available documentation.

Q: What certifications does the 170M6508 carry?

A: The 170M6508 holds CSA and UR approvals, ensuring compliance with North American electrical standards.

Q: Are there inventory considerations for this substitution?

A: The 170M6508 is currently in active production with 694 pieces available in stock. The SPP-7K500 is obsolete with 930 pieces remaining in inventory.