SPP-7M700 Equivalent & Substitute Parts

Part Overview

The SPP-7M700 is a fuse link rated for 700A 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-7M700

Eaton - Bussmann Electrical DivisionIn Stock: 954SPP-7M700 Datasheet

Current PartRFQ

170M6561

Eaton - Bussmann Electrical DivisionIn Stock: 943170M6561 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 170M6561 is qualified as an equivalent based on the following critical parameters:

• Current Rating: Both parts are rated for 700A
• Voltage Rating: Both parts are rated for 700V AC
• Mounting Type: Both require a holder for installation
• Manufacturer: Both are manufactured by Eaton - Bussmann Electrical Division
• Regulatory Compliance: Both share identical ECCN (EAR99) and HTSUS (8536.10.0040) classifications
• REACH Status: Both are REACH Unaffected

The primary difference is the fuse form factor: the SPP-7M700 is a stud-mounted fuse link, while the 170M6561 is a square/rectangular blade fuse. Both form factors are mechanically and electrically compatible within their respective holder systems.

Parameter Comparison

Engineering Selection Recommendations

The 170M6561 is the qualified substitute for the obsolete SPP-7M700 based on electrical equivalence. Both components share identical current and voltage ratings, regulatory classifications, and manufacturer origin. The 170M6561 offers the additional advantage of active product status, ensuring continued availability and supply chain reliability.

The transition from stud-mounted to rectangular blade form factor requires verification that the installation holder is compatible with the blade configuration. Both fuse types are designed for high-current industrial applications and meet the same regulatory requirements (ECCN EAR99, HTSUS 8536.10.0040).

The 170M6561 provides documented breaking capacity (200kA) and melting I²t characteristics (44500.0), along with CSA and UR approvals, supporting its use in regulated electrical systems.

Frequently Asked Questions (FAQ)

Q: Can the 170M6561 directly replace the SPP-7M700 in existing installations?

A: Both components are electrically equivalent at 700A and 700V ratings. However, the form factor differs: SPP-7M700 is a stud-mounted fuse link, while 170M6561 is a rectangular blade fuse. The installation holder must be compatible with the blade configuration for proper installation.

Q: What is the significance of the product status difference?

A: The SPP-7M700 is obsolete, meaning it is no longer manufactured or supported. The 170M6561 is active, ensuring ongoing availability, technical support, and supply chain continuity for future replacements.

Q: Are there any compliance differences between these parts?

A: Both parts share identical ECCN (EAR99) and HTSUS (8536.10.0040) classifications. The 170M6561 includes CSA and UR approvals and is RoHS Compliant, providing additional regulatory documentation for modern electrical systems.

Q: What do the breaking capacity and melting I²t values indicate?

A: Breaking capacity (200kA) specifies the maximum fault current the fuse can safely interrupt. Melting I²t (44500.0) indicates the thermal energy required to melt the fuse element, determining response time and protection characteristics. These values confirm the 170M6561 is suitable for high-fault-current industrial applications.

Q: Is the moisture sensitivity level relevant for substitution?

A: The SPP-7M700 has MSL 1 (Unlimited), indicating no moisture sensitivity constraints. The 170M6561 lists MSL as Not Applicable, which is consistent with fuse component design and does not affect substitution compatibility.