SPP-7B1200 Equivalent & Substitute Parts

Part Overview

The SPP-7B1200 is a fuse link manufactured by Eaton - Bussmann Electrical Division, rated for 1.2kA at 700V, designed for blade-type holder mounting. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance and component replacement in existing installations.

The obsolete status necessitates sourcing of substitute components that maintain electrical and mechanical compatibility with the original circuit design while ensuring continued operational safety and performance.

Substiute Parts

SPP-7B1200

Eaton - Bussmann Electrical DivisionIn Stock: 993SPP-7B1200 Datasheet

Current PartRFQ

170M6616

Eaton - Bussmann Electrical DivisionIn Stock: 1082170M6616 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPP-7B1200 is based on the following critical parameters:

• Voltage Rating: Substitute must meet or exceed 700V AC rating
• Current Rating: Substitute must provide equivalent or higher current capacity (1.2kA minimum)
• Mounting Compatibility: Substitute must be compatible with blade-type holder systems or provide mechanical equivalence
• Regulatory Compliance: Substitute must maintain REACH and export control compliance (EAR99)
• Manufacturer Reliability: Substitute sourced from established electrical component manufacturers with appropriate certifications

The identified substitute, 170M6616, meets these criteria through equivalent voltage and current ratings, active product status, and documented certifications.

Parameter Comparison

Engineering Selection Recommendations

The 170M6616 serves as an active substitute for the obsolete SPP-7B1200 based on the following factors:

• Electrical Equivalence: Both components operate at 700V with current ratings within 1.2kA to 1.25kA range, ensuring circuit protection characteristics remain within design parameters
• Manufacturer Continuity: Both components are manufactured by Eaton - Bussmann Electrical Division, ensuring consistent quality and reliability standards
• Regulatory Compliance: The 170M6616 maintains EAR99 export classification and carries CE, CSA, and UR certifications, meeting international safety and compliance requirements
• Active Product Status: The 170M6616 is actively manufactured and stocked, providing reliable long-term availability for replacement applications
• Enhanced Specifications: The 170M6616 provides documented breaking capacity (200kA) and melting I²t (290000), offering measurable performance data for circuit design verification

Mechanical Consideration: The 170M6616 uses bolt mount configuration versus the blade holder requirement of the SPP-7B1200. Installation requires verification of mounting compatibility with existing holder systems.

Frequently Asked Questions (FAQ)

Q: Can the 170M6616 directly replace the SPP-7B1200 without modification?

A: Electrical compatibility is confirmed through equivalent voltage and current ratings. Mechanical compatibility requires verification of the mounting interface, as the SPP-7B1200 uses blade-type holder mounting while the 170M6616 uses bolt mount configuration.

Q: What is the significance of the current rating difference (1.2kA vs. 1.25kA)?

A: The 170M6616 provides a 0.05kA higher current rating, which maintains circuit protection within design specifications. This represents a 4.2% increase and does not compromise protective function.

Q: Why is the SPP-7B1200 classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The 170M6616 represents the active equivalent in the Eaton - Bussmann product line for this voltage and current class.

Q: Are there compliance differences between the two components?

A: Both components share EAR99 export classification. The 170M6616 carries documented CE, CSA, and UR certifications and is RoHS compliant, providing enhanced regulatory documentation compared to the obsolete SPP-7B1200.

Q: What is the melting I²t specification and why does it matter?

A: Melting I²t (290000 for the 170M6616) quantifies the thermal energy required to melt the fuse element. This parameter ensures the fuse responds appropriately to overcurrent conditions within the circuit's protective design.

Q: Is inventory availability a factor in component selection?

A: The 170M6616 maintains active inventory status (1070 pcs in stock) compared to the obsolete SPP-7B1200, ensuring reliable procurement for immediate and future replacement needs.