SPP-5M350 Equivalent & Substitute Parts

Part Overview

The SPP-5M350 is a fuse link manufactured by Eaton - Bussmann Electrical Division, rated for 350A at 700V operation. This component is part of the Semitron™ SPP series and requires a dedicated holder for installation. The product is currently classified as obsolete, making identification of compatible substitute parts essential for system maintenance and component replacement in existing installations.

Substiute Parts

SPP-5M350

Eaton - Bussmann Electrical DivisionIn Stock: 790SPP-5M350 Datasheet

Current PartRFQ

170M4561

Eaton - Bussmann Electrical DivisionIn Stock: 861170M4561 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPP-5M350 is determined by the following critical parameters:

• Current Rating: 350A (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 170M4561 meets all substitution criteria. Both components share identical current and voltage ratings, require holder-based mounting, and originate from the same manufacturer. The 170M4561 is classified as active product status, providing continued availability and support.

Parameter Comparison

Engineering Selection Recommendations

The 170M4561 serves as the direct substitute for the obsolete SPP-5M350. Selection is based on:

• Electrical Equivalence: Both components maintain 350A current rating and 700V AC voltage rating
• Mechanical Compatibility: Both require holder-based mounting, ensuring installation compatibility
• Product Availability: The 170M4561 maintains active product status with 775 pieces in current inventory, whereas the SPP-5M350 is obsolete
• Regulatory Compliance: The 170M4561 carries CSA and UR approvals, with RoHS compliance certification
• Manufacturer Continuity: Both components are manufactured by Eaton - Bussmann Electrical Division, ensuring design and performance consistency

Frequently Asked Questions (FAQ)

Q: Can the 170M4561 be used as a direct replacement for the SPP-5M350?

A: Yes. Both components share identical current (350A) and voltage (700V AC) ratings and require holder-based mounting. The 170M4561 is the designated substitute part.

Q: What is the difference between the SPP-5M350 and 170M4561 package types?

A: The SPP-5M350 is classified as a Fuse Link, while the 170M4561 is a rectangular blade fuse. Both require dedicated holders for installation. Physical dimensions of the 170M4561 are 1.969" L x 2.087" W x 2.717" H (50.00mm x 53.00mm x 69.00mm).

Q: Why is the SPP-5M350 listed as obsolete?

A: The SPP-5M350 has been discontinued by the manufacturer. The 170M4561 represents the active product line continuation for this electrical specification.

Q: Are there any compliance differences between these components?

A: The 170M4561 carries CSA and UR approvals and is RoHS compliant. The SPP-5M350 is REACH unaffected. Both components share the same ECCN (EAR99) and HTSUS (8536.10.0040) classifications.

Q: What is the breaking capacity of the 170M4561?

A: The 170M4561 has a breaking capacity of 200kA at rated voltage with a melting I²t value of 8500.