SPP-5M450 Equivalent & Substitute Parts

Part Overview

The SPP-5M450 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. The obsolete status necessitates identification of active equivalent parts to maintain system functionality and ensure continued availability for replacement applications.

Substiute Parts

SPP-5M450

Eaton - Bussmann Electrical DivisionIn Stock: 818SPP-5M450 Datasheet

Current PartRFQ

170M4563

Eaton - Bussmann Electrical DivisionIn Stock: 753170M4563 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The 170M4563 qualifies as a functional equivalent based on the following critical parameters:

• Current Rating: Both parts rated at 450A
• Voltage Rating: Both parts rated at 700V (AC)
• Mounting Requirement: Both require holder installation
• Manufacturer: Same manufacturer (Eaton - Bussmann Electrical Division)
• Regulatory Classification: Identical ECCN (EAR99) and HTSUS codes (8536.10.0040)

The primary difference is form factor: SPP-5M450 is a fuse link, while 170M4563 is a square/rectangular blade fuse. Both maintain electrical equivalence at the specified current and voltage ratings.

Parameter Comparison

Engineering Selection Recommendations

The 170M4563 is the active equivalent for SPP-5M450 replacement applications. Selection is based on:

• Identical electrical ratings (450A, 700V)
• Same manufacturer source (Eaton - Bussmann Electrical Division)
• Active product status ensuring ongoing availability
• Equivalent regulatory compliance (ECCN, HTSUS classification)
• Holder-based mounting compatibility

Physical form factor differs (link versus rectangular blade), requiring verification that the substitute holder accommodates the rectangular blade configuration before installation.

Frequently Asked Questions (FAQ)

Q: Can 170M4563 directly replace SPP-5M450 in existing installations?

A: Electrical compatibility is confirmed at 450A and 700V ratings. Physical compatibility depends on holder design. The SPP-5M450 fuse link holder must accommodate the rectangular blade form factor of 170M4563. Holder specifications must be reviewed before substitution.

Q: What are the key parameters that determine substitution eligibility?

A: Current rating (450A), voltage rating (700V), and mounting requirement (holder-based installation) are the primary electrical and mechanical parameters. Both parts meet these criteria.

Q: Why is SPP-5M450 listed as obsolete?

A: Obsolete status indicates the part is no longer manufactured. The 170M4563 is the active equivalent maintained in current production by the same manufacturer.

Q: Are there compliance differences between these parts?

A: Both parts share identical ECCN (EAR99) and HTSUS (8536.10.0040) classifications. No compliance differentiation exists for export or tariff purposes.

Q: What is the significance of the 200kA breaking capacity specification?

A: The 170M4563 specifies 200kA breaking capacity at rated voltage. This parameter is not provided for SPP-5M450. Breaking capacity indicates the maximum fault current the fuse can safely interrupt without rupture or hazard.