RES-50 Equivalent & Substitute Parts

Part Overview

The RES-50 is a Super Lag Renewable Fuse manufactured by Eaton - Bussmann Electrical Division. This component is classified as Obsolete, making identification of suitable alternatives essential for ongoing system maintenance and component procurement. The Super Lag design provides time-delay characteristics suitable for applications requiring protection against transient overcurrents while maintaining sensitivity to sustained fault conditions.

Substiute Parts

RES-50

Eaton - Bussmann Electrical DivisionIn Stock: 1142RES-50 Datasheet

Current PartRFQ

LPS-RK-50SP

Eaton - Bussmann Electrical DivisionIn Stock: 985LPS-RK-50SP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the RES-50 is determined by the following critical parameters:

• Fuse type classification and time-delay characteristics
• Electrical rating (50/600 designation)
• RoHS compliance status
• Tariff classification alignment (HTSUS 8536.10.0040)
• Export control classification (ECCN EAR99)
• Manufacturer compatibility within the Eaton - Bussmann Electrical Division product line

The LPS-RK-50SP qualifies as a substitute based on matching these core parameters while representing an Active product status, providing a current-generation alternative to the Obsolete RES-50.

Parameter Comparison

Engineering Selection Recommendations

The LPS-RK-50SP represents the primary substitute for the Obsolete RES-50. Both components maintain RoHS Compliance and share identical export control and tariff classifications, ensuring regulatory and procurement consistency. The LPS-RK-50SP carries Active product status, indicating ongoing manufacturer support and availability. Selection between these components should be based on application-specific requirements for time-delay characteristics and dual-element protection features inherent to each design.

Frequently Asked Questions (FAQ)

Q: Why is the RES-50 listed as Obsolete? A: The RES-50 has reached end-of-life status within the Eaton - Bussmann Electrical Division product portfolio. The LPS-RK-50SP represents the current-generation equivalent within the same manufacturer's fuse product line.

Q: Are RES-50 and LPS-RK-50SP electrically interchangeable? A: Both components share the 50/600 electrical rating and are classified within the same HTSUS tariff code (8536.10.0040), indicating functional equivalence for the specified electrical parameters.

Q: Do both parts meet the same compliance requirements? A: Yes. Both the RES-50 and LPS-RK-50SP are RoHS Compliant and classified under ECCN EAR99, meeting identical regulatory requirements.

Q: What is the difference between Super Lag and Low-Peak Dual Element designs? A: These represent different fuse construction methodologies within the 50/600 rating class. Both provide time-delay protection; the specific design differences relate to internal element configuration and response characteristics to transient versus sustained overcurrent conditions.

Q: Is packaging a consideration for substitution? A: The RES-50 is packaged as standard series product, while the LPS-RK-50SP is supplied in Bulk packaging. Packaging format should be verified against procurement and assembly requirements.