LKN-50 Equivalent & Substitute Parts

Part Overview

The LKN-50 is a Super Lag Renewable Link fuse manufactured by Eaton - Bussmann Electrical Division, rated for 50/250 amperes. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for system maintenance and component replacement in existing installations. The part maintains RoHS compliance and carries an MSL rating of 1 (Unlimited), indicating minimal moisture sensitivity concerns during storage and handling.

Substiute Parts

LKN-50

Eaton - Bussmann Electrical DivisionIn Stock: 1195LKN-50 Datasheet

Current PartRFQ

LPN-RK-50SP

Eaton - Bussmann Electrical DivisionIn Stock: 960LPN-RK-50SP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The LPN-RK-50SP is identified as the manufacturer-recommended substitute for the obsolete LKN-50. Substitution eligibility is determined by the following parameters:

• Identical amperage rating (50/250)
• Identical HTSUS classification (8536.10.0040)
• Identical ECCN classification (EAR99)
• RoHS compliance maintained in both parts
• Manufacturer continuity (Eaton - Bussmann Electrical Division)

The LPN-RK-50SP represents an active product line alternative, classified as a Low Peak Dual Element fuse, providing functional equivalence for the discontinued LKN-50 Super Lag Renewable Link design.

Parameter Comparison

Engineering Selection Recommendations

The LPN-RK-50SP is the designated manufacturer substitute for the obsolete LKN-50. Both components maintain identical regulatory compliance (RoHS, ECCN EAR99) and share the same HTSUS classification. The LPN-RK-50SP is currently in active production status, ensuring availability for new installations and replacement requirements. Selection of the LPN-RK-50SP eliminates obsolescence risk while maintaining electrical and mechanical compatibility within the specified amperage rating of 50/250.

Frequently Asked Questions (FAQ)

Q: Can the LPN-RK-50SP directly replace the LKN-50 in existing installations?

A: Yes. Both components share identical amperage ratings (50/250), regulatory classifications (ECCN EAR99, HTSUS 8536.10.0040), and RoHS compliance status. The LPN-RK-50SP is the manufacturer-recommended substitute.

Q: What is the primary difference between the LKN-50 and LPN-RK-50SP?

A: The LKN-50 is a Super Lag Renewable Link design, while the LPN-RK-50SP is a Low Peak Dual Element fuse. Both are rated for 50/250 amperes and manufactured by Eaton - Bussmann Electrical Division.

Q: Why is the LKN-50 listed as obsolete?

A: The LKN-50 has been discontinued by the manufacturer. The LPN-RK-50SP represents the active product line equivalent for this amperage rating.

Q: Are there packaging differences between these parts?

A: The LKN-50 uses standard packaging, while the LPN-RK-50SP is supplied in bulk packaging. This does not affect electrical or mechanical compatibility.

Q: Do both parts meet RoHS compliance requirements?

A: Yes. Both the LKN-50 and LPN-RK-50SP are RoHS compliant and carry identical ECCN and HTSUS classifications.