LKN-70 Equivalent & Substitute Parts

Part Overview

The LKN-70 is a Super Lag Renewable Link fuse manufactured by Eaton - Bussmann Electrical Division, rated for 70/250 amperes. 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 of the LKN-70 necessitates sourcing of substitute components that maintain electrical and mechanical compatibility with original circuit protection requirements.

Substiute Parts

LKN-70

Eaton - Bussmann Electrical DivisionIn Stock: 1055LKN-70 Datasheet

Current PartRFQ

LPN-RK-70SP

Eaton - Bussmann Electrical DivisionIn Stock: 853LPN-RK-70SP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The LPN-RK-70SP is identified as the manufacturer-recommended substitute for the LKN-70. Substitution eligibility is determined by the following parameters:

• Ampere rating compatibility (70 ampere class)
• Voltage rating alignment (250 volt class)
• Fuse technology classification (dual element design for time-delay protection)
• RoHS compliance status (both parts RoHS Compliant)
• ECCN and HTSUS classification alignment (both EAR99 and 8536.10.0040)
• Manufacturer continuity (both Eaton - Bussmann Electrical Division)

Parameter Comparison

Engineering Selection Recommendations

The LPN-RK-70SP is the manufacturer-designated substitute for the obsolete LKN-70. Both components maintain identical ECCN and HTSUS classifications, confirming regulatory alignment. The LPN-RK-70SP carries active product status, ensuring ongoing availability and manufacturer support.

Both parts satisfy RoHS compliance requirements. The transition from the LKN-70 to the LPN-RK-70SP is supported by the manufacturer and represents the current production equivalent for this ampere and voltage class.

Frequently Asked Questions (FAQ)

Q: Why is the LKN-70 no longer available? A: The LKN-70 has reached obsolete status. The LPN-RK-70SP is the active production substitute designated by Eaton - Bussmann Electrical Division.

Q: Are the LKN-70 and LPN-RK-70SP electrically compatible? A: Both components are fuses rated for 70/250 amperes, manufactured by the same supplier, and share identical ECCN and HTSUS classifications, confirming electrical and regulatory compatibility.

Q: What is the difference between the LKN-70 and LPN-RK-70SP? A: The LKN-70 is a Super Lag Renewable Link design, while the LPN-RK-70SP is a Low Peak Dual Element fuse. Both provide time-delay protection at the same ampere rating and voltage class.

Q: Are both parts RoHS compliant? A: Yes. Both the LKN-70 and LPN-RK-70SP are RoHS Compliant.

Q: What packaging is available for the LPN-RK-70SP? A: The LPN-RK-70SP is supplied in Bulk packaging.