REN-40 Equivalent & Substitute Parts

Part Overview

The REN-40 is a Super Lag Renewable Fuse manufactured by Eaton - Bussmann Electrical Division, rated for 40A at 250V. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance and component replacement in existing installations. The renewable design allows for field replacement of the fuse element while retaining the original housing and contacts.

Substiute Parts

REN-40

Eaton - Bussmann Electrical DivisionIn Stock: 1203REN-40 Datasheet

Current PartRFQ

LPN-RK-40SP

Eaton - Bussmann Electrical DivisionIn Stock: 1090LPN-RK-40SP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the REN-40 is determined by the following electrical and mechanical parameters:

• Current Rating: 40A
• Voltage Rating: 250V
• Fuse Type: Dual Element (Low Peak) technology
• Manufacturer: Eaton - Bussmann Electrical Division
• RoHS Compliance: Required
• HTSUS Classification: 8536.10.0040

The LPN-RK-40SP qualifies as a substitute based on matching current and voltage ratings, identical manufacturer origin, equivalent RoHS compliance status, and identical tariff classification. The Low Peak Dual Element design provides enhanced performance characteristics suitable for applications previously served by the renewable lag fuse design.

Parameter Comparison

Engineering Selection Recommendations

The LPN-RK-40SP is the designated manufacturer-recommended substitute for the obsolete REN-40. Both components maintain identical electrical ratings (40A, 250V) and share RoHS compliance certification. The LPN-RK-40SP carries Active product status, ensuring ongoing availability and manufacturer support. Selection of the LPN-RK-40SP is appropriate for direct replacement applications where the REN-40 is no longer procurable. Both components fall under identical HTSUS tariff classification, confirming regulatory equivalence for import and export purposes.

Frequently Asked Questions (FAQ)

Q: Can the LPN-RK-40SP directly replace the REN-40 in existing installations?

A: Yes. Both components share identical current (40A) and voltage (250V) ratings, are manufactured by the same company, and carry equivalent RoHS compliance. The LPN-RK-40SP is the manufacturer-recommended substitute.

Q: What is the primary difference between these two fuse types?

A: The REN-40 uses renewable lag fuse technology, while the LPN-RK-40SP employs Low Peak Dual Element design. Both are rated for identical electrical parameters.

Q: Are there packaging differences between these parts?

A: The REN-40 packaging specification is not provided in the technical data. The LPN-RK-40SP is supplied in Bulk packaging.

Q: Why is the REN-40 classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The LPN-RK-40SP represents the current active alternative for this application.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both components are RoHS Compliant and classified under ECCN EAR99 and HTSUS 8536.10.0040.