ECNR100 Equivalent & Substitute Parts

Part Overview

The ECNR100 is a 100A 250VAC cylindrical fuse cartridge manufactured by Eaton - Bussmann Electrical Division. This slow-blow cartridge fuse is designed for electrical and industrial applications requiring RK5 class protection. The part is currently active in production with 921 units in stock. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when inventory requirements necessitate alternative suppliers or series selections.

Substiute Parts

ECNR100

Eaton - Bussmann Electrical DivisionIn Stock: 994ECNR100 Datasheet

Current PartRFQ

FRN-R-100

Eaton - Bussmann Electrical DivisionIn Stock: 1164FRN-R-100 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECNR100 is determined by strict equivalence across the following critical parameters:

• Current Rating: 100A (exact match required)
• Voltage Rating: 250VAC (exact match required)
• Fuse Type: Cartridge (exact match required)
• Response Time: Slow Blow (exact match required)
• Class: RK5 (exact match required)
• Breaking Capacity: 200kA minimum at rated voltage
• Physical Dimensions: 1.060" Dia x 5.88" (26.92mm x 149.35mm) (exact match required)
• Mounting: Requires Holder (exact match required)

The FRN-R-100 meets all electrical and mechanical substitution criteria. Both parts share identical current ratings, voltage specifications, fuse classification, response characteristics, and physical dimensions. Both require external holders and carry equivalent regulatory approvals.

Parameter Comparison

Engineering Selection Recommendations

Both the ECNR100 and FRN-R-100 are active production parts from the same manufacturer with identical electrical specifications and physical dimensions. Selection between these parts should be based on:

• Inventory availability: ECNR100 has 921 units in stock; FRN-R-100 has 1133 units in stock
• Series preference: ECNR series versus Fusetron™ FRN-R series
• RoHS compliance requirement: ECNR100 is RoHS compliant; FRN-R-100 is RoHS non-compliant
• Regulatory environment: Both carry CE, CSA, and UL certifications

For applications requiring RoHS compliance, the ECNR100 is the appropriate selection. For applications without RoHS requirements, either part is functionally equivalent.

Frequently Asked Questions (FAQ)

Q: Can FRN-R-100 be used as a direct replacement for ECNR100?

A: Yes. Both parts are 100A 250VAC RK5 class slow-blow cartridge fuses with identical physical dimensions (1.060" Dia x 5.88"), breaking capacity (200kA), and regulatory approvals (CE, CSA, UL). Both require external holders and are manufactured by Eaton - Bussmann Electrical Division.

Q: What is the primary difference between ECNR100 and FRN-R-100?

A: The primary difference is RoHS compliance status. ECNR100 is RoHS compliant; FRN-R-100 is RoHS non-compliant. Electrically and mechanically, both parts are equivalent.

Q: Are the physical dimensions identical?

A: Yes. Both parts measure 1.060" diameter by 5.88" length (26.92mm x 149.35mm). Both use cylindrical/cartridge packaging with identical mounting requirements.

Q: Do both parts require the same holder?

A: Yes. Both parts require an external fuse holder. The identical physical dimensions ensure compatibility with the same holder assemblies.

Q: Which part should be selected for new designs?

A: For new designs subject to RoHS regulations, select ECNR100. For applications without RoHS requirements, either part is acceptable based on availability and series preference.

Q: Are the breaking capacities equivalent?

A: Both parts have 200kA breaking capacity at rated voltage. FRN-R-100 additionally specifies 20kA DC breaking capacity, which is supplementary information not affecting AC circuit equivalence.