ECNR6 Equivalent & Substitute Parts Reference

Part Overview

The ECNR6 is a 6A cartridge fuse rated for 250 VAC and 125 VDC operation, manufactured by Eaton - Bussmann Electrical Division. This slow-blow fuse cartridge is designed for electrical and industrial applications requiring holder-mounted protection. The part maintains active product status with RoHS compliance and multiple approval certifications (CE, CSA, UL). Substitute parts are identified when identical electrical specifications, mechanical dimensions, and safety certifications align with the original component requirements.

Substiute Parts

ECNR6

Eaton - Bussmann Electrical DivisionIn Stock: 720ECNR6 Datasheet

Current PartRFQ

FRN-R-6

Eaton - Bussmann Electrical DivisionIn Stock: 692FRN-R-6 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECNR6 is determined by strict equivalence across the following critical parameters:

• Current Rating: 6A (exact match required)
• Voltage Rating: 250 VAC / 125 VDC (both values must match)
• Response Time: Slow Blow (exact match required)
• Fuse Class: RK5 (exact match required)
• Physical Dimensions: 0.560" Dia x 2.000" L (exact match required)
• Mounting Configuration: Requires Holder (exact match required)
• Approval Certifications: CE, CSA, UL (minimum compliance required)

The FRN-R-6 meets all substitution criteria as it maintains identical electrical ratings, mechanical specifications, response characteristics, and regulatory certifications as the ECNR6.

Parameter Comparison

Engineering Selection Recommendations

The FRN-R-6 cartridge fuse serves as a direct equivalent to the ECNR6 based on complete parameter alignment. Both components are manufactured by Eaton - Bussmann Electrical Division and maintain active product status with identical electrical specifications, mechanical form factors, and regulatory certifications. The FRN-R-6 is part of the Fusetron™ FRN-R series and provides equivalent protection characteristics for 6A circuits operating at 250 VAC or 125 VDC. Both parts comply with CE, CSA, and UL standards and are RoHS compliant. Selection between these parts may be based on inventory availability, lead time, or existing supply chain preferences, as functional performance is equivalent.

Frequently Asked Questions (FAQ)

Q: Can the FRN-R-6 be used as a direct replacement for the ECNR6?

A: Yes. The FRN-R-6 meets all electrical, mechanical, and certification requirements for direct substitution. Both parts share identical current ratings (6A), voltage ratings (250 VAC / 125 VDC), response time (Slow Blow), fuse class (RK5), physical dimensions (0.560" Dia x 2.000" L), and approval certifications (CE, CSA, UL).

Q: Are there any compatibility concerns with existing fuse holders?

A: No. Both the ECNR6 and FRN-R-6 are cartridge fuses with identical physical dimensions and require the same holder type. They are mechanically interchangeable.

Q: What is the difference in breaking capacity between these parts?

A: The ECNR6 specifies 200kA breaking capacity at rated voltage. The FRN-R-6 specifies 200kA AC and 20kA DC breaking capacity. Both meet or exceed the minimum breaking capacity requirements for RK5 class fuses.

Q: Are both parts RoHS compliant?

A: Yes. Both the ECNR6 and FRN-R-6 are RoHS compliant and carry identical regulatory certifications (CE, CSA, UL).

Q: Can these fuses be used in applications rated for 250 VAC only?

A: Yes. Both parts are rated for 250 VAC operation and are suitable for AC-only applications. The 125 VDC rating provides additional capability for dual-voltage systems.