ECNR30 Equivalent & Substitute Parts

Part Overview

The ECNR30 is a 30A 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 RK5 class protection with a breaking capacity of 200kA at rated voltage. The part is currently active in production with 965 units in stock. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to inventory availability, application-specific compliance needs, or design standardization across product lines.

Substiute Parts

ECNR30

Eaton - Bussmann Electrical DivisionIn Stock: 1023ECNR30 Datasheet

Current PartRFQ

FRN-R-30

Eaton - Bussmann Electrical DivisionIn Stock: 655FRN-R-30 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECNR30 is determined by strict equivalence across the following critical parameters:

• Current Rating: 30A (exact match required)
• Voltage Rating: 250 VAC / 125 VDC (exact match required)
• Fuse Type: Cartridge (exact match required)
• Response Time: Slow Blow (exact match required)
• Class: RK5 (exact match required)
• Physical Dimensions: 0.560" Dia x 2.000" L (exact match required)
• Mounting Configuration: Requires Holder (exact match required)

The FRN-R-30 meets all electrical and mechanical substitution criteria, maintaining identical current, voltage, fuse type, response characteristics, and physical form factor. Both parts are manufactured by Eaton - Bussmann Electrical Division and carry equivalent international approvals.

Parameter Comparison

Engineering Selection Recommendations

The FRN-R-30 is a direct electrical and mechanical equivalent to the ECNR30. Both parts are active products from the same manufacturer with identical current, voltage, fuse class, and physical specifications. Selection between these parts should be based on compliance requirements specific to the end application.

The ECNR30 carries RoHS Compliant status, making it suitable for applications subject to RoHS directives. The FRN-R-30 is RoHS non-compliant and should be selected only when RoHS compliance is not a requirement. Both parts maintain equivalent international certifications (CE, CSA, UL) and are suitable for electrical and industrial applications requiring RK5 class protection.

Frequently Asked Questions (FAQ)

Q: Can the FRN-R-30 be used as a direct replacement for the ECNR30?

A: The FRN-R-30 is electrically and mechanically equivalent to the ECNR30. Both parts have identical current ratings (30A), voltage ratings (250 VAC / 125 VDC), fuse class (RK5), response time (Slow Blow), and physical dimensions (0.560" Dia x 2.000" L). The primary difference is RoHS compliance status. Selection depends on whether RoHS compliance is required for your application.

Q: What does RK5 class mean for these fuses?

A: RK5 is a fuse class designation that defines the electrical characteristics and breaking capacity of the fuse. Both the ECNR30 and FRN-R-30 are RK5 class fuses with a 200kA breaking capacity at rated voltage, suitable for industrial electrical protection applications.

Q: Are these fuses interchangeable in the same holder?

A: Yes. Both the ECNR30 and FRN-R-30 have identical physical dimensions (0.560" Dia x 2.000" L) and require the same cartridge fuse holder. They are mechanically interchangeable.

Q: What is the difference between the 250 VAC and 125 VDC ratings?

A: These fuses are rated for operation in both AC and DC circuits. The 250 VAC rating applies to alternating current applications, while the 125 VDC rating applies to direct current applications. Both ratings are active simultaneously for this part.

Q: Why would I choose one part over the other if they are equivalent?

A: If your application or end-product must comply with RoHS directives, select the ECNR30 (RoHS Compliant). If RoHS compliance is not required, either part is suitable. Inventory availability may also influence selection between the two active products.