Eaton 2499 Fuse Block Cartridge 250V 15A Chassis Mount - Equivalent & Substitute Parts

Part Overview

The Eaton 2499 is a single-circuit cartridge fuse block designed for chassis mount applications at 250V with a 15A current rating. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing maintenance, repair, and system design applications. The fuse block accommodates standard 3AG cartridge fuses (0.25" Dia x 1.26" L) and features quick connect termination with spring brass contacts finished in tin-lead.

Substiute Parts

2499

Eaton - Electronics DivisionIn Stock: 23382499 Datasheet

Current PartRFQ

S-8203-1-R

Eaton - Electronics DivisionIn Stock: 791S-8203-1-R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Eaton 2499 is determined by strict alignment of the following critical parameters:

Mechanical Compatibility:

• Fuse size must match: 0.25" Dia x 1.26" L (6.35mm x 32mm)
• Mounting configuration must be chassis mount
• Fuseholder type must be block configuration
• Termination style must be quick connect

Electrical Compatibility:

• Number of circuits must be 1
• Fuse type must be cartridge
• Compatible with 3AG, 1/4" x 1-1/4" (SFE-20) fuses

Voltage Consideration: The substitute part S-8203-1-R operates at 600V, which exceeds the 250V rating of the original 2499. In electrical systems, a component rated for higher voltage can be used in lower voltage applications without functional degradation, provided all other mechanical and electrical parameters align. The 600V rating of S-8203-1-R provides additional safety margin in 250V circuits.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: Eaton S-8203-1-R

The S-8203-1-R is the direct functional equivalent for the obsolete Eaton 2499. Selection is based on the following engineering criteria:

1. Mechanical Alignment: All physical dimensions, mounting configuration, and fuse accommodation specifications are identical.

2. Electrical Compatibility: The S-8203-1-R operates at 600V, which is rated above the 250V requirement of the original circuit. This higher voltage rating does not create incompatibility; rather, it provides additional electrical safety margin. The component will function correctly in 250V applications.

3. Product Status: The S-8203-1-R is classified as Active, ensuring ongoing availability and manufacturing support. The original 2499 is obsolete, making substitution necessary for new procurement.

4. Compliance: The S-8203-1-R carries RoHS Compliant certification, meeting modern environmental and regulatory standards. Both parts share identical ECCN (EAR99) and HTSUS (8538.90.8180) classifications.

5. Contact Materials: Both parts use tin-lead finished contacts on spring metals (brass vs. bronze), providing equivalent electrical performance and reliability.

Frequently Asked Questions (FAQ)

Q: Can the Eaton S-8203-1-R be used as a direct replacement for the Eaton 2499 in a 250V circuit?

A: Yes. The S-8203-1-R is mechanically and electrically compatible with the 2499. Although rated for 600V, it operates correctly in 250V applications. All critical parameters—fuse size, mounting type, termination style, and circuit configuration—are identical.

Q: Why does the substitute part have a higher voltage rating (600V vs. 250V)?

A: The S-8203-1-R is designed for broader application across multiple voltage classes. A component rated for higher voltage can be safely used in lower voltage circuits without performance degradation. This provides additional electrical safety margin.

Q: Are the contact materials interchangeable between the 2499 (spring brass) and S-8203-1-R (spring bronze)?

A: Yes. Both spring brass and spring bronze are suitable contact materials for cartridge fuse blocks. Both are finished in tin-lead and provide equivalent electrical conductivity and reliability for this application.

Q: What fuses are compatible with the S-8203-1-R substitute?

A: The S-8203-1-R accommodates the same fuse specification as the original 2499: 3AG cartridge fuses, 1/4" x 1-1/4" (SFE-20), 0.25" Dia x 1.26" L (6.35mm x 32mm).

Q: Is the S-8203-1-R available in the same packaging as the 2499?

A: The S-8203-1-R is supplied in Bulk packaging, whereas the original 2499 packaging specification is not detailed in available data. Both are single-unit components suitable for direct installation in chassis mount applications.

Q: Does the S-8203-1-R meet current environmental compliance standards?

A: Yes. The S-8203-1-R is RoHS Compliant, meeting current environmental regulations. Both parts share identical ECCN and HTSUS classifications for export and tariff purposes.