A4BQ2000 Equivalent & Substitute Parts

Part Overview

The A4BQ2000 is a low-tension (L) fuse rated for 600V and 2000A applications, manufactured by Mersen USA Newburyport-MA L.L.C. This component is designed for high-current electrical protection in industrial and power distribution systems. The part maintains Active product status with ROHS3 compliance. Substitute parts are identified based on matching electrical ratings, mechanical compatibility, and functional equivalence in fuse protection applications.

Substiute Parts

A4BQ2000

Mersen USA Newburyport-MA L.L.C.In Stock: 1162A4BQ2000 Datasheet

Current PartRFQ

KRP-C-2000SP

Eaton - Bussmann Electrical DivisionIn Stock: 1016KRP-C-2000SP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the A4BQ2000 are identified based on the following critical parameters:

• Voltage Rating: 600V AC minimum requirement
• Current Rating: 2000A (2kA) equivalence
• Fuse Class: L-class fuse designation
• Functional Type: Cartridge or equivalent fuse construction
• Product Status: Active availability
• Compliance: RoHS compliance status

The KRP-C-2000SP from Eaton - Bussmann Electrical Division meets these substitution criteria through matching voltage (600 VAC), current (2kA), and fuse class (L) specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the A4BQ2000 and KRP-C-2000SP are Active products with current RoHS compliance certifications. Selection between these parts should be based on:

• Electrical Equivalence: Both parts satisfy 600V, 2000A, and L-class fuse requirements
• Compliance Requirements: A4BQ2000 carries ROHS3 compliance; KRP-C-2000SP carries RoHS compliance. Both meet regulatory standards for their respective applications
• Mechanical Compatibility: The KRP-C-2000SP specifies bolt mount construction with defined dimensions (4.600" Dia x 3.750" L). Mechanical fit must be confirmed for the application
• Packaging Considerations: A4BQ2000 is supplied in Box packaging; KRP-C-2000SP is supplied in Bulk packaging. Procurement quantities and handling requirements may differ
• Certifications: KRP-C-2000SP lists CE, CSA, and UL approvals; verify that required certifications align with application standards

Frequently Asked Questions (FAQ)

Q: Can KRP-C-2000SP directly replace A4BQ2000 in all applications?

A: Both parts meet the core electrical requirements (600V, 2000A, L-class). However, mechanical compatibility must be confirmed. The KRP-C-2000SP is specified as bolt mount with dimensions 4.600" Dia x 3.750" L. Verify that the mounting configuration and physical dimensions are compatible with your installation before substitution.

Q: What is the difference in voltage ratings between these parts?

A: The A4BQ2000 is rated for 600V. The KRP-C-2000SP is rated for 600 VAC and 300 VDC. The AC rating matches; the DC rating is an additional capability of the substitute part.

Q: Are there compliance differences between these parts?

A: The A4BQ2000 is ROHS3 compliant. The KRP-C-2000SP is RoHS compliant. Both meet regulatory requirements. The KRP-C-2000SP additionally lists CE, CSA, and UL certifications. Confirm that required certifications for your application are present in the selected part.

Q: How do packaging differences affect procurement?

A: The A4BQ2000 is supplied in Box packaging; the KRP-C-2000SP is supplied in Bulk packaging. This affects handling, storage, and minimum order quantities. Coordinate with your procurement process to ensure packaging compatibility with your supply chain requirements.

Q: What is the breaking capacity specification?

A: The KRP-C-2000SP specifies breaking capacity of 300kA AC and 100kA DC at rated voltage. This specification is not provided for the A4BQ2000. Breaking capacity defines the maximum fault current the fuse can safely interrupt. Confirm that the breaking capacity of any substitute part meets your system requirements.