BM6033B Equivalent & Substitute Parts

Part Overview

The BM6033B is a 30A 600V 3-circuit cartridge fuse block manufactured by Eaton - Bussmann Electrical Division, designed for chassis mount applications. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing maintenance, repair, and new design implementations where this specific model is no longer available through standard distribution channels.

Substiute Parts

BM6033B

Eaton - Bussmann Electrical DivisionIn Stock: 1028BM6033B Datasheet

Current PartRFQ

BMM603-3C

Eaton - Bussmann Electrical DivisionIn Stock: 961BMM603-3C Datasheet

DirectRFQ

L60030M3C

LittelfuseIn Stock: 725L60030M3C Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the BM6033B is determined by strict equivalence across the following critical parameters:

• Current Rating: 30 A
• Voltage Rating: 600V
• Number of Circuits: 3
• Fuse Type: Cartridge
• Fuse Size: 0.394" Dia x 1.496" L (10mm x 38mm)
• Fuseholder Type: Block

The substitute parts identified maintain these core electrical and mechanical specifications, ensuring functional compatibility in applications originally designed for the BM6033B. Variations in termination style (solder lug versus box lug) and product status (active versus obsolete) do not affect the core substitution relationship.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts maintain electrical and mechanical equivalence to the BM6033B across all critical parameters. Selection between BMM603-3C and L60030M3C should be based on the following factors:

BMM603-3C (Eaton - Bussmann): This direct manufacturer substitute from Eaton maintains product lineage continuity. It carries active product status and RoHS compliance certification. The wire connector termination style differs from the original solder lug configuration and requires evaluation for circuit board integration compatibility.

L60030M3C (Littelfuse): This cross-manufacturer substitute provides an alternative from Littelfuse with active product status and ROHS3 compliance. The box lug termination style offers a different connection interface compared to the original solder lug design. REACH unaffected status is documented.

Both parts are suitable for direct substitution where the termination style change can be accommodated in the application design. The choice between manufacturers should consider supply chain availability, existing qualification history, and termination interface requirements.

Frequently Asked Questions (FAQ)

Q: Can the BMM603-3C or L60030M3C be used as direct drop-in replacements for the BM6033B?

A: Both parts maintain electrical equivalence (30A, 600V, 3-circuit, 10mm x 38mm cartridge fuse block). However, termination style differs: the BM6033B uses solder lug termination, while BMM603-3C uses wire connector and L60030M3C uses box lug. Circuit board or chassis integration must accommodate the termination interface change.

Q: What is the significance of the product status difference?

A: The BM6033B is classified as obsolete, meaning it is no longer manufactured or supported by Eaton. Both substitute parts carry active product status, indicating current manufacturing and availability through authorized distributors.

Q: Are there compliance differences between the three parts?

A: The BM6033B compliance status is not fully specified in available documentation. BMM603-3C is RoHS compliant. L60030M3C is ROHS3 compliant and REACH unaffected. Applications requiring specific compliance certifications should verify alignment with system requirements.

Q: Does the fuse size specification guarantee mechanical compatibility?

A: Yes. All three parts accept 5AG, 13/32" x 1-1/2" (Midget) cartridge fuses. The 10mm x 38mm fuse block cavity is standardized across all three parts, ensuring mechanical interchangeability of fuse elements.

Q: What packaging formats are available?

A: BM6033B is available in standard packaging. BMM603-3C is supplied in bulk packaging. L60030M3C is supplied in box packaging. Packaging format does not affect electrical or mechanical performance.