Eaton BK/HTB-46M Cartridge Fuse Holder Equivalent & Substitute Parts

Part Overview

The Eaton BK/HTB-46M is a 16 A, 250V single-circuit cartridge fuse holder designed for panel mount applications with 5mm x 20mm fuse compatibility. This component is classified as obsolete, necessitating identification of active equivalent parts for continued system support and procurement. The HTB series fuse holders provide quick-connect termination at 0.250" (6.3mm) spacing for standard electrical panel installations.

Substiute Parts

BK/HTB-46M

Eaton - Electronics DivisionIn Stock: 1148BK/HTB-46M Datasheet

Current PartRFQ

BK/HTB-46M-R

Eaton - Electronics DivisionIn Stock: 1003BK/HTB-46M-R Datasheet

DirectRFQ

HTB-46M-R

Eaton - Electronics DivisionIn Stock: 1190HTB-46M-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BK/HTB-46M is determined by strict equivalence across the following parameters:

• Current Rating: 16 A (exact match required)
• Voltage Rating: 250V (exact match required)
• Fuse Size: 5mm x 20mm (exact match required)
• Fuse Type: Cartridge (exact match required)
• Number of Circuits: 1 (exact match required)
• Mounting Type: Panel Mount (exact match required)
• Termination Style: Quick Connect - 0.250" (6.3mm) (exact match required)
• Series: HTB (same product family)

The identified substitute parts BK/HTB-46M-R and HTB-46M-R meet all electrical and mechanical parameters. Both are active products within the same HTB series, providing direct functional equivalence to the obsolete BK/HTB-46M.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: HTB-46M-R

The HTB-46M-R is the recommended substitute for the obsolete BK/HTB-46M. This part maintains identical electrical and mechanical specifications while offering active product status. The HTB-46M-R carries ROHS3 compliance and REACH Unaffected designation, meeting current regulatory requirements for new system designs and procurement.

Secondary Substitute: BK/HTB-46M-R

The BK/HTB-46M-R provides an alternative substitute with equivalent functionality. This part is RoHS Compliant and maintains the same electrical and mechanical parameters. The BK/HTB-46M-R includes horizontal orientation specification, which may be relevant for specific panel layout requirements.

Both substitute parts are manufactured by Eaton - Electronics Division and are classified as active products with confirmed inventory availability.

Frequently Asked Questions (FAQ)

Q: Can HTB-46M-R directly replace BK/HTB-46M in existing installations?

A: Yes. The HTB-46M-R meets all electrical parameters (16 A, 250V), mechanical specifications (5mm x 20mm cartridge fuse compatibility), and termination requirements (Quick Connect - 0.250") of the BK/HTB-46M. Panel mount configuration and single-circuit design are identical.

Q: What is the difference between BK/HTB-46M-R and HTB-46M-R?

A: Both parts are functionally equivalent with identical electrical and mechanical specifications. The primary difference is regulatory compliance: HTB-46M-R carries ROHS3 Compliant and REACH Unaffected designations, while BK/HTB-46M-R is RoHS Compliant. Selection depends on specific regulatory requirements for the application.

Q: Are there orientation differences between the substitute parts?

A: BK/HTB-46M-R specifies horizontal orientation. HTB-46M-R does not specify orientation in the provided data. For applications with specific orientation requirements, verify mounting compatibility with the selected substitute.

Q: What fuse types are compatible with these holders?

A: All three parts (BK/HTB-46M, BK/HTB-46M-R, and HTB-46M-R) accept 5mm x 20mm cartridge fuses rated for 16 A at 250V operation.

Q: Is the quick-connect termination identical across all three parts?

A: Yes. All three parts use Quick Connect - 0.250" (6.3mm) termination, ensuring compatibility with standard panel wiring configurations.