Equivalent & Substitute Parts for BK/ABC-V-8 Ceramic Fuse Cartridge

Part Overview

The BK/ABC-V-8 is an 8 A ceramic fuse cartridge rated for 250 V AC and 125 V DC operation. This component is classified as obsolete, which necessitates identification of active equivalent and substitute parts for ongoing system maintenance and new designs. The fuse features fast-blow response characteristics and is housed in a 3AB/3AG form factor with axial through-hole mounting. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives within the same application category.

Substiute Parts

BK/ABC-V-8

Eaton - Electronics DivisionIn Stock: 785BK/ABC-V-8 Datasheet

Current PartRFQ

BK/ABC-V-8-R

Eaton - Electronics DivisionIn Stock: 939BK/ABC-V-8-R Datasheet

DirectRFQ

ABC-V-8-R

Eaton - Electronics DivisionIn Stock: 804ABC-V-8-R Datasheet

Parametric EquivalentRFQ

BK/GBB-V-8-R

Eaton - Electronics DivisionIn Stock: 1122BK/GBB-V-8-R Datasheet

Parametric EquivalentRFQ

GBB-V-8-R

Eaton - Electronics DivisionIn Stock: 725GBB-V-8-R Datasheet

Parametric EquivalentRFQ

0324008.HXP

Littelfuse Inc.In Stock: 8510324008.HXP Datasheet

DirectRFQ

0324008.MXP

Littelfuse Inc.In Stock: 41750324008.MXP Datasheet

DirectRFQ

0324008.VXP

Littelfuse Inc.In Stock: 9760324008.VXP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BK/ABC-V-8 is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

• Current Rating: 8 A
• Voltage Rating - AC: 250 V
• Voltage Rating - DC: 125 V
• Fuse Type: Cartridge, Ceramic
• Response Time: Fast Blow
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (Axial)
• Mounting Type: Through Hole

Acceptable Variation Parameters:

• Breaking Capacity: Variations permitted when equal to or exceeding rated voltage capacity
• DC Cold Resistance: Minor variations acceptable within component tolerance
• Melting I²t: Variations acceptable within fast-blow classification
• Approval Agencies: Substitutes must maintain CSA and/or UL certification as minimum requirement
• RoHS Status: Active parts comply with ROHS3; obsolete part is non-compliant

All substitute parts listed maintain identical electrical performance characteristics and physical form factor compatibility with the original BK/ABC-V-8 specification.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation - Eaton Direct Equivalents:

The BK/ABC-V-8-R and ABC-V-8-R represent the most direct path for replacement of the obsolete BK/ABC-V-8. Both parts are manufactured by Eaton - Electronics Division, maintain identical electrical specifications, and are ROHS3 compliant. The BK/ABC-V-8-R is the preferred choice as it maintains the BK prefix designation consistent with the original part family. Both parts carry active product status and CSA/UL certification.

Secondary Recommendation - Eaton GBB Series:

The BK/GBB-V-8-R and GBB-V-8-R provide functional equivalence with enhanced DC breaking capacity (110kA and 10kA respectively). These parts are suitable for applications requiring higher fault current protection. Both maintain ROHS3 compliance and active product status. Selection between these variants depends on system DC fault current requirements.

Alternative Recommendation - Littelfuse 324 Series:

The 0324008.HXP, 0324008.MXP, and 0324008.VXP represent cross-manufacturer alternatives from Littelfuse Inc. These parts maintain identical electrical ratings and fast-blow response characteristics. The Littelfuse parts feature higher AC breaking capacity (750A) and extended operating temperature range (-55°C to 125°C). All three variants are ROHS3 compliant with active product status. Selection among these three variants is determined by specific approval agency requirements and supply chain considerations.

Compliance Considerations:

All recommended substitute parts maintain CSA and UL certification. The Littelfuse variants provide additional certifications (CE, K-MARK, PSE, KC) suitable for international applications. All active parts comply with ROHS3 requirements, addressing environmental compliance for the obsolete non-compliant original part.

Frequently Asked Questions (FAQ)

Q: Can the BK/ABC-V-8 be directly replaced with BK/ABC-V-8-R?

A: Yes. The BK/ABC-V-8-R maintains identical electrical specifications (8 A, 250 V AC, 125 V DC), response time (fast-blow), and physical form factor (3AB/3AG, 1/4" x 1-1/4"). The primary difference is product status (active versus obsolete) and RoHS compliance (ROHS3 compliant versus non-compliant). This is a direct equivalent replacement.

Q: What is the difference between the Eaton ABC series and GBB series fuses?

A: Both series maintain identical current ratings, voltage ratings, and response characteristics. The primary distinction is DC breaking capacity: ABC series provides 10kA DC breaking capacity, while BK/GBB-V-8-R provides 110kA DC breaking capacity. Selection depends on the maximum DC fault current in the application circuit.

Q: Are Littelfuse 0324008 series fuses compatible with Eaton fuse holders?

A: The Littelfuse 0324008 series maintains the same 3AB/3AG form factor and 1/4" x 1-1/4" physical dimensions as the Eaton parts. Physical compatibility with existing fuse holders is confirmed. Electrical performance is equivalent across all specified parameters.

Q: Why do the Littelfuse parts have higher AC breaking capacity (750A) compared to Eaton parts (200A)?

A: Breaking capacity represents the maximum fault current the fuse can safely interrupt without rupturing the fuse body. Higher breaking capacity indicates enhanced fault current handling capability. Both ratings exceed the 8 A nominal current and are suitable for the same applications. Selection is based on system fault current requirements.

Q: Which substitute part should be selected for new designs?

A: For new designs, either BK/ABC-V-8-R (Eaton) or 0324008.MXP (Littelfuse) are recommended. Both are active products with ROHS3 compliance and established supply chain availability. BK/ABC-V-8-R maintains design continuity with the original part family. 0324008.MXP provides cross-manufacturer redundancy and extended operating temperature range.

Q: Are all substitute parts RoHS compliant?

A: All active substitute parts listed are ROHS3 compliant. The original BK/ABC-V-8 is non-compliant. Compliance with RoHS3 requirements is a key advantage of transitioning to any of the recommended substitute parts.

Q: What is the significance of the DC Cold Resistance specification?

A: DC Cold Resistance represents the fuse element resistance at room temperature. Minor variations (0.0136 Ω to 0.1144 Ω) are within acceptable tolerance for ceramic fuse cartridges and do not affect functional performance or substitution compatibility. This parameter is provided for detailed circuit analysis where fuse voltage drop is a design consideration.