Equivalent & Substitute Parts for BK/ABC-1

Part Overview

The BK/ABC-1 is a 1 A, 250 V AC / 125 V DC ceramic cartridge fuse with fast-blow response characteristics, designed for 3AB and 3AG holder applications. This component is classified as obsolete, which necessitates identification of active equivalent and substitute parts to maintain circuit protection functionality in ongoing applications and new designs. The fuse features a breaking capacity of 35 A AC and 10 kA DC, with CSA and UL approval certifications.

Substiute Parts

BK/ABC-1

Eaton - Electronics DivisionIn Stock: 905BK/ABC-1 Datasheet

Current PartRFQ

BK/ABC-1-R

Eaton - Electronics DivisionIn Stock: 1353BK/ABC-1-R Datasheet

DirectRFQ

ABC-1-R

Eaton - Electronics DivisionIn Stock: 988ABC-1-R Datasheet

Parametric EquivalentRFQ

BK/GBB-1-R

Eaton - Electronics DivisionIn Stock: 1054BK/GBB-1-R Datasheet

Parametric EquivalentRFQ

GBB-1-R

Eaton - Electronics DivisionIn Stock: 1118GBB-1-R Datasheet

Parametric EquivalentRFQ

0001.1024

SCHURTER Inc.In Stock: 13410001.1024 Datasheet

SimilarRFQ

0314001.HXP

Littelfuse Inc.In Stock: 15090314001.HXP Datasheet

Parametric EquivalentRFQ

0314001.MXP

Littelfuse Inc.In Stock: 19970314001.MXP Datasheet

Parametric EquivalentRFQ

0314001.VXP

Littelfuse Inc.In Stock: 9110314001.VXP Datasheet

Parametric EquivalentRFQ

0332001.HXP

Littelfuse Inc.In Stock: 8040332001.HXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BK/ABC-1 is determined by strict equivalence across the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Current Rating: 1 A (exact match required)
• Voltage Rating - AC: 250 V (exact match required)
• Voltage Rating - DC: 125 V (exact match required)
• Fuse Type: Cartridge, Ceramic (exact match required)
• Response Time: Fast Blow (exact match required)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (exact match required)
• Mounting Type: Requires Holder (exact match required)

Substitution Categories:

Direct Manufacturer Equivalents (Eaton - Electronics Division): Parts BK/ABC-1-R and ABC-1-R are direct successors from the same manufacturer, maintaining identical electrical specifications and holder compatibility. Both are active products with RoHS3 compliance.

Parametric Equivalents (Eaton - Electronics Division): Parts BK/GBB-1-R and GBB-1-R belong to the GBB series and meet all primary substitution criteria. Both are active products with enhanced breaking capacity specifications and RoHS3 compliance.

Parametric Equivalents (Littelfuse Inc.): Parts 0314001.HXP, 0314001.MXP, and 0314001.VXP from the 314 series satisfy all primary substitution criteria. All three are active products with extended operating temperature ranges (-55°C to 125°C) and multiple approval certifications (CE, CSA, PSE, UL).

Parametric Equivalent (Littelfuse Inc.): Part 0332001.HXP from the 332 series meets all primary substitution criteria but is classified as obsolete. This part is included for reference in legacy system documentation.

Similar Part (SCHURTER Inc.): Part 0001.1024 is a glass cartridge fuse that differs in fuse type (glass versus ceramic) and lacks DC voltage rating specification. This part is classified as similar but not a direct substitute due to material composition differences.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation - Direct Manufacturer Equivalents:

BK/ABC-1-R and ABC-1-R are the preferred substitutes for BK/ABC-1. Both parts are manufactured by Eaton - Electronics Division and maintain identical electrical and mechanical specifications. These parts are active products with RoHS3 compliance, addressing regulatory requirements for new designs and component replenishment. Both carry CSA and UL certifications consistent with the original part.

Secondary Recommendation - Eaton GBB Series:

BK/GBB-1-R and GBB-1-R are active Eaton products that satisfy all primary substitution criteria. GBB-1-R offers enhanced breaking capacity at 200 A AC, providing additional margin in high-fault-current applications. Both parts are RoHS3 compliant and carry CSA and UR certifications. These parts are suitable for applications where the original BK/ABC-1 specifications are met and enhanced performance characteristics are beneficial.

Tertiary Recommendation - Littelfuse 314 Series:

0314001.HXP, 0314001.MXP, and 0314001.VXP are active Littelfuse products that meet all primary substitution criteria. All three parts feature extended operating temperature ranges (-55°C to 125°C) and multiple approval certifications (CE, CSA, PSE, UL). These parts are suitable for applications requiring broader temperature performance and multi-regional compliance. All three are RoHS3 compliant.

Not Recommended for Direct Substitution:

0332001.HXP is classified as obsolete and should not be selected for new designs or ongoing applications requiring long-term component availability.

0001.1024 is a glass cartridge fuse from SCHURTER Inc. and differs fundamentally in fuse material composition. This part lacks specified DC voltage rating and is classified as obsolete. It is not suitable as a direct substitute for the ceramic cartridge BK/ABC-1.

Frequently Asked Questions (FAQ)

Q: Can BK/ABC-1-R be used as a direct replacement for BK/ABC-1?

A: Yes. BK/ABC-1-R is a direct equivalent manufactured by Eaton - Electronics Division with identical electrical specifications (1 A, 250 V AC, 125 V DC), fuse type (ceramic cartridge), response time (fast blow), and package dimensions (3AB, 3AG, 1/4" x 1-1/4"). Both parts require the same holder. BK/ABC-1-R is an active product with RoHS3 compliance.

Q: What is the difference between ABC-1-R and BK/ABC-1-R?

A: Both parts are manufactured by Eaton - Electronics Division and meet identical electrical and mechanical specifications. The primary difference is the part number designation. Both are active products with RoHS3 compliance and CSA/UL certifications. Selection between these two parts should be based on internal part numbering systems and inventory management practices.

Q: Are Littelfuse 314 series parts (0314001.HXP, 0314001.MXP, 0314001.VXP) compatible with the original BK/ABC-1 application?

A: Yes. All three Littelfuse 314 series parts meet the primary substitution criteria: 1 A current rating, 250 V AC / 125 V DC voltage ratings, ceramic cartridge fuse type, fast-blow response, and 3AB/3AG package compatibility. These parts feature extended operating temperature ranges (-55°C to 125°C) and multiple certifications (CE, CSA, PSE, UL). All are RoHS3 compliant and active products.

Q: What is the significance of the breaking capacity differences among substitute parts?

A: Breaking capacity indicates the maximum fault current the fuse can safely interrupt at rated voltage. BK/ABC-1 specifies 35 A AC and 10 kA DC. Substitute parts from Eaton (BK/ABC-1-R, ABC-1-R) maintain these specifications. Eaton GBB-1-R provides 200 A AC breaking capacity. Littelfuse 314 series parts provide 100 A AC breaking capacity. Higher breaking capacity provides additional safety margin in high-fault-current circuits but does not affect normal operation at rated current levels.

Q: Can 0001.1024 (SCHURTER glass fuse) replace BK/ABC-1?

A: No. 0001.1024 is a glass cartridge fuse, whereas BK/ABC-1 is a ceramic cartridge fuse. Additionally, 0001.1024 does not specify a DC voltage rating, and its breaking capacity (1.5 kA) is significantly lower than BK/ABC-1 (10 kA DC). This part is classified as obsolete and is not suitable for direct substitution.

Q: Why is 0332001.HXP listed if it is obsolete?

A: 0332001.HXP is included in the substitute parts list for reference and documentation purposes in legacy system records. This part meets all primary substitution criteria but is classified as obsolete. For new designs and ongoing applications, active alternatives such as BK/ABC-1-R, ABC-1-R, or Littelfuse 314 series parts are recommended.

Q: Are all substitute parts RoHS3 compliant?

A: All active substitute parts listed (BK/ABC-1-R, ABC-1-R, BK/GBB-1-R, GBB-1-R, 0314001.HXP, 0314001.MXP, 0314001.VXP) are RoHS3 compliant. The original BK/ABC-1 is RoHS non-compliant. Substitution with RoHS3 compliant parts addresses regulatory requirements for new designs and component replenishment in regulated markets.

Q: Do all substitute parts fit in the same 3AB/3AG holder?

A: Yes. All substitute parts specified in this document maintain the identical package dimensions of 0.250" diameter x 1.250" length (6.35mm x 31.75mm) and are compatible with 3AB and 3AG holders. Physical installation requires no modifications to existing holder assemblies.

Q: What certifications should I verify for my specific application?

A: The original BK/ABC-1 carries CSA and UL certifications. Direct equivalents BK/ABC-1-R and ABC-1-R maintain these certifications. Eaton GBB series parts carry CSA and UR certifications. Littelfuse 314 series parts carry CE, CSA, PSE, and UL certifications. Verify that the selected substitute part carries certifications required by your application's regulatory framework and end-use market.