Equivalent & Substitute Parts for BK1/ABC-30NX-R

Part Overview

The BK1/ABC-30NX-R is a 30 A ceramic cartridge fuse rated for 250 V AC and 125 V DC operation, manufactured by Eaton - Electronics Division. This fast-blow fuse is designed for use with 3AB, 3AG holders and measures 1/4" x 1-1/4" (6.35mm x 31.75mm). The component is currently active in production with 762 pieces available in stock.

Equivalent and substitute parts are identified when applications require alternative sourcing due to inventory constraints, supply chain considerations, or when design flexibility permits selection from multiple qualified manufacturers while maintaining identical electrical and mechanical performance characteristics.

Substiute Parts

BK1/ABC-30NX-R

Eaton - Electronics DivisionIn Stock: 776BK1/ABC-30NX-R Datasheet

Current PartRFQ

BK/ABC-30-R

Eaton - Electronics DivisionIn Stock: 2244BK/ABC-30-R Datasheet

Parametric EquivalentRFQ

BK/GBB-30-R

Eaton - Electronics DivisionIn Stock: 1103BK/GBB-30-R Datasheet

Parametric EquivalentRFQ

0314030.HXP

Littelfuse Inc.In Stock: 40660314030.HXP Datasheet

Parametric EquivalentRFQ

0314030.MXP

Littelfuse Inc.In Stock: 33750314030.MXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BK1/ABC-30NX-R is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Current Rating: 30 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"
• Size / Dimension: 0.250" Dia x 1.250" L (6.35mm x 31.75mm)
• Mounting Type: Requires Holder

All identified substitute parts meet these mandatory parameters. Variations in secondary parameters such as breaking capacity, melting I²t, DC cold resistance, approval agencies, and operating temperature ranges do not disqualify substitution eligibility when the primary electrical and mechanical specifications are identical.

Parameter Comparison

Engineering Selection Recommendations

All four substitute parts—BK/ABC-30-R, BK/GBB-30-R, 0314030.HXP, and 0314030.MXP—are qualified equivalents for the BK1/ABC-30NX-R based on identical electrical and mechanical specifications.

Eaton - Electronics Division Options:

BK/ABC-30-R and BK/GBB-30-R maintain manufacturer continuity with Eaton. Both are active products with established approval certifications. BK/ABC-30-R carries CSA and UL approvals, while BK/GBB-30-R carries CSA and UR approvals. Inventory availability for both options exceeds the primary part, with 2200 and 1002 pieces respectively.

Littelfuse Inc. Options:

0314030.HXP and 0314030.MXP are Littelfuse Series 314 ceramic cartridge fuses with identical electrical ratings and package specifications. Both components carry expanded approval certifications including CE, K-MARK, PSE, and UL. Operating temperature range extends to -55°C ~ 125°C. Inventory availability is highest among all options, with 4000 and 3300 pieces respectively.

Selection between these equivalents is based on supply chain requirements, approval agency preferences, and inventory availability rather than electrical performance differentiation.

Frequently Asked Questions (FAQ)

Q: Can BK/ABC-30-R be used as a direct replacement for BK1/ABC-30NX-R?

A: Yes. BK/ABC-30-R is a parametric equivalent with identical current rating (30 A), voltage ratings (250 V AC, 125 V DC), fuse type (ceramic cartridge), response time (fast blow), and package specification (3AB, 3AG, 1/4" x 1-1/4"). Both are manufactured by Eaton - Electronics Division and are ROHS3 compliant.

Q: What is the difference between the Eaton and Littelfuse substitute options?

A: All four substitutes meet identical electrical and mechanical requirements. Differences exist in approval agency certifications, breaking capacity ratings, melting I²t values, and DC cold resistance. Littelfuse options (0314030.HXP and 0314030.MXP) provide extended operating temperature range (-55°C ~ 125°C) and higher inventory availability. Selection depends on application-specific certification requirements and supply chain preferences.

Q: Are the Littelfuse 314 series fuses (0314030.HXP and 0314030.MXP) compatible with 3AB and 3AG holders?

A: Yes. Both Littelfuse parts are specified for 3AB, 3AG holder compatibility with identical physical dimensions of 0.250" Dia x 1.250" L (6.35mm x 31.75mm).

Q: What is the difference between 0314030.HXP and 0314030.MXP?

A: Both parts are Littelfuse Series 314 ceramic cartridge fuses with identical electrical specifications, package dimensions, and approval certifications. They are functionally equivalent for the BK1/ABC-30NX-R application.

Q: Can I mix different substitute parts in the same circuit or equipment?

A: All identified substitutes are parametric equivalents meeting identical electrical and mechanical specifications. Circuit design and equipment documentation should be consulted to confirm multi-source component compatibility within specific applications.

Q: What approval certifications are most relevant for my application?

A: The primary part BK1/ABC-30NX-R carries UR approval. Substitute options provide expanded certifications: BK/ABC-30-R (CSA, UL), BK/GBB-30-R (CSA, UR), and Littelfuse options (CE, K-MARK, PSE, UL). Selection should align with regional regulatory requirements and equipment certification standards.