Equivalent & Substitute Parts for ABC-1-1/4-R Ceramic Cartridge Fuse

Part Overview

The ABC-1-1/4-R is a 1.25 A, 250 V AC ceramic cartridge fuse manufactured by Eaton - Electronics Division. This fast-blow fuse is designed for applications requiring holder-based installation in 3AB and 3AG configurations with 1/4" x 1-1/4" dimensions. The part maintains active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical ratings, mechanical dimensions, and holder compatibility are maintained across the specified parameter set.

Substiute Parts

ABC-1-1/4-R

Eaton - Electronics DivisionIn Stock: 814ABC-1-1/4-R Datasheet

Current PartRFQ

BK/GBB-1-1/4-R

Eaton - Electronics DivisionIn Stock: 878BK/GBB-1-1/4-R Datasheet

Parametric EquivalentRFQ

0001.1025

SCHURTER Inc.In Stock: 12820001.1025 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ABC-1-1/4-R are identified based on strict parameter equivalence in the following categories:

Electrical Parameters: Current rating (1.25 A) and AC voltage rating (250 V) must be identical. Response time classification (Fast Blow) must match to ensure circuit protection characteristics remain consistent.

Mechanical Parameters: Package designation (3AB, 3AG), physical dimensions (0.250" Dia x 1.250" L), and mounting type (Requires Holder) must be identical to ensure physical interchangeability within existing holder assemblies.

Material & Construction: Fuse element material (ceramic or glass) may vary provided all other electrical and mechanical parameters remain equivalent.

Compliance: RoHS3 compliance status must be maintained. Approval agencies (CSA, UL) provide additional validation but do not restrict substitution when electrical and mechanical parameters align.

Voltage Rating - DC: When a substitute part includes DC voltage rating specification, this represents an extended capability and does not restrict substitution for AC-only applications.

Parameter Comparison

Engineering Selection Recommendations

BK/GBB-1-1/4-R (Eaton - Electronics Division): This substitute maintains full electrical and mechanical equivalence to the ABC-1-1/4-R. Both parts are manufactured by Eaton - Electronics Division and carry active product status. The BK/GBB-1-1/4-R includes DC voltage rating specification (125 V DC) in addition to the 250 V AC rating, providing extended application capability without compromising AC circuit protection performance. Breaking capacity is specified at 10kA. Both parts are ROHS3 compliant and approved by CSA and UL agencies.

0001.1025 (SCHURTER Inc.): This substitute meets all critical electrical and mechanical parameters: 1.25 A current rating, 250 V AC voltage rating, fast-blow response, and 3AB/3AG package compatibility. The primary distinction is material composition (glass cartridge versus ceramic) and manufacturer source. The 0001.1025 carries obsolete product status, indicating discontinued manufacturing. Breaking capacity is specified at 1.5kA. Operating temperature range is defined as -40°C to 85°C. This part remains ROHS3 compliant and suitable for direct substitution in existing holder assemblies where glass-type fuses are acceptable.

Frequently Asked Questions (FAQ)

Q: Can BK/GBB-1-1/4-R replace ABC-1-1/4-R in all applications?

A: Yes. Both parts share identical current rating (1.25 A), AC voltage rating (250 V), response time (Fast Blow), package designation (3AB, 3AG), and physical dimensions (0.250" Dia x 1.250" L). The BK/GBB-1-1/4-R includes additional DC voltage rating specification, which does not restrict its use in AC-only circuits. Both are active products manufactured by Eaton - Electronics Division with ROHS3 compliance.

Q: What is the difference between ceramic and glass cartridge fuses in this specification?

A: The ABC-1-1/4-R uses ceramic construction, while the 0001.1025 uses glass construction. Both maintain identical electrical ratings (1.25 A, 250 V AC), response time (Fast Blow), and mechanical compatibility (3AB, 3AG, 1/4" x 1-1/4"). The material difference affects breaking capacity: ceramic (ABC-1-1/4-R, unspecified) versus glass (0001.1025, 1.5kA). Selection between ceramic and glass depends on application breaking capacity requirements and holder compatibility specifications.

Q: Is the 0001.1025 suitable for new designs?

A: The 0001.1025 carries obsolete product status, indicating discontinued manufacturing. While it meets all electrical and mechanical substitution criteria, new designs should prioritize active products such as ABC-1-1/4-R or BK/GBB-1-1/4-R to ensure long-term supply availability and manufacturing consistency.

Q: Are there dimensional compatibility concerns between these substitutes?

A: Physical dimensions are equivalent for ABC-1-1/4-R and BK/GBB-1-1/4-R (0.250" Dia x 1.250" L). The 0001.1025 has a nominal length of 1.252" (31.80mm) versus 1.250" (31.75mm), representing a 0.002" difference. This minimal variance does not affect holder compatibility for 3AB and 3AG configurations.

Q: What approval agencies certify these fuses?

A: ABC-1-1/4-R and BK/GBB-1-1/4-R are approved by CSA and UL. The 0001.1025 does not list approval agency certifications in the provided specification data. Compliance requirements for specific applications should be verified against circuit protection standards and equipment certification documentation.