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Eaton BK/AHC-30-R Ceramic Cartridge Fuse Equivalent & Substitute Parts
Part Overview
The Eaton BK/AHC-30-R is a 30 A, 600 V AC/DC ceramic cartridge fuse designed for fast-blow protection in electrical circuits. This component requires a compatible fuse holder and is classified as an active product with full cURus approval. Substitute parts are identified when inventory constraints, lead time requirements, or procurement preferences necessitate alternative sourcing while maintaining identical electrical and mechanical performance characteristics.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Current Rating | 30 A |
| Voltage Rating (AC) | 600 V |
| Fuse Type | Cartridge, Ceramic |
| Response Time | Fast Blow |
| Package / Case | 3AB, 3AG, 1/4" x 1-1/4" |
| Breaking Capacity @ Rated Voltage | 10 kA |
| Operating Temperature Range | -55°C to 125°C |
| Size / Dimension | 0.250" Dia x 1.250" L (6.35 mm x 31.75 mm) |
| Approval Agency | cURus |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution eligibility for the BK/AHC-30-R is determined by strict equivalence across the following critical parameters:
- Current Rating: 30 A (exact match required)
- Voltage Rating: 600 V AC (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)
- Breaking Capacity: 10 kA (exact match required)
- Operating Temperature Range: -55°C to 125°C (exact match required)
- Physical Dimensions: 0.250" Dia x 1.250" L (exact match required)
- Approval Agency: cURus (exact match required)
- RoHS Compliance: ROHS3 Compliant (exact match required)
The substitute part BK1/AHC-30-R meets all specified parameters and is classified as a parametric equivalent within the Eaton AHC series.
Parameter Comparison
| Parameter | BK/AHC-30-R (Main Part) | BK1/AHC-30-R (Substitute) | Match Status |
|---|---|---|---|
| Manufacturer | Eaton - Electronics Division | Eaton - Electronics Division | Identical |
| Series | AHC | AHC | Identical |
| Current Rating (Amps) | 30 A | 30 A | Identical |
| Voltage Rating - AC | 600 V | 600 V | Identical |
| Fuse Type | Cartridge, Ceramic | Cartridge, Ceramic | Identical |
| Response Time | Fast Blow | Fast Blow | Identical |
| Package / Case | 3AB, 3AG, 1/4" x 1-1/4" | 3AB, 3AG, 1/4" x 1-1/4" | Identical |
| Breaking Capacity @ Rated Voltage | 10 kA | 10 kA | Identical |
| Approval Agency | cURus | cURus | Identical |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C | Identical |
| Size / Dimension | 0.250" Dia x 1.250" L (6.35 mm x 31.75 mm) | 0.250" Dia x 1.250" L (6.35 mm x 31.75 mm) | Identical |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Identical |
| Product Status | Active | Active | Identical |
Engineering Selection Recommendations
Both the BK/AHC-30-R and BK1/AHC-30-R are active products manufactured by Eaton - Electronics Division within the AHC series. Both components carry cURus approval and maintain ROHS3 compliance, confirming their suitability for regulated applications.
The BK1/AHC-30-R substitute part demonstrates identical electrical performance, mechanical compatibility, and regulatory certification status. Selection between these parts is based on availability, inventory levels, and procurement lead times rather than technical performance differentiation.
The BK1/AHC-30-R currently maintains higher inventory availability (1891 Pcs) compared to the BK/AHC-30-R (729 Pcs), making it a viable alternative for applications requiring expedited procurement.
Frequently Asked Questions (FAQ)
Q: Can the BK1/AHC-30-R be used as a direct replacement for the BK/AHC-30-R?
A: Yes. The BK1/AHC-30-R is a parametric equivalent with identical current rating, voltage rating, fuse type, response time, package dimensions, breaking capacity, operating temperature range, and regulatory approvals. Direct substitution is supported without circuit modification.
Q: Are the physical dimensions identical between these parts?
A: Yes. Both parts measure 0.250" Dia x 1.250" L (6.35 mm x 31.75 mm) and are classified as 3AB, 3AG package types. They are mechanically interchangeable in all standard fuse holders designed for this package specification.
Q: Do both parts require the same fuse holder?
A: Yes. Both the BK/AHC-30-R and BK1/AHC-30-R require compatible 3AB or 3AG fuse holders. No holder modification or replacement is necessary when substituting between these parts.
Q: What is the breaking capacity of these fuses?
A: Both parts have a breaking capacity of 10 kA at the rated voltage of 600 V AC.
Q: Are these parts RoHS compliant?
A: Yes. Both the BK/AHC-30-R and BK1/AHC-30-R are ROHS3 compliant and carry cURus approval for regulated applications.
Q: What is the response time classification for these fuses?
A: Both parts are classified as fast-blow fuses, providing rapid circuit protection in response to overcurrent conditions.
Q: What is the operating temperature range for these components?
A: Both parts operate across a temperature range of -55°C to 125°C, supporting applications in diverse environmental conditions.
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