FWH-002A6F Equivalent & Substitute Parts

Part Overview

The FWH-002A6F is a 2A cartridge fuse rated for 1 kVAC and 600 VDC operation, manufactured by Eaton - Bussmann Electrical Division. This component is designed for electrical and industrial applications requiring overcurrent protection in holder-based installations. The part maintains Active product status with 821 units in current inventory. Substitute parts are identified when equivalent electrical ratings and mechanical compatibility are maintained across the specified parameter set.

Substiute Parts

FWH-002A6F

Eaton - Bussmann Electrical DivisionIn Stock: 918FWH-002A6F Datasheet

Current PartRFQ

AHC-2-R

Eaton - Electronics DivisionIn Stock: 1174AHC-2-R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FWH-002A6F is determined by the following critical parameters:

• Current Rating: 2A (exact match required)
• Voltage Rating - AC: Minimum 1 kVAC or equivalent dual-voltage rating
• Voltage Rating - DC: Minimum 600 VDC or equivalent dual-voltage rating
• Fuse Type: Cartridge configuration
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" form factor
• Mounting Type: Requires Holder compatibility
• Approval Agency: Recognized certification bodies (UL, CE, CSA, UR)

The substitute part AHC-2-R meets the current rating, package dimensions, and holder requirement specifications. However, the AC voltage rating of 600V is lower than the primary part's 1 kVAC rating, and the breaking capacity differs. These differences must be evaluated against application requirements.

Parameter Comparison

Engineering Selection Recommendations

The FWH-002A6F and AHC-2-R share identical current ratings (2A) and compatible mechanical form factors (3AB, 3AG, 1/4" x 1-1/4"). Both components are Active products with current inventory availability and RoHS compliance certification.

Selection between these parts depends on application voltage requirements. The FWH-002A6F supports 1 kVAC operation, while the AHC-2-R is rated for 600V AC. The breaking capacity of the FWH-002A6F (30kA AC, 50kA DC) exceeds that of the AHC-2-R (10kA). The melting I²t values differ (1.3 versus 1), affecting response characteristics.

Both components carry recognized international approvals. The FWH-002A6F holds CE, CSA, and UR certifications, while the AHC-2-R carries UL certification. Compliance requirements for the target application determine certification priority.

Frequently Asked Questions (FAQ)

Q: Can AHC-2-R replace FWH-002A6F in all applications?

A: Physical compatibility exists due to matching package dimensions and holder requirements. Electrical compatibility requires verification that the application voltage does not exceed 600V AC, as the AHC-2-R is not rated for the 1 kVAC specification of the FWH-002A6F.

Q: What is the significance of the breaking capacity difference?

A: Breaking capacity indicates the maximum fault current the fuse can safely interrupt. The FWH-002A6F (30kA AC, 50kA DC) has higher breaking capacity than the AHC-2-R (10kA). Applications with higher fault current levels require the higher breaking capacity rating.

Q: Are the physical dimensions interchangeable?

A: The dimensions are nearly identical (FWH-002A6F: 0.252" Dia x 1.252" L; AHC-2-R: 0.250" Dia x 1.250" L) and both use 3AB, 3AG, 1/4" x 1-1/4" packaging. Both fit standard cartridge fuse holders designed for these specifications.

Q: What does the melting I²t value indicate?

A: Melting I²t represents the thermal energy required to melt the fuse element. The FWH-002A6F (1.3) has a higher value than the AHC-2-R (1), indicating different response times to overcurrent conditions. Application requirements for response speed determine which value is appropriate.

Q: Which certifications apply to my application?

A: The FWH-002A6F carries CE, CSA, and UR approvals. The AHC-2-R carries UL approval. Regulatory requirements for your specific market and application determine which certifications are mandatory.