FWH-030A6FR Equivalent & Substitute Parts

Part Overview

The FWH-030A6FR is a 30A 500VAC fuse cartridge manufactured by Eaton - Bussmann Electrical Division. This component is designed for electrical and industrial applications requiring cartridge-style fuse protection in holder-based installations. The part maintains Active product status with 806 units in current inventory. Substitute parts are identified when equivalent electrical ratings, mechanical dimensions, and approval certifications align with the original specification, enabling direct replacement in existing installations.

Substiute Parts

FWH-030A6FR

Eaton - Bussmann Electrical DivisionIn Stock: 861FWH-030A6FR Datasheet

Current PartRFQ

BK-ADC-30-R

Eaton - Electronics DivisionIn Stock: 1296BK-ADC-30-R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FWH-030A6FR is determined by the following critical parameters:

• Current Rating: 30A (exact match required)
• Voltage Rating - AC: 500 VAC (exact match required)
• Fuse Type: Cartridge configuration
• Mounting Type: Requires Holder (mechanical compatibility)
• Physical Dimensions: 0.252" Dia x 1.252" L (6.40mm x 31.80mm) (holder compatibility)
• Approval Certifications: Compliance with CE, CSA, or UR standards

The substitute part BK-ADC-30-R meets these criteria through identical current and AC voltage ratings, matching cartridge dimensions, and overlapping approval certifications (cURus includes CSA compliance). The ceramic construction and dual AC/DC voltage capability of the substitute provide equivalent or enhanced performance within the specified electrical parameters.

Parameter Comparison

Engineering Selection Recommendations

Both the FWH-030A6FR and BK-ADC-30-R are Active products from Eaton with full regulatory compliance. Selection between these parts is based on application requirements:

The FWH-030A6FR is appropriate for AC-only applications requiring CE, CSA, or UR certification with standard response characteristics.

The BK-ADC-30-R is appropriate when dual AC/DC voltage capability is required, when UL certification is mandated, or when enhanced breaking capacity (30kA AC) is necessary. The ceramic construction and Fast Blow response time of the BK-ADC-30-R provide additional operational characteristics not specified in the FWH-030A6FR.

Both parts share identical physical dimensions (0.252" Dia x 1.252" L), ensuring mechanical compatibility with standard cartridge fuse holders. Both maintain RoHS compliance and are manufactured by Eaton divisions, ensuring supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can BK-ADC-30-R replace FWH-030A6FR in existing installations?

A: Yes. Both parts have identical current ratings (30A), AC voltage ratings (500 VAC), and physical dimensions (0.252" Dia x 1.252" L). They are mechanically and electrically compatible in holder-based installations.

Q: What is the difference in breaking capacity between these parts?

A: The FWH-030A6FR has a breaking capacity of 20kA at rated voltage. The BK-ADC-30-R has a breaking capacity of 30kA AC and 20kA DC. The higher AC breaking capacity of the substitute provides enhanced fault protection capability.

Q: Does the BK-ADC-30-R's DC voltage rating affect AC-only applications?

A: No. The BK-ADC-30-R is rated for both 500 VAC and 500 VDC. In AC-only applications, the AC rating (500 VAC) applies. The additional DC capability does not impact AC performance.

Q: Are there certification differences between these parts?

A: The FWH-030A6FR carries CE, CSA, and UR certifications. The BK-ADC-30-R carries cURus and UL certifications. The cURus certification includes CSA compliance. Both meet North American and European regulatory requirements.

Q: What does "Requires Holder" mean for both parts?

A: Both the FWH-030A6FR and BK-ADC-30-R are cartridge fuses designed for use in dedicated fuse holders. They cannot be used in open circuits and must be installed in appropriate 0.252" diameter cartridge fuse holders.

Q: Is the melting I²t value important for substitution?

A: The melting I²t value indicates thermal energy dissipation characteristics. The FWH-030A6FR has a melting I²t of 145, while the BK-ADC-30-R has 270. Both values are within acceptable ranges for 30A cartridge fuses. The higher value in the substitute indicates slightly slower thermal response, which may be relevant in applications with specific thermal coordination requirements.