Equivalent & Substitute Parts for KAA-15

Part Overview

The KAA-15 is a 15A 130 VAC fast-blow cartridge fuse manufactured by Eaton - Bussmann Electrical Division, part of the Tron® KAA series. This component is classified as obsolete and requires a holder for installation. Due to its obsolete status, identifying compatible substitute parts is essential for system maintenance and component replacement in existing installations.

Substiute Parts

KAA-15

Eaton - Bussmann Electrical DivisionIn Stock: 1214KAA-15 Datasheet

Current PartRFQ

FWA-15A10F

Eaton - Bussmann Electrical DivisionIn Stock: 1033FWA-15A10F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KAA-15 is determined by the following critical parameters:

• Current Rating: Must be 15A to maintain circuit protection characteristics
• Package / Case: Must be 5AG, 10mm x 38mm (Midget) for physical compatibility with existing holders
• Mounting Type: Must require holder installation, consistent with the original design
• Voltage Rating - AC: The substitute must support at least 130 VAC operation
• Fuse Type: Must be cartridge type for holder compatibility

The FWA-15A10F meets these substitution criteria while offering enhanced voltage ratings and active product status.

Parameter Comparison

Engineering Selection Recommendations

The FWA-15A10F is a direct substitute for the obsolete KAA-15 based on the following factors:

• Both components share identical current ratings (15A) and package specifications (5AG, 10mm x 38mm)
• The FWA-15A10F maintains the required 130 VAC minimum voltage rating while providing enhanced voltage capability at 150 VAC
• The substitute is manufactured by the same supplier (Eaton - Bussmann Electrical Division), ensuring design consistency
• The FWA-15A10F holds active product status, ensuring continued availability and supply chain reliability
• The substitute carries CE and UR approvals and is RoHS compliant, meeting current regulatory requirements
• Physical dimensions are compatible with existing 5AG cartridge fuse holders

Frequently Asked Questions (FAQ)

Q: Can the FWA-15A10F be used as a direct replacement for the KAA-15?

A: Yes. Both components are 15A cartridge fuses in the 5AG package (10mm x 38mm) designed for holder installation. The FWA-15A10F supports the required 130 VAC minimum and is physically compatible with existing KAA-15 holders.

Q: What is the significance of the higher voltage rating on the FWA-15A10F?

A: The FWA-15A10F is rated for 150 VAC and 150 VDC, compared to the KAA-15's 130 VAC rating. This higher rating provides additional safety margin in applications operating at or near 130 VAC and enables use in circuits with higher voltage requirements.

Q: Are there any dimensional differences between these components?

A: The components are dimensionally equivalent for practical installation purposes. The KAA-15 measures 0.406" Dia x 1.500" L (10.30mm x 38.00mm), while the FWA-15A10F measures 0.406" Dia x 1.500" L (10.30mm x 38.10mm). The 0.10mm difference in length is negligible for holder compatibility.

Q: Why is the KAA-15 listed as obsolete?

A: The KAA-15 is no longer in active production. The FWA-15A10F represents the current equivalent offering from Eaton - Bussmann Electrical Division and is actively manufactured and stocked.

Q: What certifications does the substitute carry?

A: The FWA-15A10F carries CE and UR approvals and is RoHS compliant, meeting current international regulatory standards for electrical components.