AT-30 Blade Fuse Equivalent & Substitute Parts

Part Overview

The AT-30 is a blade fuse manufactured by Eaton - Bussmann Electrical Division, classified as an AC DC fuse in blade configuration. This part is currently obsolete, which necessitates identification of functionally equivalent alternatives for ongoing maintenance and repair applications. The AT-30 remains available in inventory (768 pcs) and maintains RoHS compliance despite its discontinued status.

Substiute Parts

AT-30

Eaton - Bussmann Electrical DivisionIn Stock: 787AT-30 Datasheet

Current PartRFQ

ATC-30

Eaton - Bussmann Electrical DivisionIn Stock: 968ATC-30 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The ATC-30 is identified as the manufacturer-recommended substitute for the obsolete AT-30. Substitution eligibility is determined by the following parameters:

• Current Rating: 30 A
• Voltage Rating: 32 V DC
• Fuse Type: Blade configuration (ATO/ATC)
• Response Characteristic: Fast Blow
• Compliance: RoHS Compliant, UL Approved
• Regulatory Classification: ECCN EAR99, HTSUS 8536.10.0040

The ATC-30 maintains identical electrical specifications and regulatory compliance while offering active product status and established supply availability.

Parameter Comparison

Engineering Selection Recommendations

The ATC-30 is the direct substitute for the AT-30 based on manufacturer designation. Selection of the ATC-30 is supported by:

• Active product status ensuring continued availability and supply chain stability
• Identical regulatory compliance (RoHS, ECCN, HTSUS classification)
• UL approval certification
• Equivalent blade fuse configuration (ATO/ATC standard)
• Matching electrical specifications (30 A, 32 V DC, Fast Blow response)

The transition from AT-30 to ATC-30 presents no electrical or mechanical incompatibility for applications requiring blade fuse protection in the 30 A, 32 V DC specification range.

Frequently Asked Questions (FAQ)

Q: Why is the AT-30 being replaced? A: The AT-30 has reached obsolete status. The ATC-30 provides equivalent functionality with active product status and assured supply availability.

Q: Are the AT-30 and ATC-30 electrically identical? A: Both parts are 30 A, 32 V DC blade fuses with Fast Blow response characteristics. They share identical regulatory classifications and RoHS compliance.

Q: What is the physical form factor difference? A: Both use blade fuse configuration (ATO/ATC standard). The ATC-30 is designated as an automotive fuse type but maintains the same blade geometry and holder compatibility.

Q: Can I use ATC-30 in place of AT-30 without modification? A: The ATC-30 is the manufacturer-recommended substitute. No circuit modifications are required for direct substitution in applications designed for 30 A, 32 V DC blade fuse protection.

Q: What compliance certifications apply to both parts? A: Both AT-30 and ATC-30 are RoHS Compliant, classified as ECCN EAR99, and assigned HTSUS code 8536.10.0040. The ATC-30 carries UL approval.