Littelfuse 0312030.HXP Glass Cartridge Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0312030.HXP is a 30 A, 32 V AC/DC fast-blow glass cartridge fuse designed for applications requiring reliable overcurrent protection in compact form factors. This fuse is an active product with full CSA and cULus approval, suitable for standard 3AB and 3AG holder installations. Substitute parts are identified when equivalent electrical and mechanical parameters align with the main part specifications, enabling direct replacement in compatible circuit designs.

Substiute Parts

0312030.HXP

Littelfuse Inc.In Stock: 8750312030.HXP Datasheet

Current PartRFQ

0312030.MXP

Littelfuse Inc.In Stock: 20590312030.MXP Datasheet

Parametric EquivalentRFQ

BK/AGC-30-R

Eaton - Electronics DivisionIn Stock: 1987BK/AGC-30-R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Littelfuse 0312030.HXP are qualified based on strict alignment of the following electrical and mechanical parameters:

• Current Rating: 30 A
• Voltage Rating (AC): 32 V
• Fuse Type: Cartridge, Glass
• Response Time: Fast Blow
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (6.35mm x 31.75mm)
• Mounting Type: Requires Holder
• Operating Temperature Range: -55°C to 125°C
• RoHS Compliance: ROHS3 Compliant

All identified substitutes meet these core parameters and are approved for direct replacement in applications designed for the main part number.

Parameter Comparison

Engineering Selection Recommendations

All three parts—0312030.HXP, 0312030.MXP, and BK/AGC-30-R—are active products with current regulatory approvals and ROHS3 compliance. Selection between these substitutes is based on availability and design certification requirements:

• Littelfuse 0312030.HXP and 0312030.MXP share identical electrical characteristics and are both certified by CSA and cULus. These parts are interchangeable for applications requiring Littelfuse-specific approvals.

• Eaton BK/AGC-30-R meets the same core electrical parameters and is certified by CSA and UL. This part is suitable for applications where Eaton certification is acceptable or preferred. Note that the breaking capacity (1 kA) and melting I²t (4950) differ from the Littelfuse variants, which may be relevant for high-fault-current applications.

All parts are suitable for direct replacement in standard 3AB and 3AG holder installations within the specified operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can 0312030.MXP replace 0312030.HXP directly?

A: Yes. Both parts are manufactured by Littelfuse, share identical current and voltage ratings, fuse type, response time, package dimensions, and thermal operating range. They are direct parametric equivalents.

Q: Is BK/AGC-30-R compatible with the same holder as 0312030.HXP?

A: Yes. BK/AGC-30-R uses the same 3AB and 3AG package format with identical physical dimensions (0.250" Dia x 1.250" L). It installs in the same holder without modification.

Q: What is the difference in breaking capacity between Littelfuse and Eaton parts?

A: The Littelfuse variants (0312030.HXP and 0312030.MXP) have a breaking capacity of 300 A at rated voltage, while the Eaton BK/AGC-30-R has a breaking capacity of 1 kA. For applications with high fault currents, the Eaton part provides greater interrupting capability.

Q: Are all three parts RoHS compliant?

A: Yes. All three parts are ROHS3 compliant and meet current environmental regulations.

Q: Which certifications apply to each part?

A: Littelfuse 0312030.HXP and 0312030.MXP are certified by CSA and cULus. Eaton BK/AGC-30-R is certified by CSA and UL. Verify that the required certification aligns with your application's design standards before selection.

Q: Can these parts be used interchangeably in all applications?

A: Yes, for applications where the electrical parameters (30 A, 32 V AC, fast-blow response) and physical form factor (3AB/3AG holder) are the design requirements. Confirm that the certification body (cULus, UL, or CSA) meets your specific application requirements.