Littelfuse 0326015.MXCCP Ceramic Fuse Cartridge – Equivalent & Substitute Parts

Part Overview

The Littelfuse 0326015.MXCCP is a 15 A ceramic fuse cartridge rated for 250 V AC and 125 V DC operation. This slow-blow cartridge fuse requires a 3AB or 3AG holder and is designed for applications requiring reliable overcurrent protection with controlled response characteristics. The part is active in production and widely stocked, making it suitable for direct replacement in existing installations. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical form factors, and approval certifications to ensure functional interchangeability in protected circuits.

Substiute Parts

0326015.MXCCP

Littelfuse Inc.In Stock: 9010326015.MXCCP Datasheet

Current PartRFQ

0326015.HXP

LittelfuseIn Stock: 10000326015.HXP Datasheet

Parametric EquivalentRFQ

0326015.VXP

Littelfuse Inc.In Stock: 8960326015.VXP Datasheet

Parametric EquivalentRFQ

BK/MDA-15-R

Eaton - Electronics DivisionIn Stock: 1361BK/MDA-15-R Datasheet

MFR RecommendedRFQ

MDA-15-R

Eaton - Electronics DivisionIn Stock: 1212MDA-15-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 0326015.MXCCP is determined by strict equivalence in the following parameters:

• Current Rating: 15 A (exact match required)
• Voltage Rating – AC: 250 V (exact match required)
• Voltage Rating – DC: 125 V or higher (equal or greater acceptable)
• Fuse Type: Cartridge, Ceramic (exact match required)
• Response Time: Slow Blow (exact match required)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (exact match required)
• Mounting Type: Requires Holder (exact match required)
• RoHS Compliance: ROHS3 Compliant (exact match required)

Substitute parts are grouped into two categories: Littelfuse parametric equivalents (0326015.HXP, 0326015.VXP) and manufacturer-recommended alternatives from Eaton Electronics Division (BK/MDA-15-R, MDA-15-R). All listed substitutes meet the core electrical and mechanical requirements for direct replacement.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts are active production components with full RoHS3 compliance and established approval certifications. Selection among these equivalents should be based on the following criteria:

Littelfuse Parametric Equivalents (0326015.HXP, 0326015.VXP): These parts maintain identical electrical characteristics to the 0326015.MXCCP, including current rating, voltage ratings, response time, and melting I²t value. Both are certified by CE, CSA, PSE, and UL. The 0326015.HXP carries K-MARK certification, while the 0326015.VXP carries KC certification. The primary difference is DC breaking capacity: 0326015.HXP provides 500 A DC, while 0326015.VXP provides 600 A DC (matching the main part). For applications requiring maximum DC breaking capacity, 0326015.VXP is preferred.

Eaton MDA Series (BK/MDA-15-R, MDA-15-R): These manufacturer-recommended alternatives meet all core electrical and mechanical requirements. Both provide higher breaking capacity (750 A) compared to the Littelfuse options. However, DC voltage rating is not specified in the provided data. These parts carry CE, CSA, and UL certifications. The BK/MDA-15-R variant is identified with black color coding. Both MDA series parts have higher melting I²t values (336.82 vs. 245), indicating different thermal response characteristics.

For direct replacement in existing circuits designed for the 0326015.MXCCP, Littelfuse parametric equivalents (particularly 0326015.VXP) provide the closest functional match. Eaton MDA series parts are suitable where higher breaking capacity is required and circuit design permits the different thermal response profile.

Frequently Asked Questions (FAQ)

Q: Can 0326015.HXP be used as a direct replacement for 0326015.MXCCP?

A: Yes. Both parts share identical current rating (15 A), AC voltage rating (250 V), DC voltage rating (125 V), fuse type (ceramic cartridge), response time (slow blow), package dimensions (3AB, 3AG, 1/4" x 1-1/4"), and operating temperature range (-55°C to 125°C). The difference in DC breaking capacity (500 A vs. 600 A) does not affect compatibility in standard applications. Both are ROHS3 compliant and carry appropriate certifications.

Q: What is the difference between 0326015.VXP and 0326015.HXP?

A: Both are Littelfuse parametric equivalents with identical electrical ratings and response characteristics. The primary difference is DC breaking capacity: 0326015.VXP provides 600 A DC (matching the main part 0326015.MXCCP), while 0326015.HXP provides 500 A DC. For applications with high DC fault currents, 0326015.VXP is preferred.

Q: Are Eaton MDA-15-R fuses compatible with 3AB and 3AG holders?

A: Yes. Both BK/MDA-15-R and MDA-15-R are specified for 3AB and 3AG holders with identical physical dimensions (1/4" x 1-1/4"). They are mechanically and electrically compatible with standard 3AB/3AG fuse holders.

Q: Why do Eaton MDA fuses have higher melting I²t values?

A: The melting I²t value (336.82 for MDA series vs. 245 for Littelfuse 326 series) reflects the thermal mass and response profile of the fuse element. Higher I²t indicates slower thermal response to overcurrent conditions. This difference may affect circuit protection timing in applications with specific inrush current requirements. Verify circuit design compatibility before substitution.

Q: What certifications are required for this fuse category?

A: All listed parts carry CE, CSA, and UL certifications as standard. The main part (0326015.MXCCP) and 0326015.VXP additionally carry KC and PSE certifications. The 0326015.HXP carries K-MARK and PSE certifications. Selection should confirm that required certifications for your application region are present.

Q: Is DC voltage rating specified for Eaton MDA fuses?

A: DC voltage rating is not provided in the available data for BK/MDA-15-R and MDA-15-R. Consult Eaton technical documentation or contact the manufacturer for DC voltage specifications if DC operation is required in your application.