3ABP 6 Ceramic Fuse Equivalent & Substitute Parts

Part Overview

The 3ABP 6 is a 6 A, 250 V AC ceramic cartridge fuse manufactured by Bel Fuse Inc., designed for through-hole mounting in 3AB/3AG package format. This component is classified as obsolete, making equivalent substitutes necessary for ongoing system maintenance and new design implementations. The fast-blow response characteristic and ceramic construction provide reliable overcurrent protection in industrial and commercial applications.

Substiute Parts

3ABP 6

Bel Fuse Inc.In Stock: 7803ABP 6 Datasheet

Current PartRFQ

0324006.HXP

Littelfuse Inc.In Stock: 10320324006.HXP Datasheet

DirectRFQ

0324006.MXP

Littelfuse Inc.In Stock: 33730324006.MXP Datasheet

DirectRFQ

0324006.VXP

LittelfuseIn Stock: 8360324006.VXP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3ABP 6 is determined by strict equivalence across the following critical parameters:

• Current Rating: 6 A (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Fuse Type: Cartridge, Ceramic (exact match required)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (Axial) (exact match required)
• Response Time: Fast Blow (exact match required)
• Mounting Type: Through Hole (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (minimum requirement)

All three substitute parts—0324006.HXP, 0324006.MXP, and 0324006.VXP—manufactured by Littelfuse Inc., meet these core substitution criteria. These parts are classified as active products with enhanced specifications including DC voltage rating capability (125 V DC) and improved breaking capacity ratings.

Parameter Comparison

Engineering Selection Recommendations

All three Littelfuse substitute parts (0324006.HXP, 0324006.MXP, 0324006.VXP) are functionally equivalent to the 3ABP 6 for AC applications at 250 V, 6 A. Selection among these three active alternatives should be based on the following factors:

Product Status: The 3ABP 6 is obsolete. All substitute parts are active products with current manufacturing support and availability.

Compliance & Certifications: The 3ABP 6 holds CE, CSA, PSE, and UL approvals. Littelfuse substitutes maintain equivalent or expanded certification coverage: 0324006.HXP and 0324006.MXP include CE, CSA, K-MARK, PSE, and UL; 0324006.VXP includes CE, CSA, KC, PSE, and UL. All substitutes are ROHS3 compliant, whereas the original part is RoHS non-compliant.

Enhanced Specifications: Littelfuse substitutes provide DC voltage rating (125 V DC) and significantly higher breaking capacity (750A AC, 10kA DC versus 200A), offering improved performance margins in circuit protection applications.

Physical Compatibility: Dimensional variations are minimal (0.003" diameter and 0.008" length differences), maintaining mechanical fit within standard 3AB/3AG fuse holders.

Frequently Asked Questions (FAQ)

Q: Can the Littelfuse 0324006 series parts directly replace the 3ABP 6 in existing designs?

A: Yes. All three Littelfuse parts (0324006.HXP, 0324006.MXP, 0324006.VXP) meet the core substitution criteria: 6 A current rating, 250 V AC voltage rating, ceramic cartridge construction, 3AB/3AG package format, fast-blow response, and through-hole mounting. Physical dimensions are equivalent within manufacturing tolerance.

Q: What is the difference between 0324006.HXP, 0324006.MXP, and 0324006.VXP?

A: These three parts are electrically and mechanically identical. Differences exist only in packaging format (all specified as Bulk) and minor certification variations. 0324006.MXP has the highest inventory availability (3300 pcs), followed by 0324006.HXP (956 pcs) and 0324006.VXP (798 pcs).

Q: Why do the Littelfuse substitutes have lower melting I²t values (45 versus 107)?

A: The melting I²t parameter reflects the thermal energy required to melt the fuse element. Lower I²t indicates faster response to overcurrent conditions. Both values are within acceptable ranges for 6 A fast-blow ceramic fuses and do not affect AC circuit protection performance at rated voltage and current.

Q: Are the Littelfuse substitutes suitable for DC applications?

A: The Littelfuse parts include 125 V DC rating, whereas the 3ABP 6 does not specify DC voltage capability. For DC applications, the Littelfuse substitutes provide rated protection; however, the original 3ABP 6 should not be assumed suitable for DC circuits without manufacturer confirmation.

Q: What are the compliance implications of switching from RoHS non-compliant to ROHS3 compliant parts?

A: ROHS3 compliance indicates adherence to current environmental and hazardous substance restrictions. Littelfuse substitutes meet modern regulatory requirements, making them suitable for applications subject to RoHS directives. This represents an improvement over the obsolete, non-compliant original part.