Eaton A480303 Equivalent & Substitute Parts

Part Overview

The Eaton A480303 is a 3-circuit barrier block connector from the Magnum® A4000 series, designed for chassis and panel mounting applications. This component features a 0.562" (14.27mm) pitch with screw termination and captive plate design, rated for 50A at 150V with wire gauge compatibility of 8-16 AWG.

The A480303 carries an obsolete product status. Identifying equivalent substitute parts ensures continued availability for maintenance, repair, and new design implementations where this connector type is specified.

Substiute Parts

A480303

Eaton - Electronics DivisionIn Stock: 1054A480303 Datasheet

Current PartRFQ

A400303

Eaton - Electronics DivisionIn Stock: 1162A400303 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the A480303 is based on electrical and mechanical parameter equivalence within the Magnum® A4000 series. The following parameters must remain constant for functional interchangeability:

• Number of circuits: 3
• Pitch spacing: 0.562" (14.27mm)
• Current rating: 50A
• Voltage rating: 150V
• Wire gauge range: 8-16 AWG
• Termination style: Screws with captive plate
• Barrier configuration: 2 Wall (Dual)
• Operating temperature range: -40°C ~ 105°C
• Flammability rating: UL94 V-0
• Mounting type: Chassis, Panel

The Eaton A400303 satisfies all these parameters and qualifies as a direct substitute. The primary distinction is product status: A480303 is obsolete while A400303 maintains active status with improved compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The A400303 is the direct substitute for the obsolete A480303. Both components are manufactured by Eaton within the same Magnum® A4000 series and share identical electrical and mechanical specifications.

The A400303 offers the following advantages:

• Active product status ensures ongoing availability and supply chain continuity
• ROHS3 compliance addresses current environmental and regulatory requirements
• REACH Unaffected status confirms compliance with chemical substance regulations
• Identical performance characteristics maintain functional equivalence in all applications

For new designs or replacement applications, the A400303 is the appropriate selection. The electrical and mechanical parameters are fully interchangeable, and the component occupies the same physical footprint with identical termination and mounting configurations.

Frequently Asked Questions (FAQ)

Q: Can the A400303 be used as a direct replacement for the A480303 in existing assemblies?

A: Yes. The A400303 is electrically and mechanically equivalent to the A480303. Both components feature identical circuit count, pitch spacing, current and voltage ratings, wire gauge compatibility, termination style, and operating temperature range. Physical mounting and electrical performance are fully compatible.

Q: What is the primary difference between these two parts?

A: The A480303 is classified as obsolete, while the A400303 maintains active product status. Additionally, the A400303 is ROHS3 compliant and REACH Unaffected, whereas the A480303 is RoHS non-compliant. All functional and electrical parameters remain identical.

Q: Are there any packaging differences between A480303 and A400303?

A: The A480303 is supplied with standard packaging, while the A400303 is supplied in bulk packaging. This distinction affects order quantities and logistics but does not impact component performance or compatibility.

Q: Do both parts meet the same safety and flammability standards?

A: Yes. Both the A480303 and A400303 carry the UL94 V-0 flammability rating and are rated for identical voltage (150V) and current (50A) specifications. Both are classified under ECCN EAR99 and HTSUS 8536.90.4000.

Q: Which part should be specified for new designs?

A: The A400303 should be specified for new designs. As an active product with current compliance certifications (ROHS3, REACH Unaffected), it ensures long-term availability and regulatory alignment.