Abb AEU3424RCXAXB4 Panelboard 480V 3ph 400A 42-circuit

Product Description

The ABB AEU3424RCXAXB4 is a main breaker or main lug panelboard designed for commercial and industrial power distribution applications. Built for 480-volt, 3-phase service, it carries a 400-amp rating and features a copper bus with capacity for 42 circuit positions. The non-fusible (NF) configuration means overcurrent protection is handled through the installed breakers rather than fuse elements. Electricians and electrical contractors install this panelboard as a branch-circuit distribution hub in facilities requiring high-ampacity 3-phase power management.

This panelboard is suited for commercial new construction, tenant improvement projects, and industrial facility upgrades where 480-volt 3-phase distribution is required. The 42-circuit copper bus accommodates a high density of branch circuits, making it appropriate for motor loads, HVAC equipment feeds, lighting panels, and general-purpose distribution in medium to large commercial or light industrial buildings.

Key Features

• 480-volt, 3-phase rated for commercial and industrial distribution
• 400-amp main rating for high-ampacity branch circuit applications
• 42-circuit positions provide high branch-circuit density
• Copper bus construction for reliable conductivity and long-term durability
• Non-fusible (NF) design relies on installed circuit breakers for overcurrent protection

Compatibility

Designed as an OEM-style panelboard for 480-volt 3-phase commercial and industrial electrical distribution systems requiring a 400-amp, 42-circuit copper bus assembly.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize the service entrance and verify absence of voltage at all terminals before beginning work. Torque all lugs and bus connections to the values specified on the panelboard label or manufacturer documentation. The enclosure must be properly grounded and bonded per NEC Article 250 requirements.

Technical Specifications

• Voltage Rating: 480 volts
• Phase: 3-Phase
• Amperage Rating: 400 amps
• Circuit Positions: 42
• Bus Material: Copper
• Fusing Type: Non-Fusible
• UPC: 783175120338

Standard Information

• Brand: ABB
• Manufacturer Part Number: AEU3424RCXAXB4