Abb aeu3422rcxaxt1b4 Lighting Panelboard 225A 277/480V

Product Description

The ABB aeu3422rcxaxt1b4 is a 3-phase interior lighting panelboard designed for commercial and industrial power distribution at 277/480 VAC. Rated at 225 amps with 42 circuits across 3 poles, this unit uses a copper bus and a feed-through feed configuration. It ships as an unassembled interior, giving electricians the flexibility to mount it in a new or existing enclosure. The NEMA 1/3R/12 enclosure rating supports a wide range of installation environments, from indoor to protected outdoor applications. This panelboard belongs to the A-Series II product line from ABB Electrification and is intended for licensed electrical contractors working on commercial lighting distribution systems.

This panelboard interior is suited for commercial and light industrial facilities where 277/480 VAC 3-phase lighting circuits are required. Typical applications include office buildings, warehouses, retail spaces, and industrial facilities that use 277-volt fluorescent or LED lighting loads. The feed-through feed type allows downstream panels to be served from the same feeder, supporting larger multi-panel distribution designs. At 42 circuits, this unit provides ample branch capacity for large lighting zones or mixed lighting and small-load circuits.

Key Features

• 225-amp rating with 42 circuits for high-density branch circuit distribution
• 277/480 VAC 3-phase configuration supports commercial lighting and mixed loads
• Copper bus construction for reliable conductivity and long-term durability
• Feed-through feed type enables downstream panel connections from a single feeder
• Bolted-on mounting for secure, vibration-resistant installation
• NEMA 1/3R/12 enclosure rating covers indoor, rainproof, and dust-tight environments
• Unassembled interior allows integration into new or existing enclosures

Compatibility

Designed as an OEM-style replacement or new-installation interior for 3-phase commercial lighting panelboard enclosures compatible with the A-Series II platform from ABB Electrification.

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 feeder and verify absence of voltage with a calibrated meter before beginning any work inside the enclosure. Verify that the enclosure and mounting surface are rated to support the physical dimensions and weight of this interior. Do not energize the panel until all bus connections, breakers, and grounds are fully torqued and inspected per the manufacturer documentation.

Technical Specifications

• Amperage Rating: 225 amps
• Voltage Rating: 277/480 VAC
• Number of Poles: 3
• Number of Circuits: 42
• Bus Material: Copper
• Feed Type: Feed-Through
• Mounting Type: Bolted-On
• Enclosure Type: NEMA 1/3R/12
• Type: 3-Phase Interior Unassembled
• Series: A-Series II
• Dimensions: 53.5 inches L x 15.25 inches W x 49.5 inches H

Standard Information

• Brand: ABB
• Manufacturer Part Number: aeu3422rcxaxt1b4