The Schneider Electric Square D EZM3400TBCU is a main terminal box designed for 400A, three-phase, four-wire electrical distribution systems. This unit is engineered for compatibility with both overhead (OH) and underground (UG) service entrances, providing a robust connection point for incoming power. It is suitable for installations requiring 208Y/120VAC or 240/120VAC delta incoming service voltages.

Technical details

• Series: Square D EZM
• Amperage Rating: 400A
• Bus Rating: 800A
• Configuration: Three-phase, four-wire
• Incoming Service Voltage Compatibility: 208Y/120VAC, 240/120VAC delta
• Service Type Compatibility: Overhead (OH) and Underground (UG)
• Enclosure Type: Terminal Box

Applications & compatibility

This terminal box is commonly utilized in commercial and industrial facilities for main service entrance applications, power distribution panels, and sub-distribution systems. Its design accommodates a variety of building types and electrical infrastructure where reliable 400A service termination is required.

Available from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the Schneider Electric Square D EZM3400TBCU or contact our technical team for cross-reference assistance with compatible Square D distribution components.