The Schneider Electric Square D EZM3400CBU300 is a main circuit breaker unit designed for robust electrical distribution within industrial settings. This metering unit, part of the Square D series, features a main rated current of 300 amps and a bus rated current of 400 amps, providing reliable protection and control for electrical systems. Its construction ensures efficient and safe operation in demanding environments.

Technical details

• Series: Square D
• Main Rated Current: 300 Amps
• Bus Rated Current: 400 Amps
• Operational Voltage Support: 208Y/120 V AC and 240/120 V AC
• Type: Main Circuit Breaker Unit
• Functionality: Electrical distribution and metering
• Configuration: Unitized metering design

Applications & compatibility

This circuit breaker unit is commonly integrated into main electrical service panels and distribution switchboards for commercial and industrial facilities. It is suitable for applications requiring precise metering of power consumption alongside circuit protection, such as in manufacturing plants, data centers, and large commercial buildings.

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 EZM3400CBU300 or contact our technical team for cross-reference assistance with compatible Square D distribution components.