The EATON 1X/2X Main PD3 400A 1PH CUAG TKIT is a high-performance electrical distribution kit designed for single-phase applications. This kit includes a 400A main breaker made from copper-aluminum alloy, ensuring optimal protection and reliability. The construction provides excellent conductivity while maintaining a lightweight profile. Compliant with industry standards, this kit is suitable for various installations. Its compact design allows for easy integration into existing systems, providing a seamless upgrade path for enhanced electrical performance.