The ABB KXTCAXC4QSYW is a high-quality accessory designed for enhancing the functionality of XT2 and XT4 circuit breakers. This auxiliary component supports a configuration of 1Q+1SY at 400 VAC, ensuring reliable and efficient operation under UL standards. With its robust design and compatibility with specific ABB circuit breaker models, this accessory is ideal for industrial applications requiring precise electrical control and safety. The product also features a UPC of 888614414501, confirming its authenticity and quality standards set by ABB, a trusted name in electrical components.