The ABB KXTAUVR6 is a high-quality accessory designed for use with XT1, XT2, XT3, and XT4 circuit breakers. This under-voltage release (UVR) accessory operates within a voltage range of 380-440 VAC, ensuring reliable performance under UL/CSA standards. Ideal for enhancing system safety and functionality, the KXTAUVR6 helps maintain control by allowing the circuit breaker to trip or close under specific voltage conditions. With its robust construction and precise engineering, this accessory is an essential component for industrial electrical setups.