The ABB KT5U2 is a high-quality undervoltage release designed for optimal performance and reliability. This field-installable accessory is compatible with T4-T5-T6 circuit breakers and operates within a voltage range of 220-250VAC/DC. Its compact dimensions, measuring 1.71 inches in height, 1.03 inches in width, and 2.66 inches in depth, make it an efficient solution for enhancing circuit breaker functionality. The unit weighs just 5.2617 ounces, ensuring minimal additional load. Ideal for ensuring stable and safe electrical operations, the ABB KT5U2 is an essential component for any electrical installation requiring precise voltage monitoring and control.