The ABB KT5U4 is a high-quality undervoltage release designed for seamless integration with T4-T5-T6 circuit breakers. This field-installable unit operates effectively within a voltage range of 110-125VAC/DC, ensuring reliable protection and functionality in your electrical setups. Compact in design, it measures 1.05 inches in height, 1.75 inches in width, and 2.66 inches in depth, and weighs only 3.2 ounces, making it lightweight yet robust. Ideal for enhancing system safety and preventing voltage drops, the ABB KT5U4 is an essential component for maintaining stable and secure electrical operations.