Its 100 kA interrupting rating at 240 VAC and 65 kA at 480 VAC mean it can clear high-fault currents without upstream coordination issues — critical for feeder circuits in mills or processing plants where fault levels run high.
The 690 VAC operating voltage covers 480 V and 600 V class systems, including 600Y/347 V where it still interrupts 25 kA. IP40 on the front keeps dust out of the mechanism but isn't rated for washdown; mount it inside a sealed enclosure if the environment is wet or dusty.