The ABB XT4N 160 EKIP I IN=100A 4P F F is a 4-pole power pole from the XT4N molded-case family, rated at 100 A and fitted with an EKIP I electronic trip unit. It sits in the Electrical Distribution / Power Poles category — the disconnect and overcurrent-protection point for a feeder or large branch circuit in a panel.
What the 100 A rating means for fit
The 100 A continuous rating sets the maximum uninterrupted current the power pole can carry under standard conditions. The EKIP I electronic trip gives adjustable long-time and short-time pickup, so you can dial the protection curve to match the load without swapping the power pole itself.