The 3-pole unit is sized for line protection duty, with an ETU560 electronic trip unit that supports adjustable N-conductor protection (OFF, 40% to 160%). Mounting dimensions are 105 mm wide by 181 mm tall by 86 mm deep — a standard 3-pole MCCB footprint that drops into most SENTRON 3VA2 panel cutouts and busbar systems. Front protection is IP40, adequate for enclosed switchboard installation where the breaker is behind a door.
This breaker's interrupting rating varies with system voltage: 242 kA at 240 V, 187 kA at both 415 V and 440 V, 121 kA at 500 V, and 3 kA at 690 V. For 400 V class distribution (the most common industrial voltage), 187 kA gives headroom for high-fault panels.
Trip unit and protection features
N-conductor protection can be set to OFF or from 40% to 160% of the phase current rating, which is useful for 4-wire systems where neutral loading varies. The breaker includes a communication function for remote monitoring or integration into a power management system.