Line protection MCCB with ETU550 — 100 A continuous, 242 kA interrupting at 240 V
Interrupting capacity reaches 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3.7 kA at 690 V — the steep drop above 500 V is the limiting factor for 690 V line-side applications; verify the fault current at your system voltage against these numbers. The breaker includes a communication function for remote monitoring and trip-event logging.
Footprint is 105 mm wide by 181 mm tall by 86 mm deep — a standard 3-pole MCCB envelope that drops into most SENTRON 3VA switchboard or distribution panel cutouts without re-drilling. Front protection is IP40, so the breaker is suited for indoor panel mounting where tools or fingers might contact the front face; the enclosure itself must provide the overall IP rating for washdown or outdoor environments. Maximum power dissipation is 10 W — a modest thermal load that keeps internal panel temperature rise manageable even in a densely packed distribution section.