It carries the ETU350M electronic trip unit with phase failure detection, and a shunt trip release integrated. Breaking capacity hits 187 kA at 240 V, 121 kA at 415 V, and still holds 17 kA at 690 V — so it handles high-fault panels without cascading upstream. The 40 A rating holds steady from 40 °C up to 50 °C; above that it derates gradually to 36 A at 70 °C.
Motor protection and trip unit
This is the motor protection version, not a plain line breaker.
Auxiliary and alarm contacts
That's enough for remote status indication, fault annunciation, and a separate alarm for electrical trips. The integrated auxiliary trip module is order code 3VA9688-0BL30.
Physical footprint
No DIN-rail mount; it's bolted directly to the mounting plate or busbar system.
Environmental and power loss
Maximum power loss is 75 W — accounts for the internal heater and trip coil dissipation at full rated current. That matters for enclosure thermal rise calculations in a sealed panel.