The 3-pole construction with phase failure detection and an integrated undervoltage release makes it a fit for motor branch circuits where loss-of-voltage protection is required by code or machine safety practice.
Interrupting capacity and selectivity
At 240 V this MCCB interrupts 330 kA, dropping to 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.7 kA at 690 V.
Motor protection features
The product designation is motor protection, which means the thermal-magnetic trip curve is shaped for motor inrush and overload profiles rather than straight feeder protection. The undervoltage release (UVR) drops the breaker when supply voltage falls below a threshold, preventing automatic restart after a dip. There is no ground-fault monitoring and no auxiliary switch, so external monitoring modules are needed if remote status is required.
Dimensions are 181 mm height, 105 mm width, 86 mm depth. The 105 mm width is standard for a 3-pole MCCB in the SENTRON 3VA2 family — it occupies the same panel footprint as other 3VA2 3-pole units. Maximum power loss is 6.5 W — negligible for panel thermal budgeting.