Breaking Capacity and Selectivity Planning
The 3VA2163-7MN32-0BL0: The 330 kA at 240 V and 242 kA at 415 V place this MCCB in a high-interrupting class suitable for large fault-current panels — typically downstream of a transformer or in a main distribution board. The steep drop to 3.7 kA at 690 V means that on a 690 V system the breaker is limited to relatively low-fault branches; verify the available fault current at the point of installation against that figure. The 63 A continuous rating holds at 70 °C, so no ambient derating is required in a warm enclosure, which simplifies panel thermal calculations.
Auxiliary Switching and Release Configuration
The breaker ships with a factory-fitted auxiliary switch block: 2 auxiliary switches, 1 trip alarm switch, and 1 electrical alarm switch (HQ type). The undervoltage release (UVR) is the only auxiliary release; there is no shunt trip or communication module on this variant. The trip indicator is present, and the basic switch is the 3VA2163-7MN32-0AA0 subassembly. For applications requiring remote status or emergency stop via UVR, this configuration is ready out of the box.
Physical Dimensions and Panel Fit
Dimensions are 181 mm height, 105 mm width, and 86 mm depth. The 105 mm width is standard for a 3-pole SENTRON 3VA2 frame; it occupies three 35 mm DIN-rail modules (each 17.5 mm) plus the internal mechanism width. Depth of 86 mm (3.39 in) is within typical enclosure clearance for a fixed-mounted MCCB. No special cutout or adapter plate is required for standard panel mounting.
Environmental and Storage Limits
Operating temperature range is -25 °C to 70 °C; storage range extends from -40 °C to 80 °C. Maximum power loss is 6.5 W. The storage minimum of -40 °C is relevant for unheated warehouses or cold-weather staging; the operating minimum of -25 °C covers most indoor industrial environments. The 6.5 W dissipation per breaker should be included in panel thermal calculations when multiple units are ganged.