The Siemens SENTRON 3VA2163-7MN32-0AG0 is a 3-pole molded case circuit breaker (MCCB) designed specifically for motor protection, rated at 63 A continuously from 40 °C through 70 °C ambient — no derating needed across that span. Phase failure detection is built in, so it catches a lost phase before the motor cooks.
Interrupting capacity and footprint
Interrupting capacity hits 330 kA at 240 V, 242 kA at 415/440 V, 187 kA at 500 V, and 3.7 kA at 690 V — that 690 V figure is the weak link; verify your system voltage against the curve. Dimensions are 86 mm deep, 105 mm wide, 181 mm tall (3.39 x 4.13 x 7.13 in). The 105 mm width means it occupies three standard 35 mm DIN-rail modules; check fill factor if retrofitting into a crowded panel.
Built-in auxiliaries and trip alarm
Ships with one auxiliary switch and one trip alarm switch (HP type) integrated — no separate add-on block to source. The supplied basic switch is order code 3VA2163-7MN32-0AA0. No undervoltage release, no ground-fault monitoring, no communication function. Trip indicator is present for quick visual fault identification.