The Siemens SENTRON 3VA2163-7MS36-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for 63 A continuous current, designed specifically for starter protection — meaning it coordinates with motor contactors to clear faults before the contactor welds shut. The electronic trip unit (ETU310M) provides adjustable overload and short-circuit protection curves matched to motor-starting inrush profiles.
Interrupting capacity and selectivity
Interrupting capacity varies sharply by voltage: 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, dropping to 3.7 kA at 690 V. The 3.7 kA figure at 690 V is the practical limit — this breaker is not intended for high-fault 690 V motor circuits. The trip current range spans 189 A minimum to 945 A maximum (3x to 15x the 63 A frame), which covers DOL motor starts up to about 30 kW without nuisance tripping.
Lifecycle and sourcing
Listed as current production (active lifecycle stage). No end-of-life notice or successor order code is available. This part is sourced and quoted to order against an RFQ through independent distribution channels.
Mounting and integration
Dimensions: 181 mm high, 105 mm wide, 86 mm deep. The 105 mm width (4.13 in) is a standard 3-pole MCCB footprint for a 160 A frame — it occupies the same DIN-rail or panel-mount cutout as other SENTRON 3VA2 devices. No undervoltage release, no communication module, no ground-fault monitoring on this variant; it is a standalone thermal-magnetic electronic trip breaker with no auxiliary functions.
Environmental and compliance
Rated for operation from -25 °C to 70 °C ambient, with no derating required across the full 63 A load range from 40 °C through 70 °C. Storage range extends from -40 °C to 80 °C. Maximum power loss is 4 W. Insulation voltage rated at 800 V. The SENTRON series carries UL, CSA, and IEC certifications; compliance documentation (RoHS, REACH) is provided with the unit.