The Siemens 3VA2163-5MN36-0JA0 is a SENTRON 3VA2 molded case circuit breaker (MCCB) built for motor protection — 63 A continuous rating across the full ambient range from 40 °C to 70 °C, so no derating headache when the panel runs hot. Breaking capacity hits 187 kA at 240 V, 121 kA at 415/440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V — covers most industrial distribution levels without a second fuse.
That 4 W max power loss is low enough to skip forced ventilation in most panels. The shunt trip (STL) release lets a PLC or E-stop circuit drop the breaker remotely; undervoltage release is absent, so if your safety circuit relies on UVR, this isn't the variant. Motor protection design means the trip curve is shaped for motor inrush — not a straight thermal-magnetic for general distribution.
Dimensions: 105 mm wide, 181 mm high, 86 mm deep — standard 3-pole MCCB footprint for the 3VA2 family.