What this MCCB is and where it fits
The Siemens SENTRON 3VA1163-6EF32-0BA0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection in commercial and industrial distribution panels. It carries a continuous current of 63 A at 40 °C through 50 °C, derating to 58 A at 70 °C, so the thermal trip stays stable across typical enclosure ambient temperatures without oversizing the frame. The TM240 overcurrent release provides fixed thermal-magnetic protection — the thermal element handles overloads, the magnetic element clears short-circuits. An integrated undervoltage release (UVR) is built in, so the breaker can be tripped remotely on loss of control voltage, which is common in emergency-stop or undervoltage protection schemes. Breaking capacity is rated 220 kA at 240 V, 154 kA at 415 V, 121 kA at 440 V, and 17 kA at 500 V and 690 V. At 415 V — common in European industrial networks — the 154 kA rating handles high-fault scenarios without cascading to upstream gear.
Mounting and integration notes
Dimensions are 130 mm high, 76.2 mm wide, 70 mm deep — a standard 3-pole MCCB footprint that fits SENTRON panelboards and most DIN-rail-mount enclosures. No communication module or ground-fault monitoring on this variant, so it's a straight line-protection breaker with no auxiliary electronics to wire. Power loss is 19.8 W maximum at rated current — factor that into enclosure thermal calculations if the panel is tightly packed. Operating temperature range is -25 °C to 70 °C; storage from -40 °C to 80 °C. The breaker can sit in unheated warehouses or outdoor enclosures within those limits.