63 A motor-protection MCCB with flat thermal derating
The Siemens 3VA2163-5MN32-0DA0 is a SENTRON molded case circuit breaker (MCCB) designed specifically for motor protection — it carries a 63 A continuous rating and holds that full 63 A from 40 °C all the way up to 70 °C ambient, so no derating gymnastics in a warm panel.
SCCR headroom across voltage levels
Short-circuit current rating (SCCR) is 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V — that steep drop at 690 V is the arc-extinction limit in this frame size, so verify your fault current at the line voltage before specifying.
Footprint is 105 mm wide by 181 mm tall by 86 mm deep — standard 3-pole MCCB envelope for a 63 A frame.
