What it is and what it does
The Siemens 3VA1163-5ED32-0CH0 is a SENTRON molded case circuit breaker (MCCB) rated for line protection. It carries a continuous current of 63 A across ambient temperatures from 40 °C to 50 °C, then derates to 56.7 A at 70 °C — so for a panel running warm, you size the load at the 70 °C figure, not the 63 A nameplate. The TM210 thermal-magnetic release handles overload and short-circuit protection without external power.
Breaking capacity — what the numbers mean
This MCCB interrupts 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V. Those are the maximum fault currents it can safely clear at each voltage level. For a 480 V panel, the 75.6 kA rating is the one that matters — it tells you the available fault current at the board must not exceed that figure, or you need a current-limiting upstream device. The 690 V rating (17 kA) covers 600 V class installations, though at a lower interrupting capacity.
Panel fit and wiring
The 3VA1163-5ED32-0CH0 measures 130 mm high by 76.2 mm wide by 70 mm deep. That 76.2 mm width is a standard 3-pole MCCB footprint — it fits a 3-module DIN-rail space. The IP40 front protection means it's fine inside a closed panel but not for washdown areas. The auxiliary contact block (2 auxiliary switches + 1 trip alarm switch HQ) is built in, so you don't need a separate add-on for remote status feedback. The undervoltage release (UVR) is also integrated — if the control voltage drops, the breaker trips, which is typical for emergency-stop or safety circuits.