The Siemens SENTRON 3VA2163-5KP32-0AG0 is a 3-pole molded case circuit breaker (MCCB) rated for 63 A continuous current across the full ambient temperature range from 40 °C to 70 °C — no derating needed up to that ceiling. That flat thermal curve simplifies panel design: you size the bus and downstream conductors for a solid 63 A without calculating temperature correction factors. Breaking capacity is the headline selector. This unit delivers 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. The line protection design means the thermal-magnetic trip curve is set for cable and busbar protection, not motor overload — pair it with a separate overload relay if feeding a motor directly.
Dimensions are 105 mm wide, 181 mm high, 86 mm deep — a 3-pole frame that fits standard Siemens 3VA panelboard and enclosure cutouts. Communication function is built in, which on the 3VA platform typically means the breaker supports the SENTRON communication module for PROFIBUS or PROFINET — verify the specific communication module order code if you need fieldbus integration.