The Siemens 3VA2063-6HN32-0BL0 is a SENTRON 3VA2 molded case circuit breaker (MCCB) rated for 63 A continuous current across the full 40 °C to 70 °C ambient range — no derating needed up to that ceiling. It carries 242 kA breaking capacity at 240 V, stepping down to 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3 kA at 690 V. That spread covers most low-voltage distribution panels and motor branch circuits in industrial plants.
Configuration and auxiliary content
This MCCB ships with a factory-fitted undervoltage release (UVR) and an auxiliary switch block comprising 2 auxiliary switches, 1 trip alarm switch, and 1 electrical alarm switch HQ. The UVR drops the breaker on loss of control voltage — standard for emergency-stop or safety-related disconnects where you need the load isolated when the control supply fails. The 3-pole line-protection design means it is intended for feeder or branch-circuit duty, not motor-protection with integrated overload — pair it with a separate overload relay if driving a motor load. Dimensions are 181 mm high, 105 mm wide, 86 mm deep — a standard SENTRON 3VA2 footprint that drops into existing panel cutouts and busbar systems.