The Siemens 3VA9267-0HA10 is a SENTRON motorized operating mechanism (MO) designed as an accessory for 3VA2 molded case circuit breakers in the 100 A, 160 A, and 250 A frame sizes. It provides remote electrical open/close control of the breaker, drawing 250 VA of operating apparent power from a 24-60 V DC control supply.
This motor operator mounts directly onto the 3VA2 breaker, adding 132 mm depth, 105 mm width, and 75 mm height to the assembly. The 7 mm stripped length on the control wiring terminals matches standard ferrule preparation. Make and break times are both 1 s typical, so the mechanism cycles the breaker at a deliberate, controlled speed — not a high-speed trip actuator.