Stored energy motor operator for 3VA23/3VA24 breakers
The Siemens 3VA9467-0HC30 is a stored energy motor operator (SEO) — a motorized operating mechanism that charges the breaker's spring mechanism remotely, enabling electrical closing and opening of 3VA23/3VA24 molded case circuit breakers. It accepts a control supply of 110-230 V AC at 50/60 Hz or 110-250 V DC, drawing 300 VA operating apparent power during the charge cycle. Typical make time is 0.08 s; break time is 5 s. This is a panel-mounted accessory that integrates into the SENTRON family's modular breaker lineup.
The 300 VA operating apparent power is the peak draw during the spring-charging event — not a continuous load. It determines the control transformer or power supply sizing in the panel. The wide AC/DC control voltage range (110-230 V AC, 110-250 V DC) means the same unit works across common global control voltages without a separate coil variant. The 0.08 s make time and 5 s break time define the mechanism's mechanical response, not the breaker's interruption speed — the SEO charges the spring; the breaker's own trip unit handles fault interruption. Dimensions of 159 mm depth, 137.6 mm width, and 127.4 mm height dictate the mounting footprint inside the enclosure, typically occupying the accessory slot on the breaker face.