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The Siemens SENTRON 3VA9277-0HC20 is a motorized operating mechanism with a stored energy mechanism, functioning as a synchronizable motor operator accessory. It is designed for use with Siemens 3VA5 250 and 3VA6 150/250 circuit breakers.
This accessory operates within a wide control supply voltage range of 42-60V AC/DC, supporting both 50 Hz and 60 Hz frequencies. It has a rated operational power of 300 VA. The mechanical design includes dimensions of 118.7 mm in height, 105 mm in width, and 162.8 mm in depth, with a net weight of 1,877 g.
Electrical connections accommodate solid, finely stranded, and stranded conductors with cross-sections ranging from 1.5 mm² to 2.5 mm². The operating temperature range is from -25 °C to 70 °C, while the storage temperature range is -40 °C to 80 °C. Tightening torque specifications are between 0.36 N·m and 0.44 N·m. The stripped length for connections is 7 mm.
42 to 60 V AC (50/60 Hz) and DC.
-25 to 70 °C during operation.
300 VA.
0.08 seconds typical.
118.7 mm height, 105 mm width, 162.8 mm depth.
1,877 g.
1.5 to 2.5 mm² for solid, stranded, and finely stranded with core end processing.