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The Siemens 3VA9277-0HC10 is a synchronizable motor operator accessory, part of the SENTRON product brand. This motorized operating mechanism with a stored energy mechanism (SEO) is designed for use with 3VA5 250 and 3VA6 150/250 circuit breakers.
Key electrical specifications include a rated control supply voltage of 24V DC and a rated operational power of 300 VA. The mechanism offers typical make and break times of 0.08 seconds.
Mechanically, the unit measures 118.7 mm in height, 105 mm in width, and 162.8 mm in depth, with a net weight of 1877 g. It supports conductor cross-sections ranging from 1.5 mm² to 2.5 mm² for solid, finely stranded, and stranded conductors, with a stripped length requirement of 7 mm. The tightening torque for connections is specified between 0.36 N·m and 0.44 N·m.
Environmentally, the motor operator can operate within an ambient temperature range of -25°C to 70°C and can be stored between -40°C and 80°C. It is RoHS3 compliant and has an MSL rating of 1.
24 V DC.
0.08 seconds.
-25°C to 70°C.
-40°C to 80°C.
Solid, stranded, and finely stranded conductors from 1.5 mm² to 2.5 mm².
1877 grams.
0.36 N·m to 0.44 N·m.