The Siemens 3VA9157-0HA20 is a versatile motor operator designed to enhance the functionality of circuit breakers, specifically the 3VA1 160 series. This accessory is part of the esteemed SENTRON product family, known for its reliability and innovation in electrical protection technology.
Crafted for both AC and DC control voltage systems, the 3VA9157-0HA20 motor operator is compatible with a range of supply voltages, from 110V up to 230V at 50 Hz and 60 Hz for AC, and a rated control supply voltage of 110V for DC applications. This flexibility ensures that the motor operator can be integrated into various electrical setups with ease.
The compact design, with dimensions of 70 mm in height, 76.2 mm in width, and 103 mm in depth, allows for efficient use of space within electrical installations. Despite its small size, it packs a substantial operational capability, with a net weight of 578 g and a rated operational power of 250 V·A.
The 3VA9157-0HA20 is engineered to perform in a wide range of environmental conditions, with an operational temperature range from -25 °C to 70 °C, ensuring consistent performance even in extreme conditions. The mechanical design also allows for a variety of conductor cross-sections to be connected, from a minimum of 1.5 mm² to a maximum of 2.5 mm², providing versatility in wiring options.
This motor operator is not just about robust performance; it also adheres to stringent EMC standards, ensuring that it does not interfere with other electronic equipment. With a typical break and make time of 0.8 seconds and an operating frequency of up to 120 operations per hour, the 3VA9157-0HA20 is built for both speed and endurance.
The Siemens 3VA9157-0HA20 motor operator is a testament to Siemens' commitment to quality, offering a reliable and efficient solution for automating circuit breaker operations in commercial and industrial electrical systems.