New variable speed drive from Siemens
The Siemens Building Technologies division has launched a new energy efficient modular variable speed drive allowing users to reduce their heating, ventilation and air conditioning (HVAC) operating costs.
Suitable for applications requiring an efficient drive for pumps or fans, the G120P variable speed drive (VSD) is user-friendly and can also be used in harsh environmental conditions due to its protection classes of IP54 and IP55. For example, it can operate in temperatures up to 60°C – an essential feature for controlling the speed of fans and recirculation pumps in heating and cooling systems.
Operating in a power range from 0.37 to 90 kilowatts (kW), the new VSD has a modular structure consisting of a control unit, the power module and an operating panel (basic operating panel BOP-2, or intelligent operating panel IOP) or a blanking cover. This design enables individual components to be exchanged without having to replace the entire drive. For example, a power module can be exchanged without reconfiguring the entire device or rewiring the signal and bus cables.
The G120P VSD is designed to suit the needs of pump installations and ventilation systems and offers numerous safety features.