Siemens SED2-11 32X VBA315.D133X Variable Frequency Drive

The Siemens SED2-11/32X variable frequency drive, bundled with the VBA315.D133X control panel, is a 15 HP (11 kW) three-phase HVAC drive designed to precisely vary motor speed for fans and pumps in commercial building systems. It accepts 380–480 VAC three-phase input, with 460 V operation common in HVAC installations, delivering reliable, energy-efficient speed control for variable-torque loads. This SED2 variant supports a broad range of digital and analog I/O types and direct Siemens NI 1000 RTD sensor input, enabling seamless integration with building management systems and sensors. The VBA315.D133X interface provides on‑site control and parameter programming tailored to HVAC use cases, helping configure pumping and ventilation schedules, acceleration/deceleration profiles, and fault response. As part of the Siemens SED2 family, it is designed for robust performance in demanding HVAC environments, offering the reliability and compatibility expected from Siemens building automation solutions.