Technical pros value the CWLE (Clockwise Lead End) rotation and the 1/2-inch diameter flat shaft for secure fan blade seating

long-term operation for compressor and fan motor loads

ensuring accurate resistance-to-temperature signals without calibration drift

Plug-and-Play Integration: Includes standard 6-inch electrical leads for fast terminal connection during emergency service calls

Siemens Building Technology 658-069 Actuator Assembly 321894-709 Technical pros value the CWLEThe Siemens Building Technology 658 069 Actuator Assembly is a high performance pneumatic actuator designed for commercial HVAC maintenance and precise airflow regulation. Engineered as part of the 658 Powertop Series, this 3 7# actuator assembly operates within a standard 10 to 14 psi range, making it a critical component for HVAC damper control and variable air volume (VAV) systems. This replacement actuator is frequently utilized in Siemens