Siemens Building Technology ASK71.9 Crank Arm 326058-755 you must also verify that

you must also verify that the diameter (6 5/16") and width (8 1/8") match your specific blower housing clearance to prevent mechanical interference

frequently used in pneumatic automation and instrumentation equipment

Fine-tuning ensures the start capacitor drops out at 70-80% of full motor speed

Simplified 3-Wire Installation: The 3-wire floating control design reduces wiring complexity and installation time in crowded unit vent or baseboard enclosures

frequently found in Alpha

Siemens Building Technology ASK71.9 Crank Arm 326058-755 you must also verify thatThe Siemens Building Technology ASK71. 9 Crank Arm is a heavy duty mechanical link designed for HVAC damper actuator retrofits and linear to rotary motion conversions. This universal crank arm provides a critical interface for damper shaft coupling in applications where direct ball joint connections are physically restricted or space constrained. Engineered to support Siemens OpenAir actuators, it fits damper shaft sizes ranging from 3 8 to 1 inch (9.