Orion Fans OA11/22CB AC Fan Speed Control Unit, Dual Channel, 120/220VAC, 2A, 21x50x127mm, Black

• 4 Preset Settings: Off, Low, Medium, & High
  
• Speed Adjustment: External 4 Detent Rotary Switch (Off, Low, Medium, High); Internal Potentiometers for each speed
  
• Input Protection: 2A Circuit Breaker
  
• Output Protection: 2A Circuit Breaker (Each Channel)

The Dual Channel Phase Control Unit lets the user oversee the fan speed for single or multiple fan assemblies. It can precisely control fan noise, speed and air delivery according to specific application requirements. Four factory presets (user adjustable) allows for maximum flexibility with minimum setup time. This unit has been specially designed with fan trays and equipment racks in mind where noise vs airflow needs to be managed according to immediate needs.