Open-Loop Controls

This simple method of control uses a manually operated power controller to apply a fixed voltage to the heating element. Using this system, the operator manually adjusts the controller to change heater temperature. If the airflow is suddenly interrupted, the element could fail. This is a common and inexpensive controller and often used with standard catalog products. 

Description

• Single Phase Voltage Regulator
• 0 - 10 Scale Potentiometer
• Open-loop (manual) Power Controller
• Input: 120-277 VAC, 50/60Hz, 25A 
• Output: 17-99% of Input Voltage
• UL Recognized