System 450™ is a family of modular, digital electronic controls, easy to assemble and set up for reliable temperature, pressure, and humidity control for a wide variety of HVAC/R, commercial process, and industrial process applications. Create application-specific systems to control temperature, pressure, humidity, or all three at once, with only a small suite of models. The System 450 can be used in a wide variety of applications, including boilers, greenhouses, refrigeration racks and condenser fan applications. See the C450 Series and P499 Series for an example of the versatility of control applications.
System 350™ temperature family includes on/off (SPDT), proportional (0 to 10 VDC and 0 to 20 mA output), and reset (SPST) controls in addition to stage, display, and power modules. The controls are used for a wide variety of applications, in conjunction with the A99B Series Temperature Sensors and TE-6001 Series Sensor Mounting Accessories.
For more information on our modular electronic controls, ask your friendly, experienced PENN team.