Johnson C450SPN-4C Expansion Module 1AO

System 450 is a family of modular, digital electronic controls that is easily assembled and set up to provide reliable temperature, pressure, and humidity control for a wide variety of Heating, Ventilating, Air Conditioning, and Refrigeration (HVACR) and commercial/industrial process applications. The System 450 control system is designed to replace System 350™ control system and System 27, and provide many additional features and benefits with less than a dozen model variations.

Johnson C450SPN-4C Features:

• Proportional Output 0-10Vdc
• -40 to 150 Deg F
• Typically used as Refrigeration Control
• Temperature/Pressure/Humidity Applications
• 1 Open of Rise, 1 Closes on Rise

Technical Information:

https://be-ebusiness.eu.johnsoncontrols.com/vb/Fil...

Original Part Number #C450SPN-1C