The Ranco® A22, A30 and 9530 Series Constant Differential Temperature Controls are designed to switch electrical components of refrigeration systems in response to sensed temperatures.
Features and Benefits
Laser-welded stainless steel bellows
Fixed or adjustable temperature settings
High-amperage contacts
Pneumatic action provided by vapor-filled capillary or capillary with bulb sensing elements
Constant On or Off positions available
Choice of mounting brackets, adjustment ranges and cams, and slotted or flatted shafts
Standard 1/4” quick-connect terminals with optional screw terminals
Series Application
A30 Series Constant Differential Control with Dial