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.
- 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
Specifications:
- Series Application: A22/A30 Series Adaptable Constant Differential Control
- Switch: SPST
- Off Position: Yes
- Cold Off: 0.5 °F (-17.5 °C)
- Cold On: 5.5 °F (-14.7 °C)
- Normal Off: 16 °F (-8.9 °C)
- Normal On: 22 °F (-5.6 °C)
- Warm On: 30 °F (-1.1 °C)
- Differential: 6 °F (-14.4 °C)
- Capillary Length: 42" (1067 mm)