Ranco A30-1769 Constant Differential Temperature Control SPST 36" Capillary

The Ranco A30-1769 is a constant differential temperature control designed to switch electrical components of refrigeration and cooling systems in response to sensed temperatures. This versatile control features a 7°F fixed differential and a 36-inch vapor-filled capillary sensing element, making it ideal for commercial refrigeration applications where precise temperature management is critical.

Key Features:

• SPST (Single Pole Single Throw) switching configuration for reliable on/off control
• 7°F constant differential for consistent temperature cycling
• 36-inch capillary length provides flexible installation options
• Laser-welded stainless steel bellows for durability and long service life
• High-amperage contacts handle demanding electrical loads
• Dial adjustment with break-off shaft for tamper-resistant operation
• Standard 1/4-inch quick-connect terminals for easy wiring
• Includes mounting bracket, dial knob, and break-off shaft

This Ranco A30 Series control uses pneumatic action provided by the vapor-filled capillary sensing element to accurately monitor temperatures and actuate the switch mechanism. The constant differential design ensures predictable cut-in and cut-out points, making it an excellent replacement for OEM refrigeration controls. Part of the trusted Ranco A22, A30, and 9530 Series of professional-grade temperature controls used throughout the commercial refrigeration and foodservice industries.