Ranco A30-323 Temperature Control

The Ranco A30-323 is a heavy-duty constant differential temperature control engineered for precision in commercial refrigeration and foodservice applications. This SPST cold control features a 48-inch capillary for versatile bulb placement, ensuring reliable on/off compressor function based on accurate vapor-pressure sensing. Field-tested for durability, the unit utilizes laser-welded stainless steel bellows and high-amperage 20A contacts to withstand the rigors of commercial freezer cycles without contact pitting or drift.

Designed as a direct field replacement for the 9530N1600-070U and various OEM controls in Traulsen, True, and Hobart units, the A30-323 provides a fixed 10°F differential with a normal range of -5°F to 5°F. Technicians appreciate the pneumatic action and break-off shaft design, which allows for rapid adaptation to existing mounting brackets and dial configurations. Whether you are servicing a reach-in freezer or a beverage cooler, this Robertshaw-manufactured control maintains stable setpoints to protect equipment from short-cycling and ensure food-safe holding temperatures.

Key Benefits:

• Broad Compatibility: Drop-in replacement for Ranco A30 Series, 9530N, and major OEM freezer controls.
• Extended Reach: The 48-inch capillary tube provides flexibility for remote sensing in tight evaporator coils.
• Robust Electrical Ratings: Rated for 20 Amps at 120/240V AC, providing reliable switching for high-load compressors.
• Rugged Construction: Laser-welded bellows prevent leaks and maintain calibration under extreme thermal stress.
• Simplified Installation: Includes a slotted break-off shaft and mounting hardware to match various cabinet depths.

Common Questions:

Does this control support constant cut-in?
No, the Ranco A30-323 is a constant differential control, meaning it maintains a fixed 10°F span between the cut-in and cut-out points rather than a fixed reset temperature.

What are the specific temperature setpoints?
In a normal dial position, the unit is calibrated for an 'Off' temperature of -5°F and an 'On' temperature of 5°F. The warm-on setting extends to 10.5°F for versatile application tuning.

Will this work for a walk-in cooler?
This specific model is calibrated for freezer temperature ranges. For cooler applications requiring higher setpoints, verify the range requirements against the A30-323 parameters of -11°F to 10.5°F.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.