The Ranco A30-313 is a heavy-duty SPST temperature control engineered for high-accuracy thermal regulation in commercial refrigeration and freezing applications. This constant differential cold control features a 42-inch capillary tube, allowing for flexible remote sensing in reach-in coolers, beverage dispensers, and ice machines. Built with a laser-welded stainless steel bellows and high-amperage contacts, the A30-313 provides reliable pneumatic action and consistent switching performance under rigorous field conditions. The unit is designed with a fixed 8°F differential to prevent short-cycling and ensure stable evaporator temperatures. For field technicians, the Ranco A30-313 serves as a versatile service replacement, featuring a break-off shaft for rapid installation across varying cabinet depths. Technical parameters include a normal off setting of -10°F and a normal on of -2°F, with a warm-on peak at 21°F. The standard 1/4-inch quick-connect terminals simplify wiring integration into existing control circuits, making it a preferred choice for HVACR refrigeration parts replacement in commercial kitchens and vending equipment. Key Benefits: Universal Adaptability: Designed as a cross-reference for numerous OEM controls in commercial refrigerators and freezers. Durable Construction: Features high-amperage contacts and stainless steel bellows to handle the inductive loads of compressor circuits. Efficient Defrost Cycles: The constant differential design ensures predictable off-cycle defrosting to maintain airflow. Flexible Installation: The 42" capillary length and break-off shaft accommodate diverse mounting configurations. Common Questions: Does the Ranco A30-313 have a positive 'OFF' position? Yes, this specific model includes a manual 'OFF' detent on the control shaft for system servicing. Which applications is this control best suited for? It is ideal for reach-in freezers, beverage centers, and commercial ice makers requiring a specific temperature range of -20°F to 21°F. Can this replace a control with a shorter capillary? Yes, the 42-inch capillary can be used to replace shorter leads; ensure the excess tubing is coiled loosely and not kinked to maintain pneumatic sensing accuracy. This item is not eligible for free shipping. 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.
