Ranco O10-1409 Temperature Control

The Ranco O10-1409 is a heavy-duty, single-pole single-throw (SPST) medium temperature control engineered for precision in self-contained refrigerators, walk-in coolers, and refrigeration display cases. Built with a rugged zinc-plated cold rolled steel frame and a non-conductive NEMA 1 enclosure, this commercial refrigeration thermostat offers a reliable 0°F to 55°F temperature range. Designed for versatility, it features a 72-inch capillary with a remote bulb, allowing for flexible mounting in dense equipment footprints. Technicians can achieve exact calibration using the 7-revolution range adjustment screw, while the adjustable differential (3°F to 20°F) ensures tight cycling control to prevent short-cycling and protect compressor longevity. The laser-welded bellows provide superior durability under constant thermal stress. With a closes on rise action and a 24-amp 240V rating, this universal refrigeration control is a standard replacement for many OEM applications requiring high-capacity switching and long-term mechanical stability.

• Precise Calibration: Features 7-revolution adjustment screws for high-accuracy setpoint targeting.
• Extended Service Life: Equipped with laser-welded bellows to withstand repeat mechanical cycles.
• Universal Mounting: Compact frame design and 72-inch capillary length simplify installation in various walk-in and cooler configurations.
• Electrical Reliability: High-rating 24A SPST switch handles demanding inductive loads without premature contact wear.
• Intuitive Setup: Large, easy-to-read scale plate allows for quick field adjustments and verification.

Is the Ranco O10-1409 an open-on-low or close-on-low control?
This model is a closes on rise (normally open) control, which means it will close the circuit and initiate cooling as the temperature increases to the setpoint.

What is the maximum electrical load for this unit?
The O10-1409 is rated for a full load current of 24 Amps at 120V or 240V AC, making it suitable for standard commercial refrigeration compressors.

Can I use this for a freezer application?
While it can reach 0°F, it is classified as a medium temperature control. For dedicated low-temperature freezer applications requiring defrost termination or lower ranges, verify that the 0°F to 55°F range meets your specific cycle requirements.

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.