Ranco A30-304 Refrigeration Control

The Ranco A30-304 is a professional-grade refrigeration temperature control designed for precise thermal regulation in commercial and residential cooling systems. This single pole single throw (SPST) switch provides reliable on/off compressor management, ensuring consistent internal temperatures for ice machines, walk-in coolers, and beverage dispensers. Built with a 84-inch capillary, it allows for versatile installation and remote sensing even in large-scale cabinets or evaporators. The Ranco A30 series is engineered with laser-welded stainless steel bellows to deliver a constant differential, with this specific model operating within a 15.5°F differential for optimized cycling.

For service technicians, the A30-304 is a go-to HVAC substitution control due to its adaptable mounting bracket and break-off extension shaft, which accommodate various dial depths. It is rated for 20 Amps at 240V AC, providing the rugged electrical capacity needed for heavy-duty commercial refrigeration parts. Whether you are performing a field replacement or a new system integration, this mechanical cold control ensures the accuracy required for food safety and operational efficiency.

• Precise Thermal Sensing: Features an 84-inch vapor-filled capillary for accurate temperature detection across large refrigeration units.
• Constant Differential Design: Maintains a 15.5°F differential to prevent short-cycling and protect the compressor.
• Universal Adaptability: Includes a break-off shaft and mounting kit, making it a versatile Ranco cross-reference for numerous OEM controls.
• Industrial Durability: Equipped with high-amperage contacts and stainless steel bellows for long-term service in demanding environments.
• Flexible Application: Rated for both 120V and 240V AC, suitable for a wide range of appliance and commercial cooling equipment.

What is the temperature range for the Ranco A30-304?
This control features a normal "off" temperature of -6°F and a cold "off" of 21.5°F, making it suitable for low-to-medium temperature applications including ice production and frozen storage.

Can the Ranco A30-304 be used to replace a SPDT control?
The A30-304 is an SPST refrigeration control. If your existing system requires a Single Pole Double Throw (SPDT) configuration for a changeover or alarm circuit, this model will not be compatible as it only features a single circuit path.

Does this unit include the mounting hardware?
Yes, the package typically includes a universal mounting bracket, a break-off shaft, and a dial knob to simplify the replacement process across different brands of refrigeration equipment.

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.