Description
The Johnson Controls A19BBC-4 is a heavy-duty utility thermostat engineered for demanding commercial and industrial HVAC applications. Featuring a wide operating voltage range and a broad temperature sensing range, this thermostat delivers reliable, precise control in environments where performance and durability are non-negotiable.
Key Features
- Wide supply voltage compatibility: 120/208/240 Vac — suitable for a broad range of commercial electrical systems
- Temperature sensing range of -30°C to +40°C (-22°F to +104°F) for versatile cold and ambient environment control
- SPDT (Single-Pole, Double-Throw) switching action enables both heating and cooling control configurations
- Stainless steel coiled sensing element for superior corrosion resistance and long-term sensing accuracy
- Adjustable differential temperature setting allows fine-tuned control of the switching dead band
- Automatic reset operation restores normal function once temperature returns within the set range — no manual intervention required
- Convertible setpoint adjustment provides installation flexibility for a variety of control configurations
Application
The A19BBC-4 is ideal for use in refrigeration, freezer, cold storage, and general HVAC utility control applications. Its stainless steel sensing element and robust construction make it well-suited for harsh or corrosive environments. The SPDT output supports a wide variety of load types, including fans, compressors, valves, and other HVAC equipment.
Specifications
- Brand: Johnson Controls
- Model / SKU: A19BBC-4
- Supply Voltage: 120/208/240 Vac
- Temperature Range: -30°C to +40°C (-22°F to +104°F)
- Switch Type: SPDT (Single-Pole, Double-Throw)
- Sensing Element: Stainless Steel Coiled
- Differential: Adjustable
- Reset Type: Automatic
- Setpoint Adjustment: Convertible
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