Description
The Johnson Controls A19ABA-45 is a heavy-duty utility thermostat engineered for reliable temperature control across a wide range of commercial and industrial HVAC applications. With a broad operating range of -30°F to 100°F and multi-voltage compatibility, this thermostat delivers versatile performance in demanding environments.
Key Features
- Wide temperature range: -30°F to 100°F (-34°C to 38°C) for cold storage, freezer, and low-ambient applications
- Multi-voltage operation: compatible with 120, 208, and 240 VAC systems
- SPST (Single-Pole, Single-Throw) switching action — Open on Temperature Rise (Open Low)
- Automatic reset for hands-free operation after setpoint is reached
- Adjustable differential allows fine-tuning of the control range to match system requirements
- 3-foot capillary length provides flexible sensor placement away from the control body
- Screwdriver range adjuster for easy, tool-accessible setpoint calibration
Specifications
- SKU: A19ABA-45
- Brand: Johnson Controls
- Voltage: 120 / 208 / 240 VAC
- Temperature Range: -30°F to 100°F
- Switch Type: SPST — Open on Temperature Rise (Open Low)
- Reset Type: Automatic
- Differential: Adjustable
- Capillary Length: 3 feet
- Range Adjustment: Screwdriver-accessible
Applications
- Commercial refrigeration and cold storage temperature control
- Low-ambient HVAC equipment protection
- Industrial process temperature switching
- Freeze protection and low-temperature alarm circuits
- Unit coolers, walk-in coolers, and freezer compartments
The A19ABA-45 is built to Johnson Controls’ exacting standards, offering durable construction and dependable switching performance. The adjustable differential and screwdriver-accessible setpoint adjuster make installation and commissioning straightforward for HVAC technicians and controls specialists alike.
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