Johnson Controls A19ABA-44 Thermostat

The Johnson Controls A19ABA-44 is a heavy-duty, single-pole single-throw (SPST) utility thermostat engineered for precision temperature regulation in demanding HVACR environments. Designed to operate across a broad -30 to 100 degree Fahrenheit temperature range, this controller is ideal for commercial refrigeration, walk-in coolers, and industrial heating applications. The unit features a 3-foot capillary and a 3/8" x 4" remote sensing bulb, providing the flexibility needed for accurate monitoring of air or liquid temperatures in tight spaces. For contractors looking for the A19ABA-44C, this model is an identical direct replacement, ensuring seamless integration into existing control circuits.

Operating on 120/208/240 Vac, the A19ABA-44 utility thermostat includes a screwdriver range adjuster and an automatic reset mechanism to maintain consistent system uptime. The liquid-filled sensing element provides superior "repeat" accuracy that remains unaffected by barometric pressure or cross-ambient temperature shifts. This Johnson Controls thermostat is built for reliability, featuring snap-acting contacts housed in a rugged enclosure to protect against dust and debris common in mechanical rooms and farm settings.

• Versatile Voltage Compatibility: Supports 120/208/240 Vac applications, making it a standard stock item for diverse service calls.
• Wide Operating Range: The -30?F to 100?F range allows for specialized use in both low-temp refrigeration and ambient heating control.
• Precise Calibration: Features a screwdriver slot adjustment to prevent unauthorized setpoint tampering and ensure system stability.
• Flexible Installation: The 3-foot capillary lead and remote bulb design allow for mounting the control in accessible areas while sensing in the airflow or liquid.
• Industrial Strength: Equipped with automatic reset and a dust-protected switch for long-term performance in harsh environments.

Is the A19ABA-44 compatible with 277V systems?
While this model is rated for 120/208/240 Vac, always verify your specific inductive and non-inductive load requirements against the unit's pilot duty ratings before wiring.

What is the difference between the A19ABA-44 and the A19ABA-44C?
There is no functional or technical difference; the A19ABA-44 is identical to the A19ABA-44C and can be used interchangeably in all applications.

Can I use this for liquid immersion?
Yes, the 3/8" x 4" bulb can be used for liquid sensing, though it is recommended to use a bulb well (WEL14A series) for closed tank applications to prevent leaks and protect the sensing element.

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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.