Penn A70GA-1 Low Temperature Cutout Thermostat (4-Wire, 2-Circuit, Range 15–55°F)

Item Specifics

·         Brand: Penn (Johnson Controls)

·         Model: A70GA-1 (also known as A70GA-1C)

·         MPN: A70GA-1 / A70GA-1C

·         Type: Low Temperature Cutout / Temperature Control

·         Contact Configuration: 4-Wire, 2-Circuit (Main contacts open on temperature drop; auxiliary contacts close simultaneously)

·         Temperature Range: 15°F to 55°F (–9°C to 13°C) with stop at 35°F (1.7°C)

·         Differential: Approximately 5°F (2.8°C), non-adjustable

·         Sensing Element: Vapor pressure bulb, 20 ft (6.1 m) capillary

·         Maximum Overrun Temperature: 400°F (204°C)

·         Application: Coil freeze protection, HVAC air handling units, ventilation systems

·         Condition: New Open-Box (never installed)

·         Country/Region of Manufacture: Mexico

·         Included: Thermostat unit with coiled sensing element and installation document

·         Keywords: A70GA-1, Penn controls, Johnson Controls thermostat, freeze protection, 4-wire 2-circuit

Product Description


For sale is a new open-box Penn A70GA-1 Low Temperature Cutout Thermostat.
This model is the 4-wire, 2-circuit version designed to open main contacts on temperature drop and close auxiliary contacts simultaneously.
It operates in the range of 15°F to 55°F (–9°C to 13°C) with a fixed differential of approximately 5°F (2.8°C).
The sensing bulb is 20 ft long, suitable for coil freeze protection in HVAC and air handling systems.
Manufactured by Johnson Controls under the Penn brand, this unit ensures reliable temperature control and system safety in industrial and commercial HVAC applications.

Technical Specifications

·         Main Contacts (LINE–M1/M2): Open on temperature drop

·         Auxiliary Contacts: Close on temperature drop

·         Reset Type: Automatic

·         Range: 15°F to 55°F (–9°C to 13°C)

·         Fixed Differential: 5°F (2.8°C)

·         Maximum Overrun Temperature: 400°F (204°C)

·         Sensing Element: 20 ft vapor pressure bulb

·         Element Pressure Type: Vapor Pressure

·         Application: HVAC coil freeze protection, low-limit thermostat

Condition Details

New Open-Box: The thermostat has never been installed or used.
It includes the coiled copper sensing element and mounting hardware.
The original packaging may show minor signs of handling.
Country of Origin: Mexico.

“International buyers may be responsible for import duties, taxes, and fees charged by your country’s customs office.