Johnson Controls A28MA-1C Penn Series A28 Two-Stage Temperature Control with Weatherproof Enclosure, Two-SPDT Switch Action, 4 to 49 Degree C Range, 3/8 x 4 Bulb, 6 Ft Capillary

Product Description

The Johnson Controls A28MA-1C Penn Series A28 is a versatile two-stage temperature control device designed for a range of industrial applications. Featuring a weatherproof NEMA 3R enclosure and two single-pole, double-throw (SPDT) switches, it ensures reliable operation in various environments.

• Rugged steel enclosure
• Uniform control with liquid-filled sensing element
• Ideal for cooling towers and evaporative condensers

Product Highlights

This temperature control unit from Johnson Controls is ideal for applications requiring precise temperature regulation. It can effectively manage sump water temperature for cooling towers and fan cycling control for air-cooled condensers.

Product Information

Standard Information

• Breadcrumb: Industrial & Scientific > Test, Measure & Inspect > Temperature & Humidity > Temperature Controllers
• Category: Temperature Controllers

Technical Specifications

• Voltage: 120/208/240VAC
• Bulb Length: 4 inches
• Switch Type: SPDT
• Differential: 5 Degrees F (Each Stage), 8 Degrees F (Between Stage)
• Bulb Diameter: 3/8 inch
• Control Range: 40 Degrees to 120 Degrees F
• Overall Depth: 3 1/4 inches
• Overall Width: 4 5/8 inches
• Switch Action: Open/Close on Rise
• Overall Height: 4 5/8 inches
• Changeover Type: Manual
• Differential Type: Fixed
• Temperature Scale: Fahrenheit
• Enclosure Material: Steel
• Switch Type/Action: SPDT, Open/Close on Rise
• Enclosure NEMA Rating: NEMA 3R
• Compatible System Type: Condenser Fan Control, Tower Fan Control
• Thermostat Switch Type: SPDT
• Number of Cooling Stages: 2
• Number of Heating Stages: 2
• Temperature Differential: 8/5 Degrees F
• Temperature Control Range: 40 Degrees to 120 Degrees F
• Maximum Control Temperature: 120 Degrees F
• Minimum Control Temperature: 40 Degrees F
• Maximum Operating Temperature: 210 Degrees F
• Minimum Operating Temperature: -35 Degrees F
• Capillary Length/Bulb Diameter: 6 ft Capillary, 4 in x 3/8 in Bulb