- Refrigeration Equipment
- AC and Heating Equipment
- Indoor Air Quality
- Food Service
- Compressors
- Motors and Accessories
- Refrigerants and Chemicals
-
Controls and Electrical
- Thermostat
- Commercial Building
- Defrost Termination-Freeze Protection-Fan Switches
- Detector
- Electrical Devices and Accessories
- Flow Switch-Current Sensors
- Heating
- Humidity
- Motor Drives
- Pneumatic
- Pressure
- Supermarket Controls and Parts
- Temperature
- Timer
- Water Regulating Valve
- Zone Control and Wireless
-
Float Switch
-
Security Camera
- Parts and Components
- Supplies and Service
- Retired and Closeouts
Product Categories
-
Product Categories
- Refrigeration Equipment
- AC and Heating Equipment
- Indoor Air Quality
- Food Service
- Compressors
- Motors and Accessories
- Refrigerants and Chemicals
- Adhesives-Threadlock View
- Coil Cleaner View
- Coil Coating View
- Coil Degreaser View
- Degreaser View
- Electric Contact Cleaner View
- Food Grade Silicone View
- Glycols View
- Leak Detection View
- Leak Sealant View
- Lubricants View
- Pump Protector View
- Refrigerant Treatments View
- Solvent View
- Wasp and Hornet Spray View
- Zinc Spray View
- Controls and Electrical
- Thermostat
- Commercial Building
- Defrost Termination-Freeze Protection-Fan Switches
- Detector
- Electrical Devices and Accessories
- Flow Switch-Current Sensors
- Heating
- Humidity
- Motor Drives
- Pneumatic
- Pressure
- Supermarket Controls and Parts
- Temperature
- Timer
- Water Regulating Valve
- Zone Control and Wireless
- Float Switch
- Security Camera
- Parts and Components
- Supplies and Service
- Retired and Closeouts
-
New & Featured
Shopping Made Easy
Tools for Every Job
Contractor Spotlight
Tools
Subscriptions
Credit Account
- All Brands
- Copeland
- Sporlan
- Heatcraft
- Arcoaire
- Bohn
- IRP
- National Refrigerants
- NRP
- Sea Breeze
Catalog pricing shown. Please Sign In to see your pricing.
A28AA4
A28AA4
Temperature control, space, coiled bulb, 2-SPDT 30 to 110°F, 3.5°F fixed differential, 3°F fixed interstage differential, 8 Amps 240 V
- Vendor Name:
- Johnson Controls
- URI Part Number:
- A28AA4
- Vendor Part Number:
- A28AA4C
- Length (In.):
- 6.20
- Width (In.):
- 2.70
- Height (In.):
- 2.60
- Shipping Weight (Lbs.):
- 0.96
- Contact Rating (Amps):
- 8
- Differential:
- 3 1/2, Fixed
- Sensor Length:
- 1 3/8" x 2 1/4
- Switch:
- 2-SPDT
- Prop65:
- WARNING: This product contains chemicals known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov
Temperature sensing applications requiring two-stage space control of HVAC/refrigeration equipment.
