Single-stage electronic temperature control with SPDT relay output for HVAC and refrigeration equipment. Features bright backlit LCD display, three-button touchpad interface, and adjustable anti-short cycle delay. Temperature range -40 to 212°F. 24V AC, 100VA, Type 1 NEMA IP20 plastic enclosure suitable for surface or DIN rail mounting. Includes A99 Series temperature sensor.
Johnson Controls A421GBF-02C Electronic Temperature Control 24V
Johnson Controls
$121.95
In Stock — 10+ available
- Fits brands
- Johnson Controls
- SKU:
- A421GBF-02C
- Product Type:
- Electronic Temperature Control
- Subcategory:
- Single-Stage
- Application:
- Residential/Commercial
- System Type:
- Boiler, Chiller, Furnace, Air Handler, Refrigeration
- Installation Type:
- OEM Replacement
- Voltage:
- 24V AC
- Voltage Class:
- Low Voltage
- Mounting Type:
- Surface Mount, DIN Rail
- Temperature Range:
- -40 to 212°F
- Material:
- High-Impact Plastic
- Control Type:
- Non-Programmable
- Switch Action:
- SPDT