Description
The Johnson Controls A421GBF-02 is a versatile electronic temperature controller engineered for precise, reliable temperature management across a wide range of commercial and industrial HVAC applications. Powered at 24 VAC, this controller delivers accurate single-stage control with an impressive operating range of -40°F to 212°F, making it suitable for refrigeration, heating, cooling, and process control applications alike.
The A421GBF-02 features a front-panel LCD for easy, at-a-glance monitoring and setpoint adjustment without the need for additional tools or remote displays. Its NEMA 1-rated enclosure ensures dependable performance in standard indoor environments, while flexible mounting options — DIN rail or surface mount — allow for straightforward installation in a variety of panel and field configurations.
Included in the box is a temperature sensor with a 6.6-foot cable lead, providing immediate out-of-the-box functionality and eliminating the need for a separate sensor purchase.
Key Features
- Electronic single-stage temperature controller
- 24 VAC power supply
- Wide temperature control range: -40°F to 212°F (-40°C to 100°C)
- Front-panel LCD for easy setpoint viewing and adjustment
- NEMA 1 enclosure rating for standard indoor use
- Flexible mounting: DIN rail or surface mount
- Includes temperature sensor with 6.6-foot (2 m) cable lead
Applications
- Commercial refrigeration and freezer control
- HVAC heating and cooling equipment
- Process temperature monitoring and control
- Fan, compressor, and valve staging
- Industrial panel and field installations
Specifications
- SKU: A421GBF-02
- Brand: Johnson Controls
- Supply Voltage: 24 VAC
- Temperature Control Range: -40°F to 212°F
- Display: Front Panel LCD
- Enclosure Rating: NEMA 1
- Mounting: DIN Rail or Surface Mount
- Sensor Cable Length: 6.6 feet (included)
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