Description
The Johnson Controls A421ABD-02 is a versatile, electronic temperature controller engineered for demanding HVAC and refrigeration applications. Featuring a wide operating range and a built-in off-cycle defrost timer, this controller delivers reliable, precise temperature management in a compact, easy-to-install package.
Overview
Designed for both commercial and light industrial environments, the A421ABD-02 combines a broad temperature control range with intuitive front-panel programming. Its NEMA 1 enclosure and flexible mounting options make it suitable for a variety of installation scenarios, while the included sensor and cable ensure you have everything needed to get up and running quickly.
Key Features
- Electronic temperature controller with off-cycle defrost timer function
- Wide temperature control range: -40°F to 212°F (-40°C to 100°C)
- Dual-voltage input: 120/240 VAC for flexible power compatibility
- Front-panel LCD display for easy setpoint viewing and adjustment
- NEMA 1 enclosure for indoor installation protection
- DIN rail or surface mount options for versatile installation
- Includes temperature sensor with 6.6 ft. (2 m) cable and 2″ probe
- Off-cycle defrost timer helps protect refrigeration equipment and reduce energy consumption
Specifications
- SKU: A421ABD-02
- Brand: Johnson Controls
- Voltage: 120/240 VAC
- Temperature Control Range: -40°F to 212°F (-40°C to 100°C)
- Display: Front Panel LCD
- Enclosure Rating: NEMA 1
- Mounting: DIN Rail or Surface Mount
- Sensor Cable Length: 6.6 ft. (2 m)
- Probe Length: 2″
- Defrost Type: Off-Cycle
Applications
- Walk-in coolers and freezers
- Refrigerated display cases
- HVAC equipment with defrost requirements
- Industrial process temperature control
- Commercial refrigeration systems
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