Description
The Johnson Controls A421ABG-02 is a versatile electronic temperature controller engineered for reliable performance across a wide range of commercial and industrial HVAC and refrigeration applications. Featuring a broad operating range of -40°F to 212°F, this controller delivers precise temperature management with intuitive front-panel controls and a clear LCD display.
Key Features
- Electronic temperature control with front panel LCD for easy setpoint viewing and adjustment
- Wide temperature control range: -40°F to 212°F (-40°C to 100°C)
- 120 VAC power supply with included power cord for quick installation
- SPDT (Single Pole Double Throw) output relay for flexible heating or cooling control
- NEMA 1 enclosure for indoor use in clean, dry environments
- Supports DIN rail or surface mount installation for versatile placement
- Includes temperature sensor with 6-foot cable and 2-inch probe for immediate deployment
Electrical Specifications
- Voltage: 120 VAC
- Output Type: SPDT relay
- Power: Includes power cord
Temperature Specifications
- Control Range: -40°F to 212°F
- Display: Front panel LCD
Enclosure & Mounting
- Enclosure Rating: NEMA 1
- Mounting Options: DIN rail or surface mount
Included Accessories
- Temperature sensor with 6-foot cable
- 2-inch immersion probe
- Power cord
Applications
- Refrigeration and freezer temperature control
- Heating and cooling system staging
- HVAC equipment protection and monitoring
- Commercial food service and cold storage
- Industrial process temperature management
The A421ABG-02 is a trusted Johnson Controls solution for contractors and facility managers who need a dependable, easy-to-install electronic temperature controller with a broad sensing range and flexible mounting options. The included sensor and power cord make this a true out-of-the-box solution for a wide variety of temperature control challenges.
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