Johnson Controls A421AED-01C Electronic Temperature

Johnson Controls A421AED-01C is an electronic single-stage temperature control engineered for reliable HVAC and refrigeration performance. This rugged device accepts 120/240 VAC input and carries UL Type 4X and IP66 ratings, delivering durable protection for demanding environments.

Equipped with SPDT output for flexible defrost and cooling control, the A421AED-01C delivers precise temperature regulation across commercial refrigeration, food service equipment, and industrial chillers. The integrated 0.25 m (9") temperature sensor spans -40°F to 212°F, enabling fast, accurate responses to changing loads.

• Electronic single-stage temperature control for reliable cooling and defrost cycles across food service equipment and industrial cooling.
• Wide input compatibility with 120/240 VAC to fit standard commercial panels.
• UL Type 4X / IP66 enclosure provides superior protection against dust, moisture, and wash-downs.
• SPDT output enables flexible wiring for compressors, fans, and defrost relays.
• Defrost-ready design optimized for commercial refrigeration and HVAC systems.
• 0.25 m (9") temperature sensor covers -40°F to 212°F for fast, accurate sensing.