Johnson Controls A421ABC-02C Electronic Temperature Control

The Johnson Controls A421ABC-02C Electronic Temperature Control delivers precise temperature management for HVAC and refrigeration systems. Built for reliability in demanding commercial environments, this 1-stage controller supports flexible installation with DIN Rail and surface mounting, and includes the A99BB-200C temperature sensor for immediate setup. It is designed for 1-stage refrigeration and HVAC applications.

Equipped with a Type 6 foot 7-1/5 inch cable, it provides versatile wiring options in control panels. The unit handles 120/240 Volt AC to power and regulate system demand, and its NEMA 1, IP20 enclosure offers solid protection where space is constrained. This controller is ideal for compact panel layouts, delivering stable temperature regulation and dependable performance across varying loads.

• 1-Stage Electronic Temperature Control designed for precise refrigeration and HVAC temperature regulation in commercial panels
• DIN Rail and Surface Mounting options for flexible installation in existing control enclosures
• NEMA 1, IP20 enclosure protects sensitive electronics from dust and incidental contact
• 6 ft 7-1/5 in cable provides long, flexible wiring for awkward or tight installations
• 120/240 VAC contact rating supports common power supplies in industrial environments
• Includes A99BB-200C temperature sensor for immediate temperature sensing