Johnson Controls A421AED-02 SPDT Electronic Temperature Control 120/240V W/6' Sensor & NEMA 4 Enclosure

The Johnson Controls A421AED-02 is a single pole, double throw electronic temperature control in HVAC systems to control temperature. This device works at 120-240V and has a remote bulb sensor with a temperature range of -40°F to 212°F. This temperature control sensor operates by measuring the temperature and switching ON or OFF HVAC equipment depending on the set temperature limits. It is widely applied in refrigeration, heat pumps, and air conditioning equipment. The SPDT connection type provides the possibility of connecting with different control systems.