- Easy-to-read, bright, adjustable backlit LCD screen displays the temperature, parameters
- Adjustable On and Off temperature set points enable easy to set up cooling or heating control
- Basic and advanced programming menus allow you to easily set up your control application on the LCD using a simple three-button touchpad interface
- Package Weight : 4 pounds
The A421 Series Electronic Temperature Controls are single-stage controls with a single-pole, double-throw (SPDT) output relay. A421 Controls feature a bright backlit LCD with adjustable brightness and a three-button touchpad interface that can be set up to restrict user adjustments. An LED indicates the output relay's On/Off status. Standard A421 Series control modules have simple On and Off temperature settings for heating or cooling, an adjustable anti-short cycle delay, temperature setback, and sensor offset capability. The temperature control range is -40 to 212°F or -40 to 100°C. The A421 controls are available either in Type 1 (NEMA), IP20 (CE), high-impact plastic enclosures suitable for surface or DIN rail mounting or in Type 4X (NEMA), IP67 (CE) watertight, corrosion resistant surface mount enclosures.
- Package Dimensions : 5.16 x 4.92 x 1.73 inches; 2.08 ounces
- Date First Available : August 23, 2018
- Manufacturer : Johnson Controls Inc
