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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.
| Color | Gray |
|---|---|
| Brand Name | Johnson Controls |
| Unit Count | 1.0 Count |
| Item Weight | 8 ounces |
| Display Type | LCD |
| Manufacturer | Johnson Controls Inc |
| Material Type | Copper |
| Item Type Name | Johnson Controls |
| Operating Temperature | 212 Degrees Fahrenheit |
| Item Dimensions L x W x H | 1.18"L x 6.3"W x 6.61"H |
| Global Trade Identification Number | 10785028625240 |
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