Johnson Controls Digital Temperature Controller A421AEC-01C 120/240 VAC SPDT Nema 4X A421AEC-01C
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In Stock
SKU
281-32288B22
Johnson Controls Digital Temperature Controller A421AEC-01C 120/240 VAC SPDT Nema 4X
The Johnson Controls Digital Temperature Controller A421AEC-01C is a versatile and reliable solution for controlling single-stage refrigeration or HVAC equipment. With a wide ambient temperature range of -40 to 212°F, this controller can be used in a variety of applications, including commercial and industrial settings. The digital display and advanced programming menu make it easy to adjust temperature settings and monitor system performance. The controller also features a type 4X (NEMA) IP66 watertight enclosure, ensuring durability and resistance to corrosion. Suitable for use in harsh environments, this controller is an ideal choice for applications where temperature control is critical.
Top product features:
- Basic and advanced programming menu
- On/off temperature adjustment switch
- Adjustable anti-short cycle delay
Top product applications:
- Single-stage refrigeration equipment control
- HVAC equipment control
- Temperature control for ambient temperatures ranging from -40 to 212°F
Johnson controls digital temperature controller a421aec-01c 120/240 vac spdt nema 4x the a421 series controls are single stage line-voltage electronic temperature controls with a single-pole double-throw (spdt) output relay. These can be used to control a wide variety of single-stage refrigeration or hvac equipment with an ambient temperature range of -40 to 212°f. Model a421aec-01c features type 4x (nema) ip66 watertight corrosion-resistant enclosure suitable for surface mount and rated for either 120 or 240 vac. Includes a99bb-25c ptc temperature sensor with a 2 in. Standard probe and 9-7/8 in. Pvc cable. Features ul stylemargin-top0px; padding-top 5px; padding-bottom 5px; control front panel lcd basic and advanced programming menu on/off temperature adjustment switch-activated temperature setback adjustable anti-short cycle delay adjustable sensor offset optional restricted adjustment mode sensor failure mode
Additional Information
- UPC: 066201153665
- UNSPSC: 41112205
- Brand: Johnson Controls Inc
- Package Quantity: 1
- Country of Origin: MX
- FOB Origin: NY
- Ships by: PARCEL
- Comes in a kit: No
- Newly added to catalog: No
- Item is on Clearance: No
- Contains Hazardous Materials: No
- CA Proposition 65 Applies: No
- Package Length: 2.50
- Package Width: 2.44
- Package Height: 5.00
- Package Weight: 2.00
Product info last updated on February 25, 2026 9:59am UTC
Category: Thermostats and Temperature Controls