Johnson Controls Digital Temperature Controller A421ABC-02C 120/240 VAC SPDT Nema 1 A421ABC-02C
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In Stock
SKU
281-32292B22
Johnson Controls Digital Temperature Controller A421ABC-02C 120/240 VAC SPDT Nema 1
The Johnson Controls Digital Temperature Controller A421ABC-02C is a versatile and reliable solution for controlling single-stage refrigeration or HVAC equipment. Its single-pole double-throw (SPDT) output relay allows for precise temperature control, while its ambient temperature range of -40 to 212°F makes it suitable for a wide range of applications. The control's front panel features a basic and advanced programming menu, making it easy to adjust temperature settings, activate setback, and adjust sensor offset. Ideal for use in commercial and industrial settings, this controller is perfect for applications such as walk-in coolers, freezers, and HVAC systems.
Top product features:
- Single-stage line-voltage electronic temperature controls with a single-pole double-throw (SPDT) output relay.
- Features a basic and advanced programming menu on the control front panel for temperature adjustment and setup.
- Includes a PTC temperature sensor with a 2 in. standard probe and 6.6 ft. PVC cable for sensing temperature.
Top product applications:
- Single-stage refrigeration equipment
- HVAC equipment
- Automated temperature control systems for commercial or industrial applications
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 a421abc-02c features standard type 1 (nema) ip20 high-impact plastic enclosure suitable for surface or din rail mounting and rated for either 120 or 240 vac. Includes a99bb-200c ptc temperature sensor with a 2 in. Standard probe and 6.6 ft. 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: 066201153650
- 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 14, 2026 10:47am UTC
Category: Thermostats and Temperature Controls