Johnson Controls Digital Temperature Controller A421ABC-04C 120/240 VAC SPDT Nema 1 A421ABC-04C
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In Stock
SKU
281-32290B22
Johnson Controls Digital Temperature Controller A421ABC-04C 120/240 VAC SPDT Nema 1
The Johnson Controls Digital Temperature Controller A421ABC-04C is a versatile and reliable solution for controlling single-stage refrigeration or HVAC equipment. Suitable for a wide range of applications, including commercial and industrial settings, this controller features a user-friendly front panel with LCD display and basic and advanced programming menus. Its adjustable temperature setback, anti-short cycle delay, and sensor offset capabilities ensure precise temperature control and prevent energy waste. Ideal for use in environments with ambient temperatures ranging from -40 to 212°F, this controller is a valuable addition to any facility seeking efficient and reliable temperature management.
Top product features:
- Single-stage line-voltage electronic temperature controls with a single-pole double-throw (SPDT) output relay.
- Control front panel LCD basic and advanced programming menu.
- Adjustable anti-short cycle delay and adjustable sensor offset.
Top product applications:
- Single-stage refrigeration equipment
- HVAC equipment
- Surface or DIN rail mounting in various industrial settings
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-04c 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-400c ptc temperature sensor with a 2 in. Standard probe and 13.1 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: 066201153660
- 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 April 10, 2026 4:45pm UTC
Category: Thermostats and Temperature Controls