A421ABT-02C Johnson Controls Temperature Control
KKM Solutions is an independent parts distributor, not an authorized Johnson Controls dealer — how we source.
Overview
Part number A421ABT-02C from Johnson Controls, listed in Temperature Sensors. KKM Solutions quotes this part with pricing and availability confirmed per order.
Overview The Johnson Controls A421ABT-02C is a line-voltage electronic single-stage temperature control with an integrated duty-cycle timer. Designed for free-cooling and ventilation applications, it features a bright backlit LCD screen with adjustable brightness and a simple three-button touchpad interface. It comes housed in a NEMA 1/IP20 high-impact thermoplastic enclosure suitable for surface or DIN rail mounting. Features Integrated duty-cycle timer for timed ventilation and overcooling protection Easy-to-read backlit LCD display with customizable brightness levels Three-button touchpad interface for basic and advanced programming Adjustable On and Off temperature setpoints for heating or cooling applications High and low temperature setpoint stops to restrict unauthorized user adjustments Temperature offset capability to align displayed temperature with actual sensed temperature Adjustable anti-short cycle delay to protect compressors from short cycling Switch-activated temperature setback option via binary input control circuit Specifications Supply Voltage: 120/240 VAC, 50/60 Hz Power Consumption: 1.8 VA maximum Temperature Control Range: -40°F to 212°F (-40°C to 100°C) Output Relay: Single-Pole, Double-Throw (SPDT) Control Accuracy: Less than +/- 1.8°F (+/- 1.0°C) Enclosure Rating: NEMA 1, IP20 high-impact thermoplastic Sensor Type: A99 PTC temperature sensor (1,035 ohm at 77°F), includes A99BB-200C sensor with 6.6 ft cable and 2-inch probe Approvals: cULus Listed, FCC Compliant, CE Mark Applications Agricultural ventilation and free-cooling systems Duty-cycle ventilation monitoring Commercial refrigeration equipment control HVAC temperature regulation systems
Product details
| Manufacturer | Johnson Controls |
|---|---|
| Manufacturer part number | A421ABT-02C |
| Product category | Temperature Sensors |
Request a quote for this part
Email orderdesk@kkmsolutions.com or call (825) 454-5367 for pricing and availability.
Frequently Asked Questions
How much does A421ABT-02C cost?
A421ABT-02C is listed at CA$253.72 (CAD) and can be ordered directly from this page with Add to Cart. That figure is a reference price and can change: your card is authorized at checkout and charged only once our order desk confirms the part, stock, and final price, and we email you first if anything has moved. Larger quantities or custom terms — email orderdesk@kkmsolutions.com for a volume quote.
Who manufactures the A421ABT-02C?
A421ABT-02C is made by Johnson Controls and is listed in our Temperature Sensors category. KKM Solutions is an independent distributor, not an authorized Johnson Controls dealer: we source the exact Johnson Controls part number A421ABT-02C, and the quote confirms condition and lead time before you order.
Is the A421ABT-02C new and genuine?
Parts we supply are new and genuine unless the quote expressly states otherwise. Where a part is surplus, new-old-stock, refurbished or open-box, the quote says so before you approve it.
What warranty comes with the A421ABT-02C, and can I return it?
Parts we supply are warranted against manufacturing defects for 1 year from the date of delivery; where the manufacturer's own warranty is longer, the manufacturer's warranty applies. The warranty covers repair, replacement, or credit of the defective part and does not cover normal wear items, misapplication, improper installation, or consequential damages. Contact us within 30 days of delivery before returning anything — all returns need a return authorization from the order desk.
What is the lifecycle status of A421ABT-02C?
No published lifecycle status is on file for A421ABT-02C. Johnson Controls lists whether a catalog number is current, superseded or end-of-life on its own product page, and our order desk confirms the status with the manufacturer at quote time, before you commit. Send the part number through the quote form on this page.
How quickly can A421ABT-02C ship?
Lead time for A421ABT-02C is quoted per order and confirmed on your quote, which our order desk sends within 1 business day. For a line-down emergency, call the 24/7 order desk at (825) 454-5367.
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