Johnson Controls A421GBF-02C Electronic Temp Control SPDT 24-240V -40-212F

Johnson Controls A421GBF-02C Electronic Temperature Control (A421 Series)

SPDT Output | 24/120/208/240V | -40°F to 212°F | LCD Display

The Johnson Controls A421GBF-02C is a professional-grade A421 Series electronic temperature controller designed for single-stage heating or cooling applications. It features an SPDT output relay and an easy-to-read backlit LCD display.

This controller is widely used in HVAC, refrigeration, walk-in cooler/freezer systems, and industrial temperature control panels.

Key Specifications

• Temperature Control Range: -40°F to 212°F

• Switching Output: SPDT relay

• Voltage: 24/120/208/240V

• Electrical Rating:

  • 16A @ 120V

  • 9.2A @ 208V

  • 8A @ 240V

Features & Benefits

• Bright backlit LCD with adjustable brightness

• Touchpad interface (can restrict user adjustments)

• LED relay status indicator

• Adjustable anti-short cycle delay

• Temperature setback and sensor offset capability

• Can be rail-mounted or surface-mounted

• Includes A99BB-200C temperature sensor (per product description)

Model: A421GBF-02C
REM#: 3R499AB
Condition: Brand New

Important Notice – Propane Parts, Accessories, and Regulators

This product, including but not limited to propane parts, accessories, fittings, hoses, valves, and regulators, must be installed and serviced by a licensed professional in accordance with all applicable local, state, and federal codes, regulations, and standards.

The seller assumes no responsibility for the installation, inspection, application, maintenance, or use of this product.

It is the sole responsibility of the buyer to ensure the product is appropriate for their intended application and that it is installed correctly by a qualified individual.

Improper installation, maintenance, or use of propane products may result in serious injury, death, fire, explosion, or property damage.

The buyer accepts all risks, liabilities, and potential consequences associated with the use of this product.

By purchasing this item, the buyer acknowledges that they have read, understood, and agreed to these terms and confirm that installation and use will be conducted by a properly licensed and qualified professional.