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Johnson Controls - A421ABD-02C A421ABD-2C Electronic Temperature Control, Single Stage
The A421 Series Electronic Temperature Controls are single-stage controls with a single-pole, double-throw output relay.
Johnson Controls - A421ABD-02C A421ABD-2C Electronic Temperature Control, Single Stage
Item #: 11341052

Johnson Controls - A421ABD-02C A421ABD-2C Electronic Temperature Control, Single Stage

Item #: 11341052

BHD 67

Price Details

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The A421 Series Electronic Temperature Controls are single-stage controls with a single-pole, double-throw output relay.
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

Precision Temperature Control
Achieve accurate temperature settings with advanced electronic controls, ensuring optimal comfort and efficiency in your environment while minimizing energy consumption.
User-Friendly Interface
Featuring an intuitive digital display, the interface makes it simple for users to set and monitor temperatures effortlessly, enhancing overall usability for all skill levels.
Energy Efficiency
Designed to lower energy consumption, this control unit not only saves money on bills but also promotes a sustainable approach to climate management without sacrificing performance.

Product Details

Shop Johnson Controls - A421ABD-02C A421ABD-2C Electronic Temperature Control, Single Stage online at a best price in Bahrain. B01IWJO25E
Item Weight1.5 lbs (680 grams)

Who Should Buy?

Suitable For
  • Homeowners

    Ideal for homeowners looking to optimize energy efficiency and maintain comfortable home temperatures automatically.

  • HVAC Professionals

    Great for HVAC technicians needing reliable temperature control solutions for installations and repairs.

  • Businesses

    Beneficial for businesses requiring consistent climate control for premises to ensure comfort for employees and customers.

Not Suitable For
  • Budget Shoppers

    Not suitable for individuals seeking low-cost options as it may come with a higher price point.

  • DIY Beginners

    May overwhelm those inexperienced with technology and installation, requiring professional assistance for optimal use.

  • Small Spaces

    Not ideal for very small spaces where a simple manual thermostat may suffice to save costs and complexity.

Product Description

Johnson Controls - A421ABD-02C A421ABD-2C Electronic Temperature Control, Single Stage

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is the temperature range of the Johnson Controls A421ABC-02C thermostat?

    Answer: The Johnson Controls A421ABC-02C features a temperature range of 40 to 212 degrees Fahrenheit. This broad range makes it suitable for various applications, including HVAC systems, refrigeration units, and industrial processes. By covering such a wide spectrum, it caters to both low and high-temperature environments, ensuring optimal control and efficiency. For example, it can be used in a walk-in cooler to maintain temperature or in a heating application to prevent overheating.
  • Question: How does the Single-Pole, Double-Throw (SPDT) configuration work?

    Answer: The Single-Pole, Double-Throw configuration allows the A421ABC-02C to control two different circuits. It features a common terminal that connects to one of two outputs, giving flexibility in controlling devices like heaters or cooling systems based on the temperature set point. SPDT is beneficial in applications where you want to switch between heating and cooling modes based on temperature variations, making it a versatile choice for climate control solutions in buildings.
  • Question: Can the Johnson Controls A421ABC-02C be used in commercial applications?

    Answer: Yes, the A421ABC-02C is designed for both residential and commercial applications. Its robust design allows it to function efficiently in environments such as restaurants, warehouses, and industrial plants, where precise temperature control is crucial. For instance, in a commercial kitchen, it can maintain ideal temperatures for food storage, ensuring compliance with health regulations.
  • Question: Is the A421ABC-02C easy to install?

    Answer: Installation of the A421ABC-02C is straightforward for those familiar with electrical systems. It typically involves connecting the control to the power supply and the HVAC or refrigeration equipment. The clear wiring diagrams provided with the product greatly assist in the installation process. This ease of installation makes it a favored choice for DIY enthusiasts and professionals alike, as it allows for quicker setups in various projects.
  • Question: What type of sensors does the A421ABC-02C use?

    Answer: The A421ABC-02C utilizes thermistor-based sensing technology. This allows for accurate temperature readings, enabling precise control of heating or cooling systems. Thermistors are known for their reliability and quick response times, making this control ideal for applications where maintaining specific temperatures is critical, such as in manufacturing or laboratory settings.
  • Question: What are the dimensions of the A421ABC-02C thermostat?

    Answer: The Johnson Controls A421ABC-02C has a compact but robust design. The dimensions are typically suitable for standard mounting boxes, making it adaptable to various installation environments. Its size allows for integration into existing systems without requiring significant modifications, simplifying upgrades for older control systems while providing advanced features.
  • Question: Can this temperature control be used for outdoor applications?

    Answer: The A421ABC-02C is primarily designed for indoor use; however, it can be applied in controlled outdoor environments if appropriate precautions are taken against moisture and extreme weather conditions. This makes it potentially applicable for greenhouses or outdoor refrigeration units where temperature regulation is essential for product preservation and quality.
  • Question: What voltage does the A421ABC-02C operate at?

    Answer: The A421ABC-02C operates typically at 24 volts AC, which is a standard voltage for many control systems. This low voltage requirement enhances safety and allows for easy integration into existing systems without the need for extensive electrical modifications. Its compatibility with common HVAC systems streamlines the installation and maintenance process for users.
  • Question: How does this temperature control improve energy efficiency?

    Answer: The Johnson Controls A421ABC-02C aids in energy efficiency by maintaining precise temperature settings and reducing cycles of on/off operation for heating and cooling systems. By accurately controlling the temperature, it minimizes energy waste, translating to lower energy costs and a reduced carbon footprint. In practical terms, this means that businesses can save on operational costs while ensuring optimal performance of their heating or cooling systems.
  • Question: Where can I buy the Johnson Controls A421ABC-02C in Bahrain?

    Answer: You can purchase the Johnson Controls A421ABC-02C A421 Series Electronic Temperature Control from Ubuy, a reliable online retailer that offers a variety of electronic controls and temperature management solutions. Ubuy provides a user-friendly shopping experience and convenient delivery options tailored for your location in Bahrain.

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Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
  • Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.