a421abc 02c a421 series electronic temperature control 120240 | Shop The World
From USA
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A421ABC-02C A421 Series Electronic Temperature Control 120/240VAC with A99BB-200C Temperature Sensor，SPDT，-40 to 212 Degree F Temperature Range
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Products from the USA may come with an input voltage of 110V–120V, requiring a step-down transformer. Check the device wattage to select the correct power converter.
•The A421ABC-02C electronic temperature controller is compatible with Johnson Controls Penn A421 thermostats and offers a wide control range of –40°F to 212°F (–40°C to 100°C). It includes a standard 6.6-ft A99BB-200C temperature sensor for accurate, reliable sensing in diverse environments.
•The A421ABC-02C temperature controller as a single-stage controller, it features an SPDT relay output (16 A ，120/240 VAC) supporting both heating and cooling modes. Its rugged design supports panel or DIN rail mounting—ideal for flexible, space-constrained, or industrial installations.
•The A421ABC-02C electronic temperature controller features a high-brightness backlit LCD display with adjustable brightness. Combined with a three-key touch panel, the operation is intuitive and simple. It allows for setting limits on user adjustments, facilitating setup and preventing accidental operations.
•The switch status of the output relay is displayed through the LED indicator light, facilitating quick identification of the system's operation status at the site.
•This controller features a variety of advanced settings, including temperature start-stop settings, adjustable delay for preventing short cycles, temperature hysteresis, and sensor offset compensation. These functions not only enhance the accuracy of temperature control but also effectively protect the core components such as the compressor, preventing equipment damage caused by frequent start-stop operations and prolonging the service life of the system.
From USA
