Product Details
The A421 series controls are single-stage, low-voltage electronic temperature controls featuring a single-pole, double-throw (SPDT) output relay, designed to manage a wide variety of single-stage refrigeration or HVAC equipment within an ambient temperature range of -40 to 212°F. Model A421GBF-02C includes a standard Type 1 (NEMA) IP20 high-impact plastic enclosure suitable for surface or DIN rail mounting, and is rated for 24 VAC Class 2, safety extra low voltage. The kit encompasses an A99BB-200C temperature sensor with a 2 in. standard probe and a 6.6 ft. PVC cable. Key features include a control front panel LCD, a basic and advanced programming menu, on/off temperature adjustment, switch-activated temperature setback, an adjustable anti-short cycle delay, an adjustable sensor offset, an optional restricted adjustment mode, and a sensor failure mode. The product adheres to relevant certifications and compliance standards ensuring reliability and safety in operation.
