Product Details
The A421 series controls are single-stage, line-voltage electronic temperature controls featuring a single-pole, double-throw (SPDT) output relay, designed to manage a variety of single-stage refrigeration or HVAC equipment within an ambient temperature range of -40 to 212°F. The Model A421ABC-02C is equipped with a standard type 1 (NEMA) IP20 high-impact plastic enclosure that can be mounted on surfaces or DIN rails and is rated for either 120 or 240 VAC. The kit includes an A99BB-200C PTC temperature sensor with a 2 in. standard probe and a 6.6 ft. PVC cable. Key features of this model include a control front panel LCD, basic and advanced programming menu, on/off temperature adjustment, switch-activated temperature setback, adjustable anti-short cycle delay, adjustable sensor offset, optional restricted adjustment mode, and sensor failure mode, ensuring comprehensive functionality and reliability in temperature management.








