TWENTY MINUTE TUESDAY WEBINAR SERIES How to Select AC SPD for UL508A Control Panels? 3:05pm EST | 2:05pm CST | 1:05pm MST | 12:05pm PST 1/25/2022How to Select AC SPD for UL508A Control Panels? Register Here! TopicsLearn about, - What are important terms? - Function of SPD - SPD sections in UL508A Standard - Typical Control Panel Layout - SPD Strategy– The Box Concept - UL 1449 Certifications - UL Ratings - Trivia Contest