Tjernlund UC1Universal Control for interlocking Venters, Inducers & In-Forcers with 24/115 VAC controlled heaters Product Specifications BRANDTjernlund LENGTH INCHES8 WIDTH INCHES5-1/2 HEIGHT INCHES3 WEIGHT LBS.3.5 CONSTRUCTIONAluminized Steel VOLTAGE120 HERTZ (HZ)60 CERTIFICATIONScETLus Listed MANUFACTURER'S PART NUMBERUC1