Features 1、Using flame‑retardant metal casing, high temperature flame‑retardant, no deformation, no rust, safe and durable. 2、The input and output are connected with large current terminals, which is safer with safety cover. 3、The voltage can be adjusted freely, stepless speed regulation, boost from 0V to , or from to 0V, simple operation. 4、Installation hole design, flat, easy to hang, and humanized design is more convenient. 5、With heat dissipation hole design, the machine has a slight heat when working, and the effective heat dissipation of the heat dissipation hole makes the machine performance more stable. Specification Item Type: Motor Speed Governor Product Model: DRDY4000 Input Frequency: 47Hz-63Hz Output Frequency: 47Hz-63Hz Rated Output Current: 25A Rated Output Power: Motor within 1000W, heating wire within 2000W, electric furnace Size: Approx. 75mm / 3in 60mm / 2.4in 130mm / 5.1in 95mm / 3.7in Mounting Holes: Approx. 85 x 95mm / 3.3 x 3.7in Diameter: Approx. 4mm / 0.2in Package List 1 x Motor Speed Governor