Us52 Speed Governor Efficient High Quality Mini Size Speed Control Easy To Carry Motor Accessories Monitor Advanced Durable Description: Name: Governor Model: US-52 Common Speed Range: 90-1400r/min Optional Power: 6-400W And 12 Specifications Hole Installation Size: Width 50mm, Height 82mm, Screw Installation Distance 90mm Packing Size: Length 118mm, Width 106mm, Height 84mm Product Gross Weight: 0.27kg   Features: 1. Desktop Capacity: This Motor Speed Controller Is Suitable For AC220 V50/60Hz Motor. 2. The Speed Adopts 90-1400r/min 50Hz,90-1700r/min 60Hz Packaging, Printing, Food, Desk, Desk, Table, Speed Control. 3. Small, Precise, Wide Speed Control, Surround And Suspension. 4. Power: AC220V50 Hz/60Hz Rated Power: 400W Temperature:-10 ~ 50 Degrees Relative Humidity 90% 5. Speed: 90-1400r/min 50Hz,90-1700r/min 60Hz Distribution: Black Dots And Black Contours Are The Main Frequency, Red And White Are The Capacitor Capacitor Capacitance Lines Package Included: 1 *(1 Governor)