Features: Adjustable Voltage Regulator Module: MCTFW6309F Less than 1% voltage regulation accuracy; 220/400VAC input Strong and durable; With low frequency protection function Slow start;Built-in harmonic suppressor Built-in 8A fuse Technical Parameters Sampling input 220/400VAC (short-circuit switch) Voltage input 180-276VAC Excitation output voltage Maximum 90VDC@240v Continuous current 5A Non-continuous 8A10 seconds Resistor minimum 15 ohms Voltage regulation accuracy is less than +/-1% (frequency changes within 4%) The voltage establishment residual magnetization voltage must be greater than 5V25 Hz External voltage adjustment maximum +/-10%@1KΩ1W potentiometer Voltage build-up time 4 seconds Static power consumption maximum 8 W EMI built-in harmonic suppressor Low frequency protection 50Hz knee value is 46 Hz 60Hz knee value is 56 Hz Overexcitation protection factory default value 75VDC Simulation voltage input (A1, A2) Input impedance greater than 2 KΩ Maximum input +/- 5 Vdc or + 0 -10 Vdc Sensitivity 5% per 1 Vdc (TRIM adjustable)nvironment Vibration 3G@100~2K Hz Relative Humidity Less than 95% Operating Temperature -40~65℃ Storage Temperature -40~85℃ Tips: The product may be updated constantly, The Actual Product May Have Slight Differences Or Color Differences the color and appearance may be changed, please don't mind. And take a consideration before place the order if you have request for color or appearance. Material: Plastic colour: As shown Package Contents: 1 x Adjustable Voltage Regulator Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.