ESD5500E diesel generator speed control unit normal quality same as the market cheaper one good quality my shop often sell this heavy the quality is better than not heavy one if you need not heavy one pls contact with me esd5500e diesel generator speed governor controller ALL PARTS MADE IN Description----The ESD5500E/5520ESeries speed control unit is an all electronic device designed to control engine speed with fast and precise response transient load changes.*ESD5520E is designed for CUMMINS EFC series.*Isochronous Operation/Steady Stability---- +/-0.25% or better*Supply----12 or 24 VDC Battery Systems(transient&reverse voltage protected)*Power Consumption----50 ma continuous plus acutator current*Maximum Actuator Current at 25celsius (77celsius F)----10 Amps continuous Input Supply 12 or 24 VDC Battery System (Transient and Reverse Voltage) Polarity Negative Ground (Case Isolated) Power Consumption 50 ma continuous plus actuator current Actuator Current Range @ 25 Deg. C - (Inductive Load) Min.2.5 Amps; Max. 10Amps continuous Speed Sensor Signal 0.5-120 Volts RMS Performance Isochronous Operation/Steady State Stability 0.25% or better Speed Range/Governor 1K to 7.5K Hz continuous Speed Drift with Temperature 1 Max Idle Adjust CW 60% of set speed Idle Adjust CCW Less than 1200 Hz. Droop Range 1-5% regulation Droop Adj. Max. (K-L Jumpered) 400 Hz., 75Hz. Per 1.0A change Droop Adj. Min. (K-L Jumpered) 15Hz., 6Hz. Per 1.0A change Speed Trim Range 200 Hz Remote Variable Speed Range 500 - 7.5 Hz. Or any part there of Terminal Sensitivity J 100 Hz., 15Hz / Volt @ 5.0 K Impedance Terminal Sensitivity L 735 Hz., 60 Hz / Volt @ 65 K Impedance Terminal Sensitivity N 148 Hz., 10 Hz / Volt @ 1 Meg. Impedance Terminal Sensitivity P 10 VDC Supply @ 20 ma Max Environmental Ambient Operating Temperature Range -40 to +85 Deg. C Relative Humidity Up to 95% All Surface Finishes Fungus Proof and Corrosion Resitant Reliability Vibration 1G at 20 to 100 Hz. Testing 100% Functionally Tested Physical Dimensions See outline (FIGURE 1) Weigh1 1.2 lbs.(545 grams) Mounting Any position, Vertical Preferred