| 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 @77°F (25 °C) - (Inductive Load) | Min.2.5 Amps; Max. 10Amps continuous | |
| Speed Sensor Signal | 0.5-120 Volts RMS | |
| Speed switch Relay contacts(N.O.and N.C) | 10 Amps ( Rated power is biger than ESD5500) | |
| 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 | |
| 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 | |
| Speed witch adjustment range | 1000-10000HZ | |
| Environmental | Ambient Operating Temperature Range | -40 to +180°F(-40°+85 °C) | 
| Relative Humidity | Up to 95% | |
| All Surface Finishes | Fungus Proof and Corrosion Resitant | |
| Reliability | Vibration | 1G @ 20 to 100 Hz. | 
| Testing | 100% Functionally Tested | |
| physical | Dimensions | See outline (FIGURE 1) | 
| Weigh1 | 1.8 lbs.(820 grams) | |
| Mounting | Any position, Vertical Preferred |