Item Type: Speed Governor
The ESD5522E speed governor is an upgraded version of the ESD5111, incorporating enhanced fuel control during startup and a smooth acceleration process. These features effectively reduce black smoke caused by sudden fuel injection during engine startup, thereby extending engine lifespan. This model is widely used in modern generators for its reliability and advanced functionality. (Note: The ESD5520E is specifically designed for Cummins EFC actuators.)
Speed Stability: ± 0.25% or better
Speed Range: 1KHz – 7.5KHz
Thermal Stability: Maximum ± 1%
Idle Adjustment: 160 ± 20Hz to 95% of rated speed
Droop Adjustment:Minimum Position: 15Hz ± 6Hz per ampere load current change
Maximum Position: 400Hz ± 75Hz per ampere load current change

External Speed Adjustment: ± 200Hz (with external 1KΩ resistor)
AUX Input Sensitivity: 148Hz / 1V ± 10Hz
Impedance: 1MΩ
Start Fuel Adjustment: 160 ± 20Hz to 70% of rated speed
Ramp Time Adjustment: 1.5 – 20 seconds
10V Output Current: Maximum 20mA
Operating Temperature Range: -40°C to 85°C
Operating Humidity Range: Up to 95%
Storage Temperature: -55°C to 90°C
Vibration Resistance: 20-100Hz, 500mm/sec
Power Supply Voltage: Compatible with 12V and 24V DC battery systems
Grounding Polarity: Negative
Power Consumption: 50mA
Actuator Continuous Current:Minimum: 2.5A
Maximum: 10A

Speed Sensor Signal: 0.5 – 120 RMS
1 × Speed Controller
1 × User Manual
Performance parameters are measured at a working frequency of 4000Hz.
This product is not an original GAC product, but it serves as a compatible replacement.