Overview
The ESD5330 is a GAC ESD5300-series speed control unit with built-in crank termination, starting-fuel control, and overspeed protection. It is designed for large-bore engines and delivers up to 15 A peak actuator current.
Key Features
- 10A Continuous Output — High-current actuator drive for GAC ADC, Barber-Colman, and Woodward proportional actuators up to 10 lb-ft torque
- Overspeed Protection — Adjustable 1500Hz–7.5kHz threshold with 1.5-second delay and automatic fuel cutoff relay output
- Isochronous Speed Control — ±0.25% steady-state stability maintains constant engine RPM from no-load to full-load for precise generator frequency
- Magnetic Pickup Input — 600–9500Hz differential MPU sensing with noise rejection for reliable tachometer signal in electrically noisy generator enclosures
- Soft-Start Ramp — Programmable speed ramp eliminates startup smoke, reduces actuator current surge, and provides smooth engine acceleration
- 12/24V Dual Voltage — Auto-sensing 8–32V DC supply with reverse polarity protection for universal generator application
Technical Specifications
| Parameter | Value |
|---|---|
| ———– | ——- |
| Model | ESD5330 |
| Brand | GAC |
| Type | Electronic Closed-Loop Speed Governor (ESD5300 Series) |
| Control Mode | Isochronous / Droop adjustable (0–5%) |
| Speed Stability | ±0.25% |
| Speed Signal Range | 1.0–50 V AC |
| Max Actuator Peak Current | 15 A |
| Overspeed Set Point | 2330–8500 Hz |
| Crank Termination | 200–2050 Hz |
| Power Consumption | 100 mA (no actuator current) |
| Supply Voltage | 24 V DC (max 32 V DC, reverse-polarity protected) |
| Application | GAC ESD5330 Speed Control Unit |
Compatibility
Compatible with all GAC actuators including ACB2001. Works with Cummins KTA38, KTA50, QSK60 series large engines.
Why Choose ZenixPower
- 15 A Peak Actuator Drive — For large-bore engine actuators
- Starting Fuel Control — Reduces emissions on crank
- Overspeed Protection — Configurable trip threshold
- Reverse Polarity Protected — Survives accidental battery reversal
Competitors GAC ESD5330 — large engine specialist | GAC S6700E — advanced paralleling | KUTAI EG3000 — universal
Specification Comparison
| Parameter | ESD5330 | Cummins 3062322 | GAC S6700E | KUTAI EG3000 |
|---|---|---|---|---|
| Brand | GAC (USA) | Cummins (USA) | GAC (USA) | KUTAI (Taiwan) |
| Function | Electronic Closed-Loop Speed Governor (ESD5300 Series) | Large Engine Electronic | Advanced + Paralleling | Universal Closed-Loop |
| DC Supply | — | 24V DC | 24V DC | 12/24V DC |
| Actuator Output | — | 10A continuous | 2.5–10A | 0.5–15A |
| Speed Stability | ±0.25% | ±0.25% | ±0.25% | ±0.5% |
| Overspeed Protection | Built-in | Built-in (1.5s) | Built-in (1.5s) | Optional |
| Paralleling | No | Optional | Built-in load sharing | No |
| Self-Diagnostics | No | No | Built-in | No |
| Price | Contact Us | $350–550 | $500–800 | $180–300 |
