Overview
The 3408326 is a normally closed (NC), high-flow electric actuator for Cummins EFC diesel generator engines rated 400-800KW and above. Installed inside the PT pump, it provides precise fuel metering control under command from the electronic speed governor.
Key Features
- Normally Closed (NC) — Fails to fuel-cut on power loss
- High-Flow Design — For engines 400-800KW and above
- PT Pump Internal Mount
- Fast Response — 15-20ms
- 24V DC Rated
Technical Specifications
| Parameter | Value |
|---|---|
| ———– | ——- |
| Model | 3408326 |
| Type | Electric Linear Actuator (EFC/PT Pump) |
| Operation Type | Normally Closed (NC) |
| Flow Rate | High-flow (for 400-800KW+ engines) |
| Rated Voltage | 24V DC |
| Coil Resistance | 7.2 ± 0.4 Ω @ 22°C |
| Inductance | 120 ± 20 mH |
| Response Time | 15-20 ms |
| Operating Temp | 15°C to 125°C |
| Mounting | PT pump internal (O-ring sealed) |
Compatibility
Compatible with Cummins EFC electronic speed governors. Suitable for Cummins KTA38, KTA50, QSK60 and other high-power engines 400KW and above.
Why Choose ZenixPower
- High-Flow for Big Engines — Designed for 400-800KW+ Cummins KTA series
- NC Safety — Spring-return fuel-cut on power loss
- Cummins OEM Spec — Exact replacement for 3408326
- 100% Tested — Every unit verified before shipment
Competitors GAC ADC120 — external actuator | GAC ADC175 — pump-mounted actuator | Cummins 3408326 — high-flow EFC
Specification Comparison
| Parameter | 3408326 | GAC ADC120 | GAC ADC175 | GAC ADC225 |
|---|---|---|---|---|
| Brand | Cummins (USA) | GAC (USA) | GAC (USA) | Cummins (USA) |
| Type | Electric Linear Actuator (EFC/PT Pump) | External Electric | Pump-Mounted | EFC Electric |
| Torque | — | 1.0 lb-ft | 6.2 lb-ft | High-flow |
| Stroke | — | 25° rotary | 0.80 in linear | Linear |
| DC Supply | — | 12/24V DC | 24V DC | 24V DC |
| Valve Type | — | NO/NC selectable | NO | NC (Normally Closed) |
| Power Range | — | 100–500 kW | 100–500 kW | 400–800 kW |
| Price | Contact Us | $180–280 | $250–400 | $300–500 |
