Overview
The 3408324 is a normally closed (NC), low-flow electric actuator designed for Cummins EFC (Electronic Fuel Control) diesel generator engines below 300KW. It is installed inside the PT pump and controls fuel metering under command from the electronic speed governor.
Key Features
- Normally Closed Fail-Safe — Low-flow (5 GPH) EFC actuator that defaults to minimum fuel position on power loss for automatic engine shutdown protection
- Cummins EFC System Compatible — Designed for Cummins electronic fuel control governors on 6BT, 6CT, NTA855, and KTA19 series engines
- 24V DC Operation — Rated for continuous duty in 24V generator electrical systems with <1A holding current for energy-efficient operation
- 0–5 GPH Flow Range — Precision fuel metering for small to medium displacement diesel engines up to 400kW
- Threaded Inlet/Outlet — Standard NPT fuel line connections for straightforward plumbing integration
- OEM Direct Replacement — Drop-in replacement for Cummins 3408324 EFC normally-closed actuator unit
Technical Specifications
| Parameter | Value |
|---|---|
| ———– | ——- |
| Model | 3408324 |
| Type | Electric Linear Actuator (EFC/PT Pump) |
| Operation Type | Normally Closed (NC) |
| Flow Rate | Low-flow (for <300KW engines) |
| Rated Voltage | 24V DC |
| Coil Resistance | 7.2 ± 0.4 Ω @ 22°C |
| Inductance | 120 ± 20 mH |
| No-Load Current | 0.9-1.1A |
| Full-Load Current | 1.1-1.5A |
| No-Load Voltage | 3-9V |
| Full-Load Voltage | 10-12V |
| Response Time | 15-20 ms |
| Operating Temp | 15°C to 125°C |
| Coil Resistance @ 38°C | 7.7 Ω |
| Coil Resistance @ 94°C | 9.6 Ω |
| Coil Resistance @ 125°C | 10.6 Ω |
| Mounting | PT pump internal (O-ring sealed) |
Compatibility
Compatible with Cummins EFC electronic speed governors. Works with Cummins engines under 300KW equipped with PT fuel pump.
Why Choose ZenixPower
- Cummins OEM Spec — Manufactured to original Cummins specifications
- NC Safety Design — Spring-return fuel-cut prevents engine runaway
- Precise Current Parameters — 0.9-1.1A no-load / 1.1-1.5A full-load
- Temperature Stable — Verified coil resistance across full operating range
- 100% Tested — Stroke, force, and electrical parameters verified before shipment
Competitors GAC ADC120 — external actuator | GAC ADC175 — pump-mounted actuator | Cummins 3408326 — high-flow EFC
Specification Comparison
| Parameter | 3408324 | GAC ADC120 | GAC ADC175 | Cummins 3408326 |
|---|---|---|---|---|
| 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 |
