400kW / 500kVA Open Type Diesel Generator
Exposed Engine Architecture | Engine: WP12ZLD | SKU: YMDL-400GF-OPEN
- Half-Copper Brushed Alternator
- Industrial Diagnostics Controller
- Heavy-duty Steel Base Frame, IP23
- Base Fuel Tank, ≥8h Runtime at Full Load
- Full Auto System (ATS) — Standard
Build Your Own Configuration
Custom builds are quoted individually via WhatsApp — pricing shown below for full transparency.
Engineering Data & Specifications
| Metric | Performance Values |
|---|---|
| System SKU | YMDL-400GF-OPEN |
| Rated Power (Standby) | 400 kW / 500 kVA |
| Rated Power (Prime) | 360 kW / 450 kVA |
| Rated Voltage | 400V / 230V (3-Phase 4-Wire) |
| Rated Frequency | 50 Hz |
| Power Factor | 0.8 (Lagging) |
| Engine Model | WP12ZLD (Weifang) |
| Engine Type | 4-Stroke, Water-Cooled, In-line 4-Cylinder |
| Displacement | 4.15 L |
| Rated Engine Speed | 1500 RPM |
| Alternator | Half-Copper Brushed (Default) |
| Controller | Industrial Diagnostics System (Default) |
| Frame Construction | None (Heavy-duty steel base frame) |
| IP Rating | IP23 (Requires indoor/sheltered installation) |
| Fuel Tank Capacity | Base tank for ≥ 8 hours at full load |
| Dry Weight | 2300 kg |
| Dimensions (L × W × H) | 3200 × 1150 × 1600 mm |
| Starting System | Electric Start (12V / 24V) |
| Cooling System | Water-Cooled with Radiator |
| Certification | Conforms to ISO 8528 Design Standard / CE |
400kW Diesel Generator Armor
Safe 400kW Diesel Generator operations.
Why it matters: Heavy-duty open generators often run in hot, dusty rooms. A sudden drop in oil or spike in temperature goes unnoticed until it's too late. This module is your automated mechanic.
Operating an open base-frame generator requires reliable fail-safes. Whether a stray piece of debris blocks the radiator or a sudden electrical fault occurs downstream on your site, the control module instantly isolates the problem, stopping the engine dead in tracks to preserve its mechanical integrity.
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Lube SafetyGuards 400kW Diesel Generator bearings.
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Thermal ShieldDefends 400kW Diesel Generator block.
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Speed LimiterStops 400kW Diesel Generator race.
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Volt SentinelSecures 400kW Diesel Generator output.
Core Advantages of the Open-Frame Build
Heavy-Duty 400kW Skid Frame
Constructed on a robust, vibration-isolating steel base. Engineered to handle continuous 400kW loads while simplifying forklift handling and concrete pad installation.
Maximum Cooling Efficiency
Without a restrictive acoustic canopy, the oversized radiator and cooling fan capture maximum ambient airflow, drastically reducing thermal stress in high-temperature plant rooms.
Unrestricted Service Access
Mechanics have unimpeded 360-degree access to the alternator and engine block. Oil changes, filter replacements, and routine valve adjustments are completed significantly faster.
Superior kW-to-Cost Ratio
By eliminating the premium cost of a weather-proof enclosure, your capital goes directly into raw power generation. It’s the ultimate cost-effective solution for dedicated indoor generator facilities.
Seamless Plant Integration
The exposed architecture allows for straightforward connections to external exhaust piping, automated transfer switches (ATS), and high-capacity bulk fuel tanks for extended manufacturing runs.
WP12ZLD Core Reliability
Driven by the rugged Weifang WP12ZLD engine block. Renowned for its exceptional load-acceptance, massive torque output, and the global availability of cost-effective replacement parts.
Physical Dimensions & Weight
Frequently Asked Questions
Is 400kW enough power for my facility?
A typical 400kW generator can power lighting, refrigeration, water pumps, and several air conditioning units simultaneously. For a standard facility under 300m², 400kW is usually sufficient for essential loads. We recommend listing your equipment wattage for a precise sizing check.
How much fuel does the 400kW generator consume per hour?
At full load, the WP12ZLD engine consumes approximately 7–8 litres of diesel per hour. At 75% load (typical operating condition), fuel consumption drops to around 5.5–6.5 litres/hour. The built-in base tank supports ≥8 hours of runtime at full load.
Can I install this open type unit outdoors permanently?
No. Open type generators must be installed indoors in a dedicated, well-ventilated generator room or under a protective shelter. They are not waterproof and should not be exposed to direct rain or extreme weather without a canopy.
What does the "Four Protection System" controller do?
The standard controller monitors four critical parameters in real-time: oil pressure, coolant temperature, engine over-speed, and over-current. If any parameter exceeds the safe threshold, the controller will automatically shut down the engine to prevent damage. It can be upgraded to a Full Auto (ATS) system for unmanned, automatic operation.
What is the difference between the brushed and brushless alternator options?
The default half-copper brushed alternator requires periodic brush replacement but is cost-effective for standard applications. The brushless variants (half-copper or full-copper) eliminate brush wear, provide cleaner power output, and are more suitable for sensitive electronics or installations with minimal maintenance access.
Do you offer wholesale or bulk order pricing?
Yes. As a factory-direct supplier, we offer competitive wholesale pricing for bulk orders. The listed price of $8,547 reflects the default single-unit FOB China price. Please contact us with your quantity and specifications for a tailored quotation.
Ready to Order or Need a Custom Quote?
Contact our team for bulk pricing, upgrade configurations, shipping estimates, and OEM options.