KDE21SS3 19kVA
Economical Stage V Compliance, Compact Build
The KDE21SS3 is a super-silent diesel generator fully compliant with EU Stage V emissions standards. Optimized for reliability and minimal environmental impact.
- ⚡ Prime Power: 15.2 kW / 19 kVA
- 🔇 Noise Level: 65–67 dB(A) @ 7m
- 🌱 Compliance: Full EU Stage V (2016/1628)
- ⚙️ Engine: Yangdong YND490DE (Water-Cooled)
- ⚙️Alternator: 2/3 Winding Pitch
- ⛽ Fuel Efficiency: ≤ 245 g/kW·h
Ideal For:
Commercial and residential power supply • Construction sites • Events • Municipal Projects
✓ 1 Year Global Warranty ✓ Seamless ATS Support
Specs
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Electrical Data
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| Rated Frequency | Hz | 50 |
| Phase | 3 Phase | |
| Rated Voltage | V | 230/400 |
| Prime Rated Power (PRP) | kVA / kW | 19/15.2 |
| Limited-Time Power (LTP) | kVA / kW | 20.9/16.7 |
| Power Factor cos φ | 0.8 | |
| Rated Current | Amp | 27.4 |
| Total Harmonic Distortion (THD) | No Load < 1.5%, Non-Distoring Linear Load < 5.0% | |
| Battery | 45Ah maintenance-free battery with isolator switch | |
| Air Circuit Breaker | 4P 32A, with 30mA RCD | |
| AC output | 1×IP44 CEE 230V 2P+PE 16A 1×IP44 CEE 400V 3P+N+PE 32A AC Connection Terminals: R+S+T+N |
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Control
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| Control Panel Model-standard | SmartGen 4020NC AMF | |
| Communication Port-standard | RS-485, USB Type-B, ATS communication port | |
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Engine
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| Model | Yangdong YND490DE | |
| Rated Rotation Speed | rpm | 1500 |
| Continued Power | kW | 18.9 |
| Number and Arrangement of Cylinders | I4 | |
| Bore×Stoke | mm | 90×95 |
| Displacement | Liter | 2.417 |
| Aspiration | Natural | |
| Injection | Direct Injection with In-line Pump, Mechanical Governor* | |
| Cooling | Forced Water Cooling | |
| Starting | Electric, 12V | |
| Firing Order | 1-3-4-2 | |
| Compression Ratio | (18±0.5):1 | |
| Valves per Cylinder | 2V per Cylinder | |
| Max. Fuel Consumption at Full Load | g/kW.h | ≤245 |
| Lub. Oil Capacity | Liter | 11 |
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Alternator
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| Model | KWISE S184G16C6 | |
| Rated Power | kVA | 20 |
| Insulation Class | H, Temp Rise 125 °C (Ambient 40 °C) | |
| Degree of Protection | IP23 | |
| Excitation, AVR model | Brushless, Self-Excited, SX460 | |
| Winding Pitch, Winding Connection | 2/3, Star(Y) | |
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Fuel Tank
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| Fuel Tank Capacity-standard | Liter | 30 |
| Fuel Autonomy at Full Load-standard | Hour | 8 |
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Noise Level
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| Sound Pressure Level (LpA) (7m) | dB(A) | 65~67 |
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Dimensions and Weight
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| Dimensions L × W × H | mm | 1750×720×960 |
| Package Dimensions L × W × H | mm | 1770×740×980 |
| Dry Weight | kg | 602 |
Features
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Basic Performance
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| 50ºC radiator |
| Digital controller |
| Mechanical Governor |
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Reliable Engine, Excellent Fuel Efficiency
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| Dual-stage air filter* |
| Less downtime |
| Batteries Installed |
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Built Tough, Easy to Handle
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| Compact & Easy to Move |
| Safe Lifting and Handling |
| C3M Anticorrosion Protection Canopy |
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Noise Protection
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| High-Density Soundproofing |
| Residential Silencer |
| Optimized Air Duct |
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Long Runtimes
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| 24 Hrs Oil Tank* |
| Flexible 3-way fuel valve* |
| 110% Spillage Catchment* |
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Smart & Easy Control
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| Remote links |
| EPM system |
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Safety & Electrical Protection
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| 4-Pole Circuit Breaker |
| Emergency Stop Button |
| Battery Isolator |
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Connectivity & Ease of Use
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| Terminal Block |
| Dedicated socket compartment |
| Plug & Play Ready |
Frequently Asked Questions
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What emissions standard does the KDE21SS3 meet, and why is Stage V important?
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| It fully complies with EU Stage V (Regulation 2016/1628), the strictest emissions rules for non-road diesel engines in Europe. This dramatically reduces NOx and particulate matter, enabling legal operation in regulated urban zones and across the EU without restrictions. |
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How quiet is the KDE21SS3 in real-world use?
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| Sound pressure level is 65–67 dB(A) at 7 meters – similar to normal conversation or a quiet office. High-density canopy, optimized air ducts, and premium residential-grade muffler make it suitable for hospitals, schools, residential areas, events, and other noise-sensitive locations. |
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What is the actual fuel consumption and runtime?
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| Fuel consumption is ≤ 245 g/kW·h (approximately 4.3 L/hour at full prime load of 15.2 kW; lower at partial loads). The standard 30L tank provides around 8 hours of autonomy at full load – perfect for overnight backup, construction sites, or extended rental use. Optional larger tanks extend runtime further. |
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Can the KDE21SS3 be used with an ATS for automatic standby power?
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| Yes – it integrates perfectly with an Automatic Transfer Switch (ATS). The built-in SmartGen 4020NC AMF controller supports auto start/stop on mains failure and seamless power transfer for offices, shops, small data centres, or critical loads. RS-485/USB ports enable remote monitoring and ATS communication. |
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What maintenance is required for the Yangdong engine?
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Basic schedule:
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