Silent Type
CN04GF 3 kW Single-Cylinder Silent Diesel Generator Set
3 kW ≈ 3.8 kVA 110V
Model CN04GF · 178F engine · 70-75 dB(A) · 14 h continuous running
Factory direct price · reply within 24 hours
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“How many kVA do I need?” is the first question every buyer asks — and the one most often answered wrong. Buy too small and your fridge or pump will not start. Buy too big and you waste fuel and money every day. Here is a simple 3-step method used by our engineers.
Write down every appliance that must run during an outage, with its power rating (usually printed on the label):
| Appliance | Running watts | Starting note |
|---|---|---|
| Light bulbs (5-10 points) | 50-200 W | — |
| Standing / ceiling fans | 60-150 W | — |
| LED TV + decoder | 100-200 W | — |
| Refrigerator | 150-300 W | Compressor starts ×3 |
| Deep freezer | 200-400 W | Compressor starts ×3 |
| Water pump (0.5-1 HP) | 350-750 W | Motor starts ×3 |
| Air conditioner 1 HP | 750-1000 W | Compressor starts ×3 |
| Small shop fridges + lighting | 500-1500 W | — |
Motors and compressors draw 2 to 3 times their running power at the moment they start. So after adding up the running watts, multiply the total of motor-driven appliances by 3, or simply add 30% to your grand total as a safety margin.
Example: lights 200 W + fans 150 W + TV 150 W + fridge 300 W + pump 500 W = 1,300 W running. Add 30% → about 1.7 kW of real demand, and the pump starting surge is covered.
Generators are rated in kVA (apparent power). The conversion uses power factor 0.8:
kVA = kW ÷ 0.8
So 1.7 kW ≈ 2.1 kVA minimum. In practice you round up to the nearest standard size and keep the unit running at 70-80% load, which is where diesel engines are most efficient and live longest.
| Your load | Recommended size | CNMC model |
|---|---|---|
| Lights, fans, TV, small fridge | 3.8 kVA (3 kW) | CN04GF |
| + water pump + 1 HP air conditioner | 6.2 kVA (5 kW) | CN06GF |
| Shop with 2 fridges + 2 ACs | 8.8 kVA (7 kW) | CN08GF |
| Large home or small office, full backup | 11.3 kVA (9 kW) | CN10GF |
| Restaurant / clinic / small hotel | 13.8 kVA (10.5-11 kW) | CN11GF |
| Workshop or whole building | 22.5 kVA (18 kW) | CN20GF |
Send us your appliance list on WhatsApp — a photo of the nameplates is enough — and our engineers will calculate the right size and quote you within 24 hours. No obligation.
Silent Type
Model CN04GF · 178F engine · 70-75 dB(A) · 14 h continuous running
Silent Type
Model CN06GF · 188F engine · 70-75 dB(A) · 14 h continuous running
Silent Type
Model CN07GF · 190F engine · 70-75 dB(A) · 13 h continuous running
Send us your equipment list and site conditions, we will recommend a model.