Yanmar YEG230DTLC/DTLS – specifications
Series: YEG Series
Build year not documented · Data origin: Manufacturer information · sources
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The Yanmar YEG230DTLC/DTLS is the three-phase version among the YEG sets listed here. A water-cooled diesel engine drives the generator at 50 Hz with 1500 and at 60 Hz with 1800 revolutions per minute.
Prime power is 17.0 at 50 Hz and 20.6 at 60 Hz, and standby power 18.7 and 22.7. The voltage is given as 380 V at 50 Hz and 380/220 V at 60 Hz; the number of phases is three. Unlike the single-phase DSL types, this set therefore delivers three-phase current, of the kind that electric motors, compressors and building-site distribution boards need.
The ending DTL marks the three-phase version in the series. At 60 Hz the register additionally gives the voltage 380/220, at 50 Hz only 380; three-phase operation is therefore provided for both mains frequencies. Anyone supplying a plain household connection needs the single-phase counterpart, anyone running motors the three-phase version.
Yanmar YEG – generator-set engines: the collective page of the generator engine range with 22 versions, model designations from YEG140 to YEG750
Yanmar of Osaka, founded in 1912, is one of the long-established Japanese diesel-engine makers and, alongside its farm-machinery and construction-equipment division, also runs its own range of generator-set engines. This page gathers the YEG-range engines listed in the register as a separate generator-drive engine line, from YEG140 to YEG750.
Read on 3 more paragraphs
The register lists here 22 versions of the YEG range. The model designations run from YEG140 through the intermediate steps YEG150, YEG170, YEG200, YEG230, YEG300, YEG400 and YEG450 to the largest versions YEG500, YEG650 and YEG750, each with variants of the suffixes DSHS, DTHS, DSLC, DTLC, DSHC and other combinations. Apparent power ranges from 8.8 to 74.0 kVA (prime power 8.0 to 67.2 kW) at mains voltages of 220 to 415 V, single- or three-phase, and mains frequencies of 50 or 60 Hz; the engines are water-cooled with 3 or 4 cylinders, and set dry weight lies between 305 and 1,230 kg.
Engines of this range drive diesel generator sets used for construction-site power, standby installations and decentralised energy supply; the wide YEG model range lets Yanmar cover both smaller and large sets, competing with other Japanese and European engine makers in the genset market.
When buying a used generator set with a YEG engine, operating hours and the previous load profile (continuous duty or standby use only) count, along with the condition of the injection and cooling system, the tightness of crankshaft seals and valve cover, and the function of the generator side with its control electronics; spares and service run through the Yanmar dealer network.
Sources: SpecCodex register, model data: Yanmar YEG (Industriemotoren, Stromerzeuger-Baureihe), Yanmar (manufacturer)
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Cooling | water-cooledcorrect |
Other data
| Apparent power | 18.7 (Stand-by, 50Hz) / 22.7 (Stand-by, 60Hz)correct |
|---|---|
| Frequency | 50/60correct |
| Phases | threecorrect |
| Prime power | 17.0 (50Hz) / 20.6 (60Hz)correct |
| Speed | 1500 (50Hz) / 1800 (60Hz)correct |
| Voltage | 380 (50Hz) / 380/220 (60Hz)correct |
What to check before buying
- Match the data plate against the order: frame size, mounting and rating have to agree.
- For used units, ask about winding condition and bearing play.
- Ask about parts availability for this series — the running costs hang on it.
A general list for this type of machine — no substitute for an inspection or an appraiser.
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This page carries 8 individual figures for this model. They come from 1 recorded source; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
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Other models in this series
Sources: Manufacturer documentation, yanmar.com (retrieved August 2026) · Data sources and cross-checks
Diesel engine in 3D section
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