20kw diesel generator specification check

How we review a 20kw diesel generator offer

Input

You provide the requested output, duty class, voltage and phase, and any drawing or model number already in play. A 20 kW label is incomplete until standby, prime or continuous is named. Single-phase 120/240 V and three-phase 277/480 V are different machines even when both are marketed near 20 kW.

Review

We line the offer against continuous and surge figures, frequency in Hz, enclosure, noise limit with measurement distance, fuel tank or runtime at a stated load, and listing files such as UL or CSA named to the exact model. Company ISO certificates and sister-model brochures are not substitutes. NEMA type and IP code are recorded separately; they are not translated as equivalents.

Output

You receive a written gap list: what matches, what is missing, and what must be re-checked if the supplier proposes a different 20kw diesel generator model. Insulation class, alternator enclosure and controller voltage stay on that list. We do not issue a compatibility certificate for a whole product family.

If the plant changes engine, alternator or enclosure, the listing and the noise figure must be collected again. Sound data without distance is not comparable. Autonomy without a load point is not comparable. Read the nameplate note, scan option forms, or send the files you already have.

kW versus kVA still applies at this size. A 20 kW / 25 kVA three-phase figure is not a 20 kW single-phase figure. HP on a starter is ignored as output. We will not publish a market-low percentage against these checks.