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Cummins KTA38-G1B

K38 Series

In Production

The Cummins KTA38-G1B is a 38-litre V12 diesel engine for generator sets, rated at 788 kVA / 630 kWe standby power at 1,500 RPM (50 Hz). It is a liquid-cooled engine built in China.

Overhaul & repair parts
Supporting documents
2 documents · 1 datasheet
Last updated
2026-05-29
Package route
diesel generator sets
Standby Power · 50 Hz
788 kVA
Electrical Output
630 kWe
Cylinders
V12
Displacement
38 L
Rated Speed
1,500 / 1,800 RPM

Power Ratings

kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf

50 Hz1500 RPM

kWmkWekVA
Prime Power633.3570712.5
Standby Power700630787.5

60 Hz1800 RPM

kWmkWekVA
Prime Power777.8700875
Standby Power855.6770962.5

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Cummins KTA38-G1B 38L V12 diesel generator engine — 788 kVA standby specifications

Cummins KTA38-G1B generator set context

The Cummins KTA38-G1B is listed here as a diesel generator-drive engine for 50 Hz and 60 Hz generator sets, with a headline 788 kVA / 630 kWe / standby rating. Use this page to compare the published engine output, electrical kWe/kVA ratings, emissions level, datasheet availability, and neighboring models before specifying an alternator, controller, enclosure, voltage, and compliance package.

Also searched as

kta38g1bKTA38 G1BCummins KTA38-G1BK38 Series KTA38-G1B

Technical Specifications

BrandCummins
ModelKTA38-G1B
SeriesK38 Series
ConfigurationV12
Cylinders12
Displacement38 L
Fuel TypeDiesel
Ignition TypeCompression Ignition
Cooling MethodLiquid-Cooled
Emissions StandardUnregulated
Country of OriginChina

Frequently asked questions

What is the power output of the Cummins KTA38-G1B?

The Cummins KTA38-G1B is rated at 788 kVA standby / 713 kVA prime at 50 Hz (1,500 rpm); and 963 kVA standby / 875 kVA prime at 60 Hz (1,800 rpm).

Does the KTA38-G1B run at 50 Hz or 60 Hz?

The Cummins KTA38-G1B is available for both 50 Hz (1,500 rpm) and 60 Hz (1,800 rpm).

What fuel does the Cummins KTA38-G1B use?

The Cummins KTA38-G1B is a diesel generator-set engine.

What is the displacement and cylinder configuration of the KTA38-G1B?

The Cummins KTA38-G1B is a V12 (12-cylinder) engine with a displacement of 38 L.

What is the catalog status of the Cummins KTA38-G1B?

The Cummins KTA38-G1B is marked active in this database. Confirm current production and availability with the manufacturer; catalog status is not a live supply check.

Are reference documents available for the KTA38-G1B?

This page links reference documents for the Cummins KTA38-G1B. Check each document's title, model coverage, revision and rating conditions before using it for selection.

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