Haifeng Machinery
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SDEC

SDEC 6KTAA25-G310

K Series

In Production

The SDEC 6KTAA25-G310 is a 25-litre inline-6 diesel engine for generator sets, rated at 644 kVA / 515 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
2026-07-24
Package route
diesel generator sets
Standby Power · 50 Hz
644 kVA
Electrical Output
515 kWe
Cylinders
L6
Displacement
25 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 Power520468585
Standby Power572515643.8

60 Hz1800 RPM

kWmkWekVA
Prime Power572515643.8
Standby Power629566707.5

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SDEC 6KTAA25-G310 25L L6 diesel generator engine — 644 kVA standby specifications

SDEC 6KTAA25-G310 generator set context

The SDEC 6KTAA25-G310 is listed here as a diesel generator-drive engine for 50 Hz and 60 Hz generator sets, with a headline 644 kVA / 515 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

6ktaa25g3106KTAA25 G310SDEC 6KTAA25-G310K Series 6KTAA25-G310

Technical Specifications

BrandSDEC
Model6KTAA25-G310
SeriesK Series
ConfigurationL6
Cylinders6
Displacement25 L
Fuel TypeDiesel
Ignition TypeCompression Ignition
Cooling MethodLiquid-Cooled
Emissions StandardChina National Stage III / Unregulated
Country of OriginChina

Frequently asked questions

What is the power output of the SDEC 6KTAA25-G310?

The SDEC 6KTAA25-G310 is rated at 644 kVA standby / 585 kVA prime at 50 Hz (1,500 rpm); and 708 kVA standby / 644 kVA prime at 60 Hz (1,800 rpm).

Does the 6KTAA25-G310 run at 50 Hz or 60 Hz?

The SDEC 6KTAA25-G310 is available for both 50 Hz (1,500 rpm) and 60 Hz (1,800 rpm).

What fuel does the SDEC 6KTAA25-G310 use?

The SDEC 6KTAA25-G310 is a diesel generator-set engine.

What is the displacement and cylinder configuration of the 6KTAA25-G310?

The SDEC 6KTAA25-G310 is an inline-6 (6-cylinder) engine with a displacement of 25 L.

What is the catalog status of the SDEC 6KTAA25-G310?

The SDEC 6KTAA25-G310 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 6KTAA25-G310?

This page links reference documents for the SDEC 6KTAA25-G310. Check each document's title, model coverage, revision and rating conditions before using it for selection.

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