250KW Cummins Diesel Generator

$59,000.00

1 or 3 Phase?
Require Automatic Switching?
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Categories: , Tags: SKU: WDG-250-CUM-R/I

Description

250 kW Cummins Diesel Generator

The 250 kW Cummins Diesel Generator delivers robust, efficient power for demanding installations. At its core is the Cummins 6LTAA9.5-G1 6-cylinder, 9.5 L turbocharged, water-cooled diesel engine — designed for durability and reliable operation. This unit includes a premium Stamford UCDI274K alternator and the advanced Deep Sea DSE6120 genset controller for full system monitoring and protection.

Key Specifications

  • Power Output: 250 kW @ 60 Hz
  • Engine Model: Cummins 6LTAA9.5-G1 – 6-cyl, 5.9 L displacement, turbocharged
  • Alternator Model: Stamford UCDI274K – brushless alternator
  • Controller: Deep Sea DSE6120 – automatic start/stop, full diagnostics, and protection features
  • Voltage Options: 110/240 V single-phase or 120/208 V / 120/240 V / 277/480 V three-phase, or custom voltage options available
  • Noise Level: Approx. 69 dB at 7 m
  • Enclosure: Silent IP-65 soundproof and weather-protected canopy

Why Choose the 250 kW Cummins Diesel Generator?

  • Trusted Engine Brand: Cummins engines are known worldwide for durability and global parts support.
  • Premium Components: Equipped with a Stamford UCDI274K alternator and Deep Sea DSE6120 controller to maintain high performance and reliability.
  • Versatile and Powerful: Suitable for commercial sites, large residential applications, backup power systems, or continuous duty roles.
  • Quiet & Built to Last: Sound-attenuated canopy combined with quality engineering for long-term, low-upkeep operation.

Ideal Applications

  • Large commercial buildings, office complexes, retail centres
  • Industrial workshops and manufacturing support power
  • Large residential estates needing whole-house backup power
  • Construction sites and rental fleets requiring on-site dependable power
  • Remote or off-grid installations where robust serviceability matters

Buyer’s Guide – How to Choose the Right Diesel Generator

Not sure which size or configuration you need? Visit our Ultimate Diesel Generator Buyer’s Guide for expert help on sizing, voltage/phase selection, and installation best practices.

Contact Us

Phone: 423.220.3500
Email: sales@wholesale-generators.com
Online Quote: Request a Quote Online


Driven by the Cummins 6LTAA9.5-G1 engine, Stamford UCDI274K alternator and Deep Sea DSE6120 controller — the 250 kW Cummins Diesel Generator offers quiet, dependable and high-performance power for your toughest applications.

Spec Sheets

250KW Cummins Cut Sheet

250KW Cummins 6LTAA9.5-G1 Engine Datasheet

Stamford UCDI274K Alternator

DSE6110/20 MKIII Controller