go to top
The World's Leading Online Marketplace for Used, New, and Surplus Industrial Machinery & Equipment ℠

500 KW Cummins #DFEK, Commercial Diesel Generator Set, QSX15-G9 Engine, 480 Volts

Manufacturer: Cummins
Model: DFEK
Year: 2026
kW: 500
Volts: 480 - 480
Stock # 26-DFEK

For Sale by Atlantic Power & Equipment

Surplus Record Dealer Since 2025
  Mark Johnson
  609-96...> Show Seller's Phone Number 609-965-8200 Let the seller know you found their listing on Surplus Record!

Description

DFEK Cummins 500kw 60Hz 480v Commercial Diesel Generator Set w/QSX15-G9 engine

Description

Features:

The Cummins Power Generation DF-series commercial generator set is a fully integrated power generation system providing optimum performance, reliability, and versatility for stationary standby or prime power applications.

A primary feature of the DF Gen Set is strong motor-starting capability and fast recovery from transient load changes. The torque-matched system includes a heavy-duty Cummins 4 cycle diesel engine, an AC alternator with high motor-starting kVA capacity, and an electronic voltage regulator with three phase sensing for precise regulation under steady-state or transient loads. The DF Gen Set accepts 100% of the nameplate standby rating in one step, in compliance with NFPA 110 requirements.

The standard Power Command® digital electronic control is an integrated system that combines engine and alternator controls for high reliability and optimum Gen Set performance. Optional weather-protective enclosures and coolant heaters shield the generator set from extreme operating conditions. Environmental concerns are addressed by low exhaust emission engines, sound-attenuated enclosures, exhaust silencers, and dual-wall fuel tanks. A wide range of options, accessories, and services are available, allowing configuration to your specific power generation needs. Every production unit is factory tested at rated load and power factor. This testing includes demonstration of rated power and single-step rated load pickup. Cummins Power Generation manufacturing facilities are registered to ISO9001 quality standards, emphasizing our commitment to high quality in the design, manufacture, and support of our products. The generator set is CSA certified and is available as UL2200 Listed. The Power Command control is UL508 Listed.

All Cummins Power Generation systems are backed by a comprehensive warranty program and supported by a worldwide network of 170 distributors and service branches to assist with warranty, service, parts, and planned maintenance support. UL Listed Generator Set -

The complete generator set assembly is available Listed to UL 2200. Low Exhaust Emissions - Engine certified to U.S. EPA Nonroad Source Emission Standards, 40 CFR 89, Tier 2. Cummins Heavy-Duty Engine - Rugged 4-cycle industrial diesel delivers reliable power, low emissions, and fast response to load changes. Alternator - Several alternator sizes offer selectable motor starting capability with low reactance 2/3 pitch windings; low waveform distortion with non-linear loads, fault clearing short-circuit capability, and class H insulation. The alternator electrical insulation system is UL1446 Recognized. Permanent Magnet Generator (PMG) - Offers enhanced motor starting and fault clearing short circuit capability. Control System - The PowerCommand electronic control is standard equipment and provides total genset system integration, including automatic remote starting/stopping, precise frequency and voltage regulation, alarm and status message display, AmpSentryTM protection, output metering, auto-shutdown at fault detection, and NFPA 110 compliance. PowerCommand control is Listed to UL508. Cooling System - Provides reliable running at the rated power level, at up to 50oC ambient temperature. Integral Vibration Isolation - Robust skid base supports the engine, alternator, and radiator on isolators, minimizing transmitted vibration. E-Coat Finish - Dual electro-deposition paint system provides high resistance to scratches, corrosion, or fading. Enclosures - Optional weather-protective and sound attenuated enclosures are available. Fuel Tanks - Dual wall sub-base fuel tanks are also offered. Certifications - Generator sets are designed, manufactured, tested, and certified to relevant UL, NFPA, ISO, IEC, and CSA standards. Warranty and Service - Backed by a comprehensive warranty and worldwide distributor network.

Get Your Price from Atlantic Power & Equipment!

Buyers Who Viewed This Listing Also Viewed …

500 KW Cummins #DFEK, diesel generator set, 277/480 Volts, 755 HP @ 1800 RPM, QSX15-G9 NR2 engine, EPA Tier 2, sound attenuated enclosure, 850 gal. sub-base fuel tank, new

Seller: Central States Diesel Generators LLC
Location: Waukesha, WI
Mfr: Cummins
Model: DFEK
*****ETA QTY 2 July 1 2026***** New Cummins 500 kW standby (455 kW prime) diesel generator set, model DFEK. Cummins QSX15-G9 engine rated 755 HP at 1800 RPM, EPA Tier 2 emissions. 3/60/277/480V, 12 lead reconnectable to other voltages. 800 Amp 100% rated main-line circuit breaker. PMG permanent magnet generator. ...more

500 KW Cummins #DFEK, diesel generator set, 277/480 Volts, 3-phase, 1800 RPM, QSX15-G9 engine, 869 gal. fuel tank, 2026

Seller: Midwest Engines & Generators
Location: Edinburgh, IN
Mfr: Cummins
Model: DFEK
Year: 2026
This new Cummins DFEK diesel generator set is a modern industrial standby power system engineered for commercial, municipal, and mission-critical emergency power applications. The unit is rated 500 kW standby at 60 Hz, operating at 1,800 RPM, and produces 277/480V, three-phase power with a reconnectable alternator for ...more

500 KW Cummins #DFEK, diesel generator set, 277/480 Volts, 3-phase, 755 HP @ 1800 RPM, QSX15-G9 engine, Tier 2, sound attenuated enclosure, electronic governor, 2014

Seller: DEPCO Power Systems
Location: Houston, TX
Mfr: Cummins
Model: DFEK
Year: 2014
Generator Set Type: Stand-By Engine Model: QSX15-G9 Fuel Type: Diesel Voltage: 277/480 Model: DFEK Panel: with Autostart and Safety Shutdowns Batteries: Yes Hours: 392 Frequency: 60 Cycles/Hz Phase: Three Phase.

500 KW Cummins #DFEK, diesel generator set, 480 Volts, 2005

Seller: Critical Infrastructure Group LLC
Location: Sparks, NV
Mfr: Cummins
Model: DFEK
Year: 2005
Equipment Type Diesel Generator Fuel Type Diesel Manufacturer Cummins Model # DFEK Serial Number A050731189 Capacity (kW) 500 kW Voltage 480 Phase 3 Frequency 60 Hz Year Manufactured 2005 Condition Used Status In Stock.

Share