D50 GC Generator Set

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Caterpillar is leading the power generation marketplace with Power Solutions engineered to deliver unmatched flexibility, expandability, reliability, and cost-effectiveness.

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Duty Cycle Standby
Emissions/Fuel Strategy U.S. EPA Cert., Tier 3, SCAQMD Compliant
Frequency 60 Hz
Maximum Rating 50 ekW
Minimum Rating 50 ekW
Speed 1800 rpm
Voltage 208 to 600 Volts
Aspiration Turbocharged
Bore 4.1in
Compression Ratio 18.2:1
Displacement 269in
Engine Model C4.4, In-line 4, 4-cycle diesel
Fuel System Common Rail
Governor Type Mechanical, ADEM™A4
Stroke 5in
Dry Weight - Genset (maximum) 2055lb
Height - Maximum 48in
Length - Maximum 77.2in
Width - Maximum 43.3in

Standard Equipment:

  • Certificates
    • IBC seismic and wind Certifications
  • Air Inlet System
    • Air cleaner
    • Cartridge type air filter
  • Circuit Breakers
    • Second circuit breaker box
    • Power terminal strip
    • Breakers (100% UL rated)
    • 3-Pole 100% rated
  • Charging System
    • NFPA battery charger UL10A 120VAC
  • Control Panel
    • GCCP 1.2 Control panel
  • Exhaust System
    • Stub pipe, gaskets, raincap and SAE exhaust flange for customer use - shipped loose
  • Fuel System
    • Standard open set fuel tank/base supplied base, formed steel with single wall integral 24-hour fuel tank
  • Cooling System
    • Fan drive, battery charging alternator drive
    • Caterpillar extended life coolant
    • Radiator and cooling fan with guards
    • Coolant drain line with valve
    • Radiator stone guard
  • Control Panels
    • NFPA110 bundle includes:
    • WCA1 Low coolant temperature alarm
    • FSS Low fuel level alarm & indication panel circuitry required when sub-base tank is selected
    • WSS1 Low coolant level shut down
    • PBC10NU NFPA battery charger
    • Oil temperature gauge and sender
    • PAA1 Panel mounted audible alarm
    • A Coolant heater, remote annunciator or 0.8 power factor test may be required depending on the application
    • Audible alarm
    • Remote E-stop button
    • Ground fault relay
    • Discrete I/O module
    • Remote annunciator module
    • Volt free contacts genset run and common alarm
    • Fuel level reading
    • Protective devices:
    • Low coolant temperature alarm
    • Low coolant level shutdown
    • Overload shutdown via breaker
  • Generator
    • 12 Leads
  • Governing System
    • Mechanical and electrical governing system - model dependent
  • Lube System
    • Lubricating oil
    • Oil drain line with valve
  • General
    • Engine and alternator pre-paint, Caterpillar yellow
  • Starting/charging System
    • Batteries
    • 24V battery with rack and cables

Optional Equipment:

  • Certificates
    • IBC seismic and wind Certifications
  • Air Inlet System
    • Cartridge type air filter
  • Alternator System
    • R Frame auxilliary winding
  • Charging System
    • NFPA battery charger UL10A 120VAC
  • Circuit Breakers
    • Breakers (100% UL rated)
    • Power terminal strip
    • 3-Pole 100% rated
    • Second circuit breaker box
  • Control Panels
    • Volt free contacts genset run and common alarm
    • Oil temperature gauge and sender
    • Remote E-stop button
    • Protective devices: Low coolant temperature alarm - Low coolant level shutdown - Fuel level reading - Overload shutdown via breaker
    • Audible alarm
    • Remote annunciator module
    • Discrete I/O module
    • NFPA110 bundle includes: FSS Low fuel level alarm & indication panel circuitry required when sub-base tank is selected - WSS1 Low coolant level shut down - WCA1 Low coolant temperature alarm - PAA1 Panel mounted audible alarm - PBC10NU NFPA battery charger - A Coolant heater ,remote annunciator or 0.8 power factor test may be required depending on the application
    • Ground fault relay
  • Cooling System
    • Radiator transition flange
  • Enclosures
    • External emergency stop
    • Sound attenuated enclosure, Level 2
    • Panel viewing window
  • Exhaust System
    • 10, 25 and 35 dBA silencer systems
    • Overhead silencer mounting kit
  • Fuel System
    • 5 Gallon spill containment
    • 209 and 394 gallon sub-base fuel tanks
    • Tank riser
    • Emergency vent pipe
    • 5 Gallon fill containment
  • Heating Elements
    • Coolant heater
    • Wiring for canopy space heater
    • Battery heater
    • Lube oil sump heater
    • Anti-condensation heater
    • Wiring for canopy space heater
    • Jacket water heater
  • Generators
    • Permanent magnet excitation (PMG) generator
    • Permanent magnet excitation (PMG) generator
  • Mounting System
    • Seismic vibration isolators
  • Tests
    • 4 Hour factory test
    • PGS Test report @ 1.0 power factor
    • PGS Test report @ 0.8 power factor
    • Generator test report
Renee HerndonRenee Herndon
21:55 29 Feb 24
Dalton was very helpful, The road construction, however, was not! 😂I would rather have to sand paper an alligators @$$ in a phone booth that to get in that mess again.
Michael BirrenMichael Birren
14:58 24 Feb 24
I purchased a used C-15 from a customer of Greg Pool was a running take out. I picked up the engine from the Greg Pool Cat near Nags Head NC. They started they had done all service on this engine stated the hours and all items replaced during the life of engine under their care. I just recently put the engine in my boat after 2 years of building the vessel I find that everything they said about the engine was a LIE!!! Turbo was Bad, After cooler was not updated to the newer version for the C-15 it was missing a terminal Resistor that was clearly stolen off the engine which created a major issue with start up upon installation. Greg Pool Caterpillar stated the hours at 3300 we find out there were 5700 hours. I didn’t do a start up or test run which I regret because i was dealing with a Caterpillar dealer i thought i could trust them. Clearly not Buyers Be Ware if your dealing with Greg Pool Caterpillar in NC. I have 3 of the C-15 engines in my Work boats here in Tampa Fl and my Cat dealership here is Ring power who have done an amazing job to get me going with this Engine. I am very Disappointed in The Caterpillar company for allowing such A dealership to exist.
David LawrenceDavid Lawrence
13:04 22 Feb 24
Brandon PierceBrandon Pierce
22:00 18 Feb 24
Darin NoeDarin Noe
01:17 16 Feb 24
Jose SotoJose Soto
15:26 23 Sep 23
Hunter ElliottHunter Elliott
16:17 07 Sep 23
Rick Kelly-CrapseRick Kelly-Crapse
21:06 25 Aug 23
They had all my parts for my 3208 Cat.Friendly folks at parts counter.
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