Electric Power C175-20 (60 Hz) 3150 - 4000 kW Diesel Generator Set

Product Specifications for C175-20 (60 Hz)

Generator Set Specifications

Engine Specifications

Generator Set Dimensions

C175-20 (60 Hz) Standard Equipment

Air Inlet System

  • 4 x Single element air cleaner canisters with service indicator(s).

Control Panel

  • Lamp test
  • oil pressure (psi, kPa or bar)
  • Operating hours
  • 4 programmable relay Inputs
  • Environmental sealed front face.
  • Volts (L-L & L-N)
  • Amps (per phase & average)
  • Low Coolant level
  • Coolant temperature
  • Engine cool-down timer.
  • High Coolant temperature
  • Frequency (Hz)
  • EMCP 4.2
  • Digital indicators:
  • Overspeed
  • True RMS AC metering, 3-phase, +/-2% accuracy
  • Speed adjust
  • Warning / shutdown Indicators:
  • 24-volt DC operation
  • Engine cycle crank
  • 4 programmable relay output
  • Text alarm / event descriptions.
  • Emergency stop pushbutton
  • Auto / start / stop Control
  • RPM
  • Wall mounted controls:
  • Low oil pressure
  • Alarm acknowledge
  • DC Volts
  • Failure to start (overcrank)
  • Emergency stop

Cooling System

  • SCAC cooling
  • Coolant sensors
  • AC Inlet: 6" ANSI / AC Outlet: 3-1/2" ANSI
  • JW Inlet: 6" ANSI / JW Outlet: 5" Cat Flange

Exhaust System

  • Dry exhaust manifold
  • Dual ANSI 18" / DIN 450 flanges. Shipped loose. Support required from installation

Fuel System

  • Primary fuel filter water / fuel water separator
  • 4 Micron spin on type
  • Engine mounted filters x 3
  • Secondary / tertiary fuel filters
  • Filters x 3
  • 10 Micron spin on yype

Generators and attachments

  • 3 Phase brushless
  • Exciter diode monitor
  • Salient pole
  • RFI suppression
  • 6 Leads
  • Anti condensation space heater
  • IEC Platinum stator RTDs
  • Class H temperature rise at 40C ambient
  • Form wound
  • 3 Phase voltage sensing
  • Min / max exciter limiter
  • Permanent magnet
  • Right side extension box, bottom cable entry
  • Reactive droop capability
  • NEMA Class H insulation
  • Voltage regulator:

Governing System

  • ADEM A4
  • Redundant shutdown (Overspeed protection through a duplicate speed sensing system)

Lube System

  • Oil filter, filler and dipstick
  • Gear type lube oil pump
  • Fumes disposal
  • Lubricating oil
  • Integral lube oil cooler
  • Oil drain lines and valve

Mounting Systems

  • Rails - Engine / generator
  • Rubber anti-vibration mounts (shipped loose)

Starting / Charging System

  • Battery disconnect switch
  • Batteries and battery rack w/cables
  • Dual 24 volt electric starting motors


  • Right hand service
  • Paint - Caterpillar yellow with high gloss black rails
  • SAE standard rotation

C175-20 (60 Hz) Optional Equipment

Control Panel

  • Customer interface options
  • Annunciator modules
  • EMCP 4.3
  • Speed adjust
  • EMCP voltage and current sensing groups
  • Generator Harness
  • Generator temperature monitoring
  • E-Stop
  • Modbus monitoring of packages
  • Load share module
  • Interconnect harness
  • EMCP and MV and HV power connection locations
  • Vandal proof panel door


  • Internal excitation (IE)
  • Permanent magnet excitation (PMG)
  • Anti-condensation heater
  • Oversize and premium generators

Power Termination

  • Circuit breakers, UL listed
  • Circuit breakers, IEC compliant

Air Inlet Systems

  • Single element air cleaner

Cooling System

  • Fuel cooler
  • Package mounted radiators
  • Remote radiators

Exhaust System

  • Front housing - Standby or mission critical
  • Exhaust collectors / Manifold
  • Mufflers (15, 25 and 34 dBA silencers)
  • Front housing - Prime or continuous

Fuel System

  • Primary fuel filter


  • Engine barring group
  • Manual
  • Control GP - Air powered bar group
  • Engine Air powered
  • Barring groups:
  • Special paint - 3500

Generators and Attachments

  • Differential current transformers
  • Medium Voltage - 3000 Frames - 60 Hz, 3 phase, 1800 rpm, FW, PM, No of leads=6, Pitch 0.6667
  • Generator air cleaner
  • Thermostat for space heater


  • Pyrometer and thermocouples

Lube System

  • Lube oil heater
  • Drain group oil pans
  • Electric prelube pumps
  • Oil filters
  • Lubricating oil

Crankcase Systems

  • Crankcase ventilation system
  • Explosive relief valves

Mounting System

  • IBC vibration isolators - Shipped loose
  • Rubber anti-vibration mounts
  • Spring type linear vibration isolators

Special Tests / Reports

  • Custom genset TVA report
  • PGS test report @ 0.8 power factor
  • Genset fuel consumption test
  • Special test charge - Engine only
  • Standard genset TVA (Torsional Vibration Analysis) report
  • PGS test report @ 1.0 power factor
  • Standard engine test charge
  • Generator test report

Starting / Charging System

  • Air pressure regulator
  • 20 Amp battery chargers
  • 50 Amp battery chargers
  • 24 Volt electric starting motors
  • Air starting motor
  • Starter location covers
  • Charging alternators - Dry
  • 24 Volt battery sets - Dry
  • Jacket water heaters
  • 35 Amp battery chargers

See how C175-20 (60 Hz) compares against frequently compared products.

Tools And Expert Help At Every Turn

Bringing reliable, off-grid power to hard-to-reach region in Brazil.

When the public utility couldn’t keep up with demand in the isolated city of Boa Vista, Brazil, they turned to Oliveira Energia. Working with their local Cat® dealer, Oliveira designed, built, and launched a 107 MW power plant with Cat generator sets in record time. the plant now delivers excellent performance and reliable, consistent off-grid power for the residents of Boa Vista.

Learn More

Technical Resources

Explore valuable resources for generator sizing, specification, and training materials.

Learn More

Hire Similar Size

View our full lineup of construction equipment rental products featuring a wide range of portable generator rental options as well as mobile generator sets for hire.

Learn More

Cat Connect: Get More from Every Asset

Now there's an easier way to track and manage your equipment anytime, anywhere.

Learn More

Custom Power Solutions

There are no standard power solutions. Cat experts work with you to design a system to meet your individual power needs.

Learn More

Extended Service Coverage

Spend less time managing your equipment and more time running your business with options to protect you against unexpected repair costs.

Learn More

Customer Value Agreements

Every piece of Cat equipment is designed and built to provide maximum productivity and operating economy throughout its working life. Your Cat dealer can help you maintain that built-in value through a Customer Value Agreement (CVA).

Learn More


Calculate what generator size you need by using our commercial and industrial generator sizing calculator, SpecSizer.

Learn More

Product Brochures and More Are Ready to Download!

Full specifications, product brochures and more. Sign up below for additional information. Or for instant access, you can skip this form.

Check out current offers for the C175-20 (60 Hz)

View More Offers