Overview
Caterpillar is leading the power generation marketplace with Power Solutions engineered to deliver unmatched flexibility, expandability, reliability, and cost-effectiveness.
Specifications
Units:
| Standby Rating | 4000(no fan)/3900 kVA |
| Prime Power Rating | 3600(no fan)/3500 kVA |
| Emissions/Fuel Strategy | Low Fuel, Low Emissions |
Benefits & Features
Cat Generator Set Package
- Cat generator set packages have been fully prototype tested
- Accepts 100% block load in one step and meets NFPA 110 loading requirements
- Conform to ISO 8528-5 steady state and transient response requirements
Cat Diesel Engine
- Reliable, rugged, durable design
- Field-proven in thousands of applications worldwide
- Four-stroke-cycle diesel engine combines consistent performance and excellent fuel economy with minimum weight
SR5 Alternator
- Superior motor starting capability minimizes need for oversizing alternator
- Designed to match performance and output characteristics of Cat diesel engines
- Robust Class H insulation
December 4, 2025
Specifications
Units:
| Standby Rating | 4000(no fan)/3900 kVA |
| Prime Power Rating | 3600(no fan)/3500 kVA |
| Emissions/Fuel Strategy | Low Fuel, Low Emissions |
| Voltage | 400 to 11000 Volts |
| Frequency | 50 Hz |
| Speed | 1500 RPM |
| Duty Cycle | Standby, Mission Critical, Prime, Continuous |
| Maximum Rating | 4000 kVA |
| Minimum Rating | 3150 kVA |
| Engine Model | C175-20 SCAC, V-20, 4-Stroke Water-Cooled Diesel |
| Bore | — |
| Stroke | — |
| Displacement | — |
| Compression Ratio | 15.3:1 |
| Aspiration | Turbo Aftercooled |
| Fuel System | Common Rail |
| Governor Type | ADEM� A4 |
| Length - Minimum | — |
| Length - Maximum | — |
| Width - Minimum | — |
| Width - Maximum | — |
| Height - Minimum | — |
| Height - Maximum | — |
| Dry Weight - Genset (minimum) | — |
| Dry Weight - Genset (maximum) | — |
Benefits & Features
Cat Generator Set Package
- Cat generator set packages have been fully prototype tested
- Accepts 100% block load in one step and meets NFPA 110 loading requirements
- Conform to ISO 8528-5 steady state and transient response requirements
Cat Diesel Engine
- Reliable, rugged, durable design
- Field-proven in thousands of applications worldwide
- Four-stroke-cycle diesel engine combines consistent performance and excellent fuel economy with minimum weight
SR5 Alternator
- Superior motor starting capability minimizes need for oversizing alternator
- Designed to match performance and output characteristics of Cat diesel engines
- Robust Class H insulation
Cat ECS Control Panel
- User-friendly interface and navigation
- Scalable system to meet a wide range of installation requirement
- Expansion modules and site-specific programming for specific customer requirements
Cooling System
- Designed to operate in standard ambient temperatures up to 50°C (122°F)
- Contact your Cat Dealer for specific ambient and altitude capabilities
Certifications
- EU Declaration of Conformity
- EU Declaration of Incorporation
- Eurasian Conformity (EAC)
- IBC seismic certification
One Safe Source
- Components used in the generator set are selected at the design stage to provide optimum package performance
- The generator set is fully assembled at a Caterpillar facility following our quality guidelines
- Each generator set package is tested before leaving the Caterpillar facility
- Cat product support, including dealer service, parts and warranty covers the entire Cat power system
Data not available.
Standard Equipment
- Air Inlet
- 4 x Single element canister air cleaners with service indicator(s).
- Control Panel
- Engine cycle crank
- Oil pressure (psi, kPa or bar)
- Digital Indicators
- Coolant temperature
- Environmental sealed front face
- Frequency (Hz)
- True RMS AC metering, 3-phase, +/-2% accuracy
- Text alarm/event descriptions
- Low coolant level
- Volts (L-L & L-N)
- Auto/start/stop control
- Warning/shutdown Indicators:
- Emergency stop pushbutton
- Engine cool-down timer
- DC volts
- High coolant temperature
- Operating hours
- Low oil pressure
- Cat ECS 100
- Amps (per phase & average)
- 4 Programmable relay Inputs
- Alarm acknowledge
- 4 Programmable relay output
- Failure to start (overcrank)
- Overspeed
- Lamp test
- 24 Volt DC operation
- Wall mounted controls
- RPM
- Cooling System
- SCAC cooling
- Coolant sensors
- JW Inlet: 6" ANSI / JW Outlet: 5" Cat Flange
- AC Inlet: 6" ANSI / AC Outlet: 3-1/2" ANSI
- Exhaust
- Dry exhaust manifold
- Bolted flange (ANSI 6" & DIN 150) with bellow for each turbo (Qty 4). 50 Hz
- Fuel
- Filters x 3
- Secondary/tertiary fuel filters
- 4 Micron spin on type
- 10 Micron spin on type
- Engine mounted filters x 3
- Primary fuel filter water/fuel water separator
- Generators and Attachments
- Salient pole
- RFI suppression
- Anti-condensation space heater
- IEC platinum Stator RTDs
- Form wound
- NEMA Class H insulation
- Voltage regulator
- Reactive droop capability
- Min/max Exciter limiter
- 3 Phase voltage sensing
- Exciter diode monitor
- 6 Leads
- 3 Phase brushless
- Right side extension box, bottom cable entry
- Permanent magnet excitation (PMG)
- Class H temperature rise at 40C ambient
- Governing System
- ADEM A4
- Redundant shutdown (Overspeed protection through a duplicate speed sensing system)
- Lube System
- Oil drain lines and valve
- Gear type lube oil pump
- Oil filter, filler and dipstick
- Integral lube Oil cooler
- Lubricating oil
- Fumes disposal
- Mounting Systems
- Rails - Engine/Generator
- Rubber anti-vibration mounts - shipped loose
- Starting / Charging System
- Batteries and battery rack w/cables
- Dual 24 volt electric starting motors
- Battery disconnect switch
- General
- SAE standard rotation
- Right hand servicing
- Paint - Caterpillar yellow with high gloss black rails
Optional Equipment
- Air Inlet Systems
- Single element air cleaner
- Control Panels
- EMCP 4.4
- Controller and MV and HV power connection locations
- Load share module
- Controller voltage and current sensing groups
- Speed adjust
- Annunciator modules
- Customer interface options
- Generator temperature monitoring
- E-Stop
- Interconnect harness
- Generator harness
- Modbus monitoring of packages
- Vandal proof panel door
- Cooling System
- Package mounted radiators
- Remote radiators
- Fuel cooler
- Crankcase Systems
- Explosive relief valves
- Crankcase ventilation system
- Exhaust System
- Front housing - Standby or mission critical
- Front housing - Prime or continuous
- Exhaust collectors/manifold
- Mufflers (15, 25 and 34 dBA)
- Fuel System
- Primary fuel filter
- Generators and Attachments
- Medium voltage - 3000 Frames - 50 Hz, 3 phase, 1500 rpm, FW, PM, No of leads=6, Pitch 0.6667
- Thermostat for space heater
- Generator air cleaner
- Differential current transformers - (5, 9 and 15 kV Class)
- Instrumentation
- Pyrometer and thermocouples
- Lube System
- Lube oil heater
- Lube oil heater with Crankcase explosion relief valves
- Drain group oil pans
- Lubricating oil
- Electric prelube pumps
- Oil filters
- Mounting System
- Rubber anti-vibration mounts
- Spring type linear vibration isolators
- IBC vibration isolators - Shipped loose
- Special Tests / Reports
- Generator test report
- PGS Test report @ 1.0 power factor
- PGS Test report @ 0.8 power factor
- Standard genset TVA (Torsional Vibration Analysis) report
- Custom generator TVA report
- Special test charge - Engine only
- Genset fuel consumption test
- Standard engine test charge
- Starting / Charging System
- 24 Volt electric starting motor
- Air starting motor
- Air pressure regulator
- Starter location covers
- 24 Volt battery set - Dry
- 20, 35 and 50 Amp Battery chargers
- Charging alternators - Dry
- Jacket water heaters
- General
- Special paint - 3500, Colors (other than Caterpillar yellow or high performance paints)
- US aid emblem
- Service tools
- Engine barring group
- Manual
- Engine barring air powered
- control GP - air powered bar group
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