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3516E (60 Hz) Standard Equipment

Air Inlet
  • Air Cleaner

Air Inlet System
  • Air cleaner
  • Single element canister type with service indicator

  • Package mounted radiator

  • Exhaust flange outlet

  • Secondary fuel filter
  • Primary fuel filter with integral water separator
  • Fuel priming pump

  • Matched to the performance and output characteristics of Cat engines
  • IP23 Protection

Power Termination
  • Bus Bar

  • Heavy-duty starting system
  • Charging alternator

Control Panel
  • kVAr (per phase, average & percent)
  • 2 Programmable relay outputs (Form C)
  • 6 Programmable digital inputs
  • Customer data link (Modbus RTU)
  • Controls:
  • Emergency stop pushbutton
  • kVA (per phase, average & percent)
  • EMCP 4.2 controller includes:
  • Operating hours
  • 4 Programmable relay outputs (Form A)
  • Emergency stop
  • Reverse reactive power (kVAr) (32RV)
  • Generator mounted - rear facing
  • Lamp test
  • Programmable protective relaying functions:
  • 2 Programmable digital outputs
  • Coolant temperature
  • Alarm acknowledge
  • Over / under frequency (81 o/u)
  • kW (per phase, average & percent)
  • Over / under voltage (27/59)
  • DC volts
  • Low coolant level
  • Environmental sealed front face
  • Overspeed
  • Frequency (Hz)
  • Overcurrent (50/51)
  • Digital indication for:
  • Amps (per phase & average)
  • High coolant temperature
  • Engine cool-down timer
  • Text alarm / event descriptions
  • Communications:
  • 24 Volt DC operation
  • Low coolant temperature
  • Warning / shutdown with common LED indication of shutdowns for:
  • Generator phase sequence
  • Serial annunciator module data link
  • Panel Lights
  • Failure to start (overcrank)
  • Speed adjust
  • Power Factor (per phase & average)
  • kVAr-hr (total)
  • Oil pressure (psi, kPa or bar)
  • Engine cycle crank
  • EMCP 4.2
  • Low oil pressure
  • Volts (L-L & L-N)
  • Reverse Power (kW) (32)
  • kW-hr (total)
  • True RMS AC metering, 3-phase, +/-2% accuracy
  • Accessory module data link
  • EMCP 4.2B or EMCP 4.3 Genset Controller

  • Track master link

Cooling System
  • Radiator fan and fan drive
  • Coolant level sensors
  • JWAC
  • Fan and belt guards
  • Coolant drain line with valve
  • Caterpillar extended life coolant

Exhaust System
  • Flanged faced outlet(s)
  • Dry exhaust manifold

Fuel System
  • Fuel cooler; not included with packages without radiator
  • Secondary fuel filters
  • Fuel priming pump
  • Flexible fuel lines - shipped loose

Generators and Attachments
  • 3 Phase brushless, salient pole
  • Winding temperature detectors
  • Permanent magnet
  • NEMA standard hole pattern
  • Form Wound
  • Right side extension terminal box, bus bar connections, top mounted, bottom cable entry
  • Class H insulation, Class F temperature rise at 40C ambient (105C prime/130C standby)
  • Anti condensation space heater
  • 6 Lead

Governing System

  • English

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

Mounting System
  • Rubber anti-vibration mounts (shipped loose)
  • Rails - engine/generator/radiator mounting

Starting / Charging System
  • 45 Amp charging alternator
  • Battery and battery rack w/cables
  • Battery disconnect switch
  • 24-volt electric starting motor

  • Flywheel and flywheel housing-SAE No. 00
  • Paint: Caterpillar yellow with high gloss black rails & radiator
  • SAE standard rotation
  • Right hand servicing
  • Paint - Caterpillar Yellow except rails and radiators gloss black

3516E (60 Hz) Optional Equipment

Air Inlet System
  • Remote air inlet adapters
  • Air inlet protection
  • Heavy duty air cleaners
  • Dual element air cleaners

Circuit Breakers
  • Cable entry options
  • 1600, 2000, 2500, 3000, 4000, 5000 Amp, 3 Pole, UL-100% Rated Circuit Breakers
  • Circuit breaker harnesses
  • 2000, 2500, 3200, 4000, 5000 Amp, 3 Pole, IEC Rated Circuit Breakers
  • P Frame breaker connections
  • Optional busbar power connections
  • Masterpact breaker connections
  • Busbar connections
  • 2000, 2500, 3200, 4000 Amp, 4 Pole, IEC-Rated Circuit Breakers
  • R Frame breaker connections

Power Termination
  • Circuit breakers, IEC compliant

Control Panel
  • Annunciator modules
  • Language options
  • Voltage raise / lower switch
  • Mounting group - External box clips
  • PC monitoring (Remote and local)
  • Remote speed adjust
  • Customer interface options
  • EMCP 4.3, EMCP 4.4
  • Generator temperature monitoring
  • Auxiliary box
  • Load share module options
  • Vandal proof panel door
  • Ground

Cooling System
  • Expansion tanks
  • Water level switch gauges
  • Optional Serpentine radiators
  • Optional ATAAC radiators

Exhaust System
  • Flexible fittings
  • Flanges
  • Elbows
  • Mufflers
  • Y Adapters
  • Flanges and exhaust fittings

Fuel System
  • Duplex fuel filters
  • Primary fuel filters

Generators and attachments
  • Alternator air cleaners
  • Primary fuel filters
  • Differential current transformers - 8.7 and 15 kV class

  • Pyrometer and thermocouples

Lube System
  • Electric prelube pump
  • Lube oil in standard sump
  • Oil level regulator
  • Manual prelube pum

Mounting System
  • Spring type vibration isolators
  • Puck style low efficiency lsolators
  • IBC seismic vibration isolators NORAD

Power Connections
  • Neutral ground connections
  • 2700 & 3000 Frame
  • Grounding groups

Special Tests / Reports
  • Generator set consumption test
  • Torsional vibration analysis
  • Standard engine test charge
  • Fuel consumption test
  • IBC certifications
  • PGS test report @ 0.8 power factor
  • PGS test report @ 1.0 power factor
  • Generator set test report

Starting / Charging System
  • Starter covers
  • Air starting motors
  • Engine barring group
  • Air pressure regulator
  • Electric starting motors
  • Jacket water heaters
  • 10, 20, 35 and 50 Amp battery chargers
  • 24 Volt battery set - Dry

  • US aid emblem
  • Special paint colors

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

EMCP 4 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


  • UL2200 Listed
  • CSA Certified
  • IBC Seismic Certification
  • OSHPD pre-approval
  • EEC Declaration of Conformity
  • EU Declaraton of Incorporation
  • Eurasian Conformity (EAC) Mark

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

World Wide Product Support

  • Cat dealers have over 1,800 dealer branch stores operating in 200 countries
  • Your local Cat dealer provides extensive post-sale support, including maintenance and repair agreements


The 3516E diesel generator sets have been developed to meet your continuous, standby and prime applications and match your power standards. Producing reliable power from 2500 to 2750 ekW at 60 Hz, each generator set has been designed to meet ISO 8528-5 transient response requirements and to accept 100 percent rated load in one step. The generator set is US EPA Stationary Emergency Use Only (Tier 2) certified.

Generator Set Specifications

Minimum Rating 2500 eKW 2500 eKW Less
Maximum Rating 2750 ekW 2750 ekW Less
Emissions/Fuel Strategy Tier 2 Tier 2 Less
Voltage 416 to 13,800 Volts 416 to 13,800 Volts Less
Frequency 60 Hz 60 Hz Less
Speed 1800 rpm 1800 rpm Less
Duty Cycle Standby, Mission Critical, Prime Standby, Mission Critical, Prime Less

Engine Specifications

Engine Model 3516E, SCAC, V-16, 4-Stroke, Water-Cooled Diesel 3516E, SCAC, V-16, 4-Stroke, Water-Cooled Diesel Less
Bore 6.69 in 170.0 mm Less
Stroke 8.47 in 215.0 mm Less
Displacement 4765.0 in³ 78.1 l Less
Compression Ratio 14.3:1 14.3:1 Less
Aspiration ATAAC ATAAC Less
Fuel System MEUI MEUI Less
Governor Type Adem™ A5 Adem™ A5 Less

Generator Set Dimensions

Length - Maximum 324.0 in 8238.0 mm Less
Width - Maximum 104.0 in 2640.0 mm Less
Height - Maximum 132.0 in 3342.0 mm Less
Dry Weight - Genset (maximum) 40750.0 lb 18480.0 kg Less

Why Choose Cat® Electric Power?

Caterpillar offers a comprehensive variety of electric power systems, customized to fit your needs. Our specialized systems deliver high power and performance in industries across the globe. With Caterpillar, you get outstanding manufacturing quality, expert support, and the essential tools and applications to complete any project.

Learn More About Electric Power

EMCP 4 Generator Set Controls

Cat generator sets provide a complete factory-built solution with fully featured standard and advanced controls. Optional accessories enhance the capabilities of the genset package-mounted control system.

Learn More

Application Center

Explore valuable resources for generator sizing, specification, and training materials. SpecSizer evaluates load types, collects data, and organizes it to help you select the generator set that's best for you. Find product comparisons, technical data, product sizing, and more using our technical information portal (TIP) specifically created for consultants, architects, engineers, and owners.

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