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The 3516B diesel generator sets are made to meet your mission critical, continuous, standby and prime applications. Producing reliable power from 1750 to 2500 kVA at 50 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. Our integrated control system keeps you connected through on-site and remote monitoring options. We offer easy-to-use EMCP control panel options, combining your management and diagnostic tools in one. The EMCP 4.4 controller provides multi-generator set paralleling capability, giving you the ability to add generator sets to match your growing power requirements. It's not just quality that matters but customization, choose from a broad range of accessories and bolt-on system expansion attachments. Find flexible packaging to fit unique spatial requirements and environmental conditions. Our 3516B generator sets are developed for such prerequisites, so that you can meet your specific power needs.

Generator Set Specifications

Minimum Rating 1750 kVA 1750 kVA Less
Maximum Rating 2250 kVA 2250 kVA Less
Emissions/Fuel Strategy Low Fuel, Low Emissions Low Fuel, Low Emissions Less
Voltage 380 to 11000 Volts 380 to 11000 Volts Less
Frequency 50 Hz 50 Hz Less
Speed 1500 rpm 1500 rpm Less
Duty Cycle Standby, Mission Critical, Prime, Continuous Standby, Mission Critical, Prime, Continuous Less

Engine Specifications

Engine Model 3516B TA, V-16, 4-Stroke Water-Cooled Diesel 3516B TA, V-16, 4-Stroke Water-Cooled Diesel Less
Bore 6.69 in 170.0 mm Less
Stroke 7.48 in 190.0 mm Less
Displacement 69.0 in 4210.64 l Less
Compression Ratio 14.0:1 14.0:1 Less
Aspiration TA TA Less
Fuel System Electronic unit injection Electronic unit injection Less
Governor Type Adem™3 Adem™3 Less

Generator Set Dimensions

Length - Minimum 233.4 in 5928.0 mm Less
Length - Maximum 6377.0 in 251.7 mm Less
Width - Maximum 90.0 in 2286.0 mm Less
Height - Maximum 93.2 in 2367.0 mm Less
Dry Weight - Genset (minimum) 31900.0 lb 14470.0 kg Less
Dry Weight - Genset (maximum) 40320.0 lb 18290.0 kg Less

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


  • IBC Seismic Certification
  • EU Certification of Conformance (CE)
  • EEC Declaration of Conformity

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

3516B (50 Hz) Standard Equipment

Air Inlet System
  • Air Cleaner; single element canister type

Air Inlet
  • Air Cleaner

  • Package mounted radiator

  • Exhaust flange outlet

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

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

Power Termination
  • Bus Bar

Control Panels
  • Programmable protective relaying functions:
  • Low coolant temperature
  • Reverse power (kW) (32)
  • Low coolant level
  • Environmental sealed front face
  • KVAR/PF modes
  • 6 Customer programmable digital inputs
  • Reverse reactive power (kVAr) (32RV)
  • Reactive droop capability
  • Over / under voltage (2 7/ 59)
  • 0 True RMS AC metering, 3-phase, +/-2% accuracy
  • EMCP 4.2B
  • Operating hours
  • Power Factor (per phase & average)
  • Coolant temperature
  • Digital indication for:
  • kVA (per phase, average & percent)
  • 3-phase voltage sensing
  • 4 Programmable relay outputs (Form A)
  • 4 Programmable relay outputs (Form A)
  • kW (per phase, average & percent)
  • Failure to start (overcrank)
  • Alarm acknowledge
  • Low oil pressure
  • Oil pressure (psi, kPa or bar)
  • Accessory module data link
  • Generator set packages include Caterpillar' s Voltage Regulator
  • 24 Volt DC operation
  • Auto/start/stop control
  • Min / max exciter
  • Amps (per phase & average)
  • Controls:
  • Speed adjust
  • Limiter and exciter diode monitor
  • Generator mounted - rear facing
  • Overspeed - Emergency stop
  • RPM - DC volts
  • Cat Connect
  • Warning / shutdown with common LED indication of shutdowns for:
  • High coolant temperature
  • DC volts
  • PLC functionality
  • Serial annunciator module data link
  • kW-hr (total) - kVAr-hr (total)
  • 1 Programmable digital outputs
  • Customizable screens
  • Frequency (Hz)
  • IVR includes:
  • Text alarm/event descriptions
  • 1 Programmable relay outputs (Form C
  • Over / under frequency (81 o/u)
  • Load histogram feature
  • Communications:
  • 3 Analog inputs
  • RFI suppression
  • Overcurrent (50 / 51)
  • Emergency stop pushbutton
  • Engine cool-down timer
  • Volts (L-L & L-N)
  • Number of I/O varies on options selected:
  • Emergency stop - Failure to start (overcrank)
  • Engine cycle crank
  • Customer data link (Modbus RTU)
  • Lamp test

Control Panel
  • EMCP 4 Genset Controller

Cooling System
  • ATAAC - 3516E Package Radiators shipped installed
  • Certified standard PGS provided

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

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

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

Generator and Attachments
  • Low Voltage:
  • 6 Leads
  • Internal excitation
  • Form wound
  • Class H insulation, Class F temperature rise at 40C ambient (105C prime / 130C standby)
  • Permanent magnet
  • Winding temperature detectors
  • Anti Condensation Space Heater
  • Permanent magnet
  • NEMA Class H insulation
  • Class H temperature rise at 40C ambient (125C prime / 150C standby)
  • Busbar connections, right side extension box, bottom cable entry
  • NEMA standard hole pattern
  • Winding temperature detectors
  • 3 Phase brushless, salient pole
  • Medium Voltage:
  • High Voltage:
  • Form wound - Permanent magnet
  • Random wound
  • NEMA Class H insulation, Class H temperature rise at 40C ambient (125C prime / 150C standby
  • Busbar connections, top center mounted, top cable entry
  • NEMA standard hole pattern
  • Winding temperature detectors

Governing System
  • ADEM A3

  • English

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

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

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

3516B (50 Hz) Optional Equipment

Control System
  • EMCP 4.3, EMCP 4.4

  • Exhaust mufflers

Air Inlet System
  • Single element filter
  • Dual element air cleaner

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

Cooling System
  • Optional installed radiators
  • Coolant
  • Standard ambient ATAAC radiators
  • Optional installed ATAAC radiators
  • Water level switch gauges
  • Standard ambient radiators

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

Crankcase System
  • Explosion relief valves
  • No explosion relief valves
  • Ventilation system

Control Panels
  • Load share module
  • Generator temperature monitoring & protection
  • Remote monitoring software
  • EMCP 4.2
  • EMCP 4.3
  • EMCP 4.4
  • Digital I/O module

Exhaust System
  • Y-Adapters
  • Flange and exhaust expanders
  • Flanges
  • Exhaust offset
  • Tier 4 clean emissions module
  • Tier 4 clean emission MOD Kits
  • Mufflers
  • Clean emission parts
  • Tier 4 dosing cabinet
  • Elbows
  • Flexible fittings

Fuel System
  • Primary Fuel Filter
  • Fuel Priming Pumps (Tier 4) - Manual or electric

  • US aid emblem
  • Special paint (Colors other than Caterpillar yellow or high performance paints)
  • The following options are based on regional and product configuration:
  • EEC Declaration of Conformity
  • Integral & sub-base fuel tanks
  • CSA Certification
  • Automatic transfer switches (ATS)
  • Enclosures: sound attenuated, weather protective
  • EU Certificate of Conformance (CE)
  • Seismic Certification per applicable building codes: IBC 2000, IBC 2003, IBC 2006, IBC 2009, CBC 2007
  • Integral & sub-base UL listed dual wall fuel tanks
  • UL 2200 package

  • Jacket water heater
  • Charging alternator
  • Battery chargers
  • Oversize batteries
  • Heavy-duty starting system
  • Air starting motor with control and silencer

Generators and Attachments
  • Low / Medium voltage: 380/400/415 volts, 3 phase 1500 rpm. RW, PM, No. of Leads = 6, Pitch = .6667: 1600 and 1800 Frames
  • Thermostate for space heater
  • Space heater
  • Low / Medium voltage: 380/400/415 volts, 3 phase 1500 rpm. RW, IE, No. of Leads = 6, Pitch = .6667: 1600 Frame
  • Generator conversion
  • Differntial current transformers (DCT) 8.7 kV and 15 kV classes
  • Alternator air cleaner
  • Differential current transformers (DCT)

  • Pyrometer and thermocouples

Lubrication System
  • Oil level regulator
  • Prelube pumps
  • Lube oil in standard sump

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

  • Spring-type vibration isolator
  • IBC isolators
  • Rubber anti-vibration mounts

Power Connections
  • Neutral ground connections
  • Center post busbar
  • Right side power connections
  • Ground cables between generator and terminal box
  • Rear power connections
  • 2700 Frame, four lead, four terminal
  • Left side power connections
  • Low voltage circuit breakers

Special Tests / Reports
  • PGS test report @ 0.8 power factor
  • Torsional vibration analysis reports
  • PGS test report @ 1.0 power factor
  • Fuel consumption test
  • generator test report
  • Standard engine test charge
  • OSHPD certification
  • Generator set fuel consumption test
  • Canadian Standards Association certification
  • IBC certification

Starting and Charging
  • Starter cover
  • 24 Volt battery set - Dry
  • Electric starting motors
  • Engine barring device
  • Air starting motors
  • Jacket water heaters
  • Air pressure regulator
  • 10, 20, 35 and 50 amp battery chargers

Extended Service Coverage
  • Platinum, Gold and Silver coverage

Application Centre

Explore valuable resources for generator sizing, specification, and training materials. SpecSizer evaluates load types, collects data, and organises 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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