3516B (50 Hz) 2500 kVA with Upgradeable Package

3516B Generator Set

Producing reliable power from 2000 to 2500 kVA at 50 Hz, our 3516B diesel generators are made to meet your mission critical, continuous, standby and prime applications. We’ve designed each to ISO 8528-5 transient response requirements and to accept 100% rated load in one step. Cat® generators offer both low fuel consumption and low emission systems.
Q. Does this generator comply with ISO 8528 guidelines?
A. Yes, the 3516B, like Cat generators, is tested in accordance with the load steps outlined in with ISO 8528, Part 5.
Q. Are Cat generators easy to install?
A. Cat generators can be configured with a number of options for ease of installation.
Q .Does Cat’ have much experience with electric power generation?
A. Cat has over 80 years experience with on-site and portable power and has shipped millions of generators to customers around the world.
Q. Does Cat offer generators that support my Sustainability goals?
A. Cat offers generators that can run on a number of renewable fuels including HVO, biodiesel, landfill gas, sewage gas and more.
Q. Will this generator be able to provide emergency power on hot summer days?
A. Most Cat 3500 Series generators can operate in ambient temperatures up to 50°C (122°F), reliably providing power when it is needed.

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


  • EU Declaration of Conformity
  • EU Declaration of Incorporation
  • Eurasian Conformity
  • Telecommunication Lab of China

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

Worldwide 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

Standard Equipment

Air Inlet System
  • Air cleaner; single element canister type
Control Panels
  • 0 True RMS AC metering, 3-phase, +/-2% accuracy
  • Accessory module data link
  • Low oil pressure
  • 1 Programmable relay outputs (Form C)
  • Reverse power (kW) (32)
  • Warning/shutdown with common LED indication of shutdowns for:
  • Environmental sealed front face
  • Programmable protective relaying functions:
  • kW-hr (total)
  • Auto/start/stop control
  • Generator set packages include Caterpillar's voltage
    regulator (IVR). IVR includes reactive droop capability, 3-phase voltage sensing,
    KVAR/PF modes, RFI suppression, min/max exciter.
    Limiter and exciter diode monitor
  • EMCP 4.2B
  • 6 Customer programmable digital inputs
  • Load histogram feature
  • Emergency stop pushbutton
  • Reverse reactive power (kVAr) (32RV)
  • Customizable screens
  • Failure to start (overcrank)
  • kW (per phase, average & percent)
  • Low coolant level
  • PLC functionality
  • Communications:
  • kVAr-hr (total)
  • Engine cycle crank
  • Coolant temperature
  • kVA (per phase, average & percent)
  • Controls:
  • High coolant temperature
  • Generator phase sequence
  • Digital indication for:
  • Over/under frequency (81 o/u)
  • Number of I/O varies on options selected
  • Low coolant temperature
  • Alarm acknowledge
  • 1 Programmable digital outputs
  • Amps (per phase & average)
  • Cat connect
  • Overspeed
  • Engine cool-down timer
  • Operating hours
  • Oil pressure (psi, kPa or bar)
  • RPM
  • Power factor (per phase & average)
  • Serial annunciator module data link
  • 24 Volt DC operation
  • Overcurrent (50/51)
  • Generator mounted - rear facing
  • Over/under voltage (27/59)
  • 3 Analog inputs
  • 4 Programmable relay outputs (Form A)
  • Speed adjust
  • Text alarm/event descriptions
  • kVAr (per phase, average & percent)
  • Customer data link (Modbus RTU)
  • Frequency (Hz)
  • Volts (L-L & L-N)
  • DC volts
  • Lamp test
Cooling System
  • Certified standard PGS provided
Exhaust System
  • Flanged faced outlet(s)
  • Dry exhaust manifold
Fuel System
  • Fuel cooler; not included with packages without radiator
  • Flexible fuel lines - shipped loose
  • Secondary fuel filters
  • Fuel priming pump
  • Flywheel and flywheel housing - SAE No. 00
  • SAE standard rotation
  • Caterpillar yellow with high gloss black rails and radiator
  • Right hand servicing
Generator and Attachments
  • Low voltage:
  • Busbar connections, right side extension box, bottom cable entry
  • Class H insulation, Class F temperature rise at 40C ambient (105C prime/130C standby)
  • NEMA standard hole pattern
  • Internal excitation (IE)
  • Random wound
  • Anti-condensation space heater
  • Winding temperature detectors
  • Form wound
  • 6 Leads
  • High voltage:
  • Medium voltage:
  • 3 Phase brushless, Salient pole
  • Permanent magnet excitation (PMG)
  • NEMA Class H insulation system, Class H temperature rise at 40C ambient (125C prime/150C standby)
  • Busbar connections, top center mounted, top cable entry
Governing System
  • ADEM A3
  • Parts book
Lubrication System
  • Oil drain lines and valve
  • Fumes disposal
  • Oil filter, filler and dipstick
  • Lubricating oil
  • Gear type lube oil pump
  • Integral lube oil cool
Mounting System
  • Rails - Engine/generator/radiator mounting
  • Rubber anti-vibration mounts - shipped loose
  • Anti-vibration mounts (shipped loose)
Starting System
  • Battery and battery rack w/cables
  • 24 Volt electric starting motor
  • 45 Amp Charging alternator
  • Battery disconnect switch

Additional information

Offering Type

Generator Set Specifications - Standby Rating

2500 kVA

Generator Set Specifications - Prime Power Rating

2275 kVA

Generator Set Specifications - Emissions/Fuel Strategy

Low Fuel, Low Emissions

Generator Set Specifications - Voltage

380 to 415 Volts

Generator Set Specifications - Frequency

50 Hz

Generator Set Specifications - Speed

1500 rpm

Generator Set Specifications - Duty Cycle

Standby, Mission Critical, Prime, Continuous

Generator Set Specifications - Maximum Rating

2500 kVA

Generator Set Specifications - Minimum Rating

2000 kVA

Engine Specifications - Engine Model

3516B TA, V-16, 4-Stroke Water-Cooled Diesel

Engine Specifications - Bore

170 mm ( 6.69 in )

Engine Specifications - Stroke

215 mm ( 8.46 in )

Engine Specifications - Displacement

78 l ( 4764.73 in )

Engine Specifications - Compression Ratio


Engine Specifications - Aspiration


Engine Specifications - Fuel System

Electronic unit injection

Engine Specifications - Governor Type


Generator Set Dimensions - Length - Maximum

6282 mm ( 247.3 in )

Generator Set Dimensions - Width - Maximum

2286 mm ( 90 in )

Generator Set Dimensions - Height - Maximum

2494 mm ( 98.2 in )

Generator Set Dimensions - Dry Weight - Genset (maximum)

15535 kg ( 34250 lb )

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