3516 (60 Hz)

3516 Diesel Generator Set

Producing reliable power from 1450 to 1750 ekW at 60 Hz, our 3516 diesel generator sets are made to meet your mission critical, continuous, prime and standby applications. We’ve designed each to ISO 8528-5 transient response requirements and to accept 100% rated load in one step. Generator sets offer both low fuel consumption and low emission systems.

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


  • UL 2200 Listed
  • CSA
  • IBC seismic certification
  • OSHPD pre-approval

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