3516C Tier 4 Final

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The 3516C HD generator set has been developed for a wide range of applications, from emergency standby installations such as healthcare and datacenters to continuously powering remote installations. The engines are certified to the US EPA Tier 4 Final emissions levels. Backed by the worldwide network of Cat dealers ready to support your operation with technical support, service, parts, and warranty, Cat generator sets will provide the reliability and durability you expect.

Generator Set Specifications

Minimum Rating 1825 ekW (2281 kVA) 1825 ekW (2281 kVA) Less
Maximum Rating 2500 ekW (3125 kVA) 2500 ekW (3125 kVA) Less
Voltage 480 to 13800 volts 480 to 13800 volts Less
Frequency 60 Hz 60 Hz Less
Speed 1800 RPM 1800 RPM Less

Generator Set Configurations

Emissions/Fuel Strategy U.S. EPA Tier 4 Final Certified U.S. EPA Tier 4 Final Certified Less

Engine Specifications

Engine Model 3516C HD, ATAAC, V-16,4-Stroke Water-Cooled Diesel 3516C HD, ATAAC, V-16,4-Stroke Water-Cooled Diesel Less
Compression Ratio 14.7:1 14.7:1 Less
Aspiration TA TA Less
Governor Type ADEM™A4 ADEM™A4 Less
Fuel System Electronic unit injection Electronic unit injection Less
Bore 6.69 in 170.0 mm Less
Displacement (HD) 4764.73 in3 78.08 L Less
Stroke (HD) 8.46 in 215.0 mm Less

Cat Generator Set Package

Cat generator set packages have been fully prototype tested, and certified torsional vibration analysis reports are available. The packages are designed to accept 100% load in one step, meet the NFPA 110 requirement for loading, and conform to the ISO 8528-5 steady state and transient response requirements.

Cat Diesel Tier 4 Final Certified Engines

The four cycle Cat diesel engine combines consistent performance with excellent fuel economy and transient response that meets or exceeds ISO 8528-5. The engines have been designed and built for a wide range of applications are certified to the US EPA Tier 4 Final emissions requirements. The engines feature a reliable, rugged, and durable design that has been field proven in thousands of applications worldwide from emergency standby installations to continuously operating power plants.

Cat Clean Emissions Module (CEM)

The Tier 4 Final engine has been optimized to work with the Cat CEM. The CEM is a reliable, compact, and lightweight system that gives maximum installation flexibility. It features a diesel oxidation catalyst for particulate matter (PM) and hydrocarbon (HC) control. Selective catalytic reduction (SCR) reduces NOx output and provides integrated sound attenuation. The CEM is controlled by a separate dosing module that has been integrated into the standard generator set controls for complete monitoring, protection and closed loop NOx control. For more information on the CEM, refer to cut sheet LEHE0359.

Cooling System

The cooling system has been designed to operate in standard ambient temperatures up to 50°C (122°F), with optional high ambient radiators available. The factory installed cooling system has been designed and tested to ensure proper generator set cooling, and includes the radiator, fan, belts, and all guarding installed as standard. Contact your Cat Dealer for specific ambient and altitude capabilities


The generators used on Cat packages have been designed and tested to work with the Cat engine. The generators are built with robust Class H insulation and provide industry leading motor starting capability. Random wound generators provide good generator performance in a majority of applications and form wound is available for harsh mechanical and electrical environments.

EMCP Control Panels

The EMCP controller features the reliability and durability you have come to expect from your Cat equipment. The EMCP 4 is a scalable control platform designed to ensure reliable generator set operation, providing extensive information about power output and engine operation. EMCP 4 systems can be further customized to meet your needs through programming and expansion modules.

Seismic Certification

The complete generator set package has been certified to meet the requirements of the IBC and OSHPD requirements. Certification consisted of both mathematical analysis and full shake table testing of the generator set in a simulated earthquake condition.

World Wide Product Support

Cat dealers provide extensive post-sale support including maintenance and repair agreements. Cat dealers have over 1,800 dealer branch stores operating in 200 countries. The Caterpillar S•O•S℠ program cost effectively detects internal engine component condition, even the presence of unwanted fluids and combustion by-products.

3516C Tier 4 Final Standard Equipment

Air Inlet
  • Air Cleaner

  • Package mounted radiator

  • Exhaust flange outlet

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

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

Power Termination
  • Bus Bar

Control Panel
  • EMCP 4 Genset Controller

  • Paint - Caterpillar Yellow except rails and radiators gloss black

3516C Tier 4 Final Optional Equipment

  • Exhaust mufflers

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

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

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

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

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

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

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