3412C Front Left
3412C Front Right
3412C Rear Right
3412C Rear Left
Diesel generator sets

3412C (50 Hz)

Caterpillar is leading the power generation marketplace with Power Solutions engineered to deliver unmatched flexibility, expandability, reliability, and cost-effectiveness.

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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

SR500 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

Certifications

  • EU Declaration of Conformity
  • EU Declaration of Incorporation
  • Eurasian Conformity (EAC)

One Safe Source

  • Components used in the generator set are selected based on seamless design integration to provide the optimum 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

Accepts 100% block load in 1 step

Can handle large loads without affecting operations

Utilizes the latest ADEM 5 Controllers

Provides precise control over entire range of loads

Upgradeable controls. Allows for easy retrofit of EMCP 4.3/4.4 Controllers

Generator Set Specifications
Standby Rating750/800/900 kVA
Prime Power Rating680/725/810 kVA
Emissions/Fuel StrategyLow BSFC
Voltage380 to 415 Volts
Frequency50 Hz
Speed1500 rpm
Duty CycleStandby, Prime
Engine Specifications
Engine Model3412C TA, V-12, 4-Stroke Water-Cooled Diesel
Bore5.4 in
Stroke6 in
Displacement1648.86 in³
Compression Ratio13:01
AspirationTA
Fuel SystemPump and Lines
Governor TypeADEM™ A5
Generator Set Dimensions
Length - Maximum162.4 in
Width - Minimum75 in
Width - Maximum78.3 in
Height - Maximum75 in
Dry Weight - Genset (minimum)12039 lb
Dry Weight - Genset (maximum)13030 lb

Air Inlet System

  • Air cleaner, single element canister type with service indicator

Control Panel

  • EMCP 4.2B
  • Customer data link (Modbus RTU)
  • 2 Programmable relay outputs (Form C)
  • Features include:
  • Voltage adjust
  • Failure to start (overcrank)
  • Volts (L-L & L-N)
  • Reverse power (kW) (32)
  • Accessory module data link
  • Over/under voltage (27 / 59)
  • Speed adjust
  • Low coolant temperature
  • Oil pressure (psi, kPa or bar)
  • Environmental sealed front face
  • Generator temperature monitoring module
  • DC volts
  • Serial annunciator module data link
  • Reverse reactive power (kVAr) (32RV)
  • Amps (per phase & average)
  • High coolant temperature
  • 24 Volt DC operation
  • Communications
  • Power factor (per phase & average)
  • Compatible with the following optional modules:
  • Low coolant level
  • Text alarm/event descriptions
  • Digital I/O module
  • 6 programmable digital inputs
  • Low oil pressure
  • Remote Serial annunciator
  • Engine cycle crank
  • Local annunciator
  • Digital indication for:
  • Over/under frequency (81 o/u)
  • Generator phase sequence
  • Emergency stop
  • kVAr (per phase, average & percent)
  • Run/auto/ stop/control
  • Operating hours
  • kVA (per phase, average & percent)
  • Warning/shutdown with common LED indication of shutdowns for:
  • Emergency stop pushbutton
  • Frequency (Hz)
  • coolant temperature
  • Overspeed
  • 4 programmable relay outputs (Form A)
  • kW-hr (total)
  • 2 Programmable digital outputs
  • Remote CAN annunciator
  • Overcurrent (50 / 51)
  • kW (per phase, average & percent)
  • RPM
  • Programmable protective relaying functions:

Cooling System

  • Radiator with guard (Sized for 50 degrees C)
  • Coolant level shutdown
  • Coolant drain line with valve, piped to edge of base
  • Fan and belt guards
  • Caterpillar extended life coolant

Exhaust System

  • Stainless steel exhaust flex with ANSI style outlet flange, gasket, bolts and mating weld flange, shipped loose

Fuel System

  • Primary and Secondary fuel filters
  • Fuel priming pump
  • Flexible fuel lines terminated on base
  • Water seperator

Generator and Attachments

  • 2:1 Volts/Hz
  • Busbar termination
  • 3-phase sensing
  • Class H insulation
  • Reactive droop
  • VR6 voltage regulator
  • SR4B self excited
  • 12 Leads
  • Class F temperature rise

Governing System

  • Cat electronic governor

Lube System

  • Oil drain line with valve, piped to edge of base
  • Lubricating oil
  • Oil filter
  • Fumes disposal, piped to front of radiator

Mounting System

  • Base, formed steel with linear vibration isolators between base and engine-generator

Starting / Charging System

  • 45 amp Charging alternator
  • Battery with rack, cables
  • Fuel shutoff solenoid
  • 24 volt starting motor
  • Electric Power Ratings Guide
    application/pdf
  • 3412, 50 Hz, 680-900 kVA Low Fuel Consumption Spec Sheet
    application/pdf
  • 3412, 50 Hz, 680-900 kVA Low Fuel Consumption Spec Sheet
    application/pdf

Need installed dimensions with enclosure and tank? See Model Configurations