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.

  • Maximum Rating900 kVA
  • Minimum Rating680 kVA
  • Emissions/Fuel StrategyLow Fuel Consumption
  • Voltage380 to 415 Volts
  • Frequency50 Hz
  • Duty CycleStandby, Prime
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Generator Set Specifications
Maximum Rating 900 kVA
Minimum Rating 680 kVA
Emissions/Fuel Strategy Low Fuel Consumption
Voltage 380 to 415 Volts
Frequency 50 Hz
Speed 1500 rpm
Duty Cycle Standby, Prime
Engine Specifications
Engine Model 3412C TA, V-12, 4-Stroke Water-Cooled Diesel
Bore 5.4 in
Stroke 6 in
Displacement 1648.86 in³
Compression Ratio 13:01
Aspiration TA
Fuel System Pump and Lines
Governor Type ADEM™ A5
Generator Set Dimensions
Length - Maximum 162.4 in
Width - Minimum 75 in
Width - Maximum 78.3 in
Height - Maximum 75 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
    Download ↓
  • 3412, 50 Hz, 680-900 kVA Low Fuel Consumption Spec Sheet
    application/pdf
    Download ↓
  • 3412, 50 Hz, 680-900 kVA Low Fuel Consumption Spec Sheet
    application/pdf
    Download ↓
Need installed dimensions with enclosure and tank? See Model Configurations