Diesel Generator Sets 3412C (50 Hz)

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Key Specs

Maximum Rating
900 kVA
900 kVA
Minimum Rating
680 kVA
680 kVA
Emissions/Fuel Strategy
Low Fuel Consumption
Low Fuel Consumption


680 - 900 kVA Diesel Generator Set

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


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

Product Specifications for 3412C (50 Hz)

Maximum Rating 900 kVA 900 kVA
Minimum Rating 680 kVA 680 kVA
Emissions/Fuel Strategy Low Fuel Consumption Low Fuel Consumption
Voltage 380 to 415 Volts 380 to 415 Volts
Frequency 50 Hz 50 Hz
Speed 1500 rpm 1500 rpm
Duty Cycle Standby, Prime Standby, Prime
Engine Model 3412C TA, V-12, 4-Stroke Water-Cooled Diesel 3412C TA, V-12, 4-Stroke Water-Cooled Diesel
Bore 5.4 in 137.2 mm
Stroke 6 in 152.4 mm
Displacement 1648.86 in³ 27.02 l
Compression Ratio 13:01 13:01
Aspiration TA TA
Fuel System Pump and Lines Pump and Lines
Governor Type ADEM™ A5 ADEM™ A5
Length - Maximum 162.4 in 4125 mm
Width - Minimum 75 in 1906 mm
Width - Maximum 78.3 in 1989 mm
Height - Maximum 75 in 1906 mm
Dry Weight - Genset (minimum) 12039 lb 5461 kg
Dry Weight - Genset (maximum) 13030 lb 5910 kg

3412C (50 Hz) Standard Equipment

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:
  • 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
  • Bus bar termination
  • 3-phase sensing
  • Class H insulation
  • Reactive droop
  • VR6 Voltage Regulator
  • SR4B self excited
  • 12 Leads
  • Class F temerature 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

3412C (50 Hz) Optional Equipment

Air Inlet System

  • Heavy duty air cleaners
  • Duel element air cleaners
  • Open element air cleaners

Circuit breakers

  • 1600 Amp, 3 pole, Non-UL, 100% rated, 24 volt DC shunt trip
  • 1250, 1600 Amp, 3 pole, IEC 100% rated, 24 volt DC shunt trip

Control Panel

  • Generator temperature monitoring package
  • EMCP 4.4
  • First local annunicators
  • Vandal proof panel door
  • Remote custom annunicators
  • EMCP 4.3
  • Local discrete I/O package
  • Common alarm / shutdown relay
  • Ground fault relay
  • Generator running VFC

Cooling System

  • Radiator duct flange
  • Jacket water heaters

European Certifications

  • Eurasian conformity (EAC) mark

Exhaust System

  • Through wall installation kit
  • Mufflers
  • Manifold and turbocharger guard
  • Elbow kit

Generator and Attachments

  • Permanent magnet excitation
  • Space heater
  • Digital voltage regulator
  • Oversize and premium generators

Lube System

  • Manual sump pump

Mounting System

  • Fuel tank base (1200 ltr)

Special Tests / Reports

  • PGS test report @ 0.8 power factor
  • PGS test report @ 1.0 power factor

Starting / Charging

  • Oversize batteries
  • Battery chargers
  • Battery disconnect switch
  • Heavy-duty starting system

Governing System

  • Electronic load share

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