3412C (50 HZ) | 680-900 kVA Diesel Generator

Diesel Generator Sets 3412C | 750kVA

Request A Price Find Dealer

Key Specs

Maximum Rating
680 kVA
680 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 | 750kVA

Maximum Rating 680 kVA 680 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 Turbocharged, Air to Air Aftercooled Turbocharged, Air to Air Aftercooled
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 | 750kVA Standard Equipment

Air Inlet System

  • Air cleaner, single element canister type with service indicator

Control Panel

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

Cooling System

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

Exhaust System

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

Fuel System

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

Generator and Attachments

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

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

  • Battery with rack, cables
  • 45 amp Charging alternator
  • 24 volt starting motor
  • Fuel shutoff solenoid

3412C | 750kVA Optional Equipment

Air Inlet System

  • Open element air cleaners
  • Heavy duty air cleaners
  • Dual 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

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

Cooling System

  • Jacket water heaters
  • Radiator duct flange

European Certifications

  • Eurasian Conformity (EAC) mark

Exhaust System

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

Generator and Attachments

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

Lube System

  • Manual sump pump

Mounting System

  • Fuel tank base (1200 ltr)

Special Tests / Reports

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

Starting / Charging

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

Governing System

  • Electronic load share

Product Brochures and More Are Ready to Download!

See how 3412C | 750kVA compares against frequently compared products.

Cat RAM and Condition Monitoring

Observe and manage your fleet from anywhere with Cat RAM, and benefit from real-time monitoring by expert advisors with Condition Monitoring.

Learn More

Maintenance and Repairs

Retain genset value with maintenance, upgrade kits, and repair options that extend lifecycles, optimise performance, and help you control costs.

Learn More


Shop for genuine and Cat Reman parts online, with access to price, inventory, and 24/7 expert support.

Learn More

Media Gallery

3412C Front Left

3412C Front Right

3412C Rear Right

3412C Rear Left

3412C Front Left
3412C Front Right
3412C Rear Right
3412C Rear Left

360 View

Take the interactive virtual product tour to explore the great features and benefits of the 3412C | 750kVA

Start 3412C | 750kVA Tour

Check out current offers for the 3412C | 750kVA

View More Offers

Internet Explorer users may experience issues with certain features of our site.
Please try a current version of an alternate browser (i.e. Google Chrome, Microsoft Edge, Mozilla Firefox) for the full Cat.com experience.