Diesel Generator Sets 3512 (60 Hz) with Upgradeable Package 890 - 1250 kW Diesel Generator Set

3512 (60 Hz) with Upgradeable Package

Features At A Glance

Cat Generator Set Package
Cat Diesel Engine
SR5 Alternator
EMCP 4 Control Panel
Cooling System
One Safe Source
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Product Specifications for 3512 (60 Hz) with Upgradeable Package

Generator Set Specifications

Engine Specifications

Generator Set Dimensions

3512 (60 Hz) with Upgradeable Package Standard Equipment

Air Inlet System

  • Air cleaner; single element canister type with service indicator

Control Panel

  • Auto / start / stop control
  • True RMS AC metering, 3-phase, +/-2% accuracy
  • kVAr-hr (total)
  • EMCP 4.2B
  • kVAr (per phase, average & percent)
  • Customer data link (Modbus RTU)
  • KVAR/PF modes, RFI suppression, min/max exciter
  • Overcurrent (50/51)
  • IVR includes reactive droop capability, 3-phase voltage sensing
  • Generator phase sequence
  • 6 programmable digital inputs
  • Engine cool-down timer
  • Limiter and exciter diode monitor
  • Over / under voltage (27/59)
  • Low coolant temperature
  • Generator set packages include Caterpillar's Voltage Regulator (IVR).
  • Accessory module data link
  • Low oil pressure
  • Over / under frequency (81 o/u)
  • Generator mounted - rear facing
  • Reverse reactive power (kVAr) (32RV)
  • Emergency stop
  • Lamp test
  • Overspeed
  • kVA (per phase, average & percent)
  • Operating hours
  • DC volts
  • Low coolant level
  • Programmable protective relaying functions:
  • Frequency (Hz)
  • Amps (per phase & average)
  • Environmental sealed front face
  • Failure to start (overcrank)
  • Power Factor (per phase & average)
  • Controls:
  • kW (per phase, average & percent)
  • Oil pressure (psi, kPa or bar)
  • 24-volt DC operation
  • 4 programmable relay outputs (Form A)
  • Emergency stop pushbutton
  • 2 programmable relay outputs (Form C)
  • RPM
  • Digital indication for:
  • Engine cycle crank
  • Speed adjust
  • Coolant temperature
  • 2 programmable digital outputs
  • Text alarm / event descriptions
  • Serial annunciator module data link
  • Communications:
  • kW-hr (total)
  • Volts (L-L & L-N)
  • Alarm acknowledge
  • Warning / shutdown with common LED indication of shutdowns for:
  • Reverse power (kW) (32)
  • High coolant temperature

Cooling System

  • Coolant level sensors. (Not included with packages without radiator)
  • Coolant drain line with valve
  • Fan and belt guards.
  • JWAC
  • Caterpillar extended life coolant. (Not included with packages without radiator, installed SF44CTS, shipped loose radiators or heat exchangers)
  • Caterpillar extended life coolant. (Not included with packages without radiator, installed SF44CTS, shipped loose radiators or heat exchangers)


  • Dry Exhaust Manifold
  • Flanged faced outlet(s)

Fuel System

  • Fuel priming pump
  • Fuel cooler; not included with packages without radiator
  • Secondary fuel filters
  • Flexible fuel lines - shipped loose

Generators and Attachments

  • Internal excitation or permanent magnet
  • Winding temperature detectors
  • 6 Lead
  • LV:
  • 60 Hz models: NEMA standard hole pattern
  • Busbar connections, top center mounted, top cable entry
  • 3 Phase brushless, salient pole
  • Random wound
  • NEMA Class H insulation
  • Class H temperature rise at 40C ambient (125C prime / 150C standby)
  • KVAR/PF modes
  • Exciter diode monitor
  • Caterpillar's Digital Voltage Regulator (CDVR) includes:
  • RFI suppression
  • Reactive droop capability
  • Min / max exciter limiter
  • Note: 1800 frames are form wound, permanent magnet, with winding temp detectors
  • Generator set packages include: Regulator (CDVR)
  • 3 Phase voltage sensing

Governing System

  • Woodward 2301A isochronous governor

Lube System

  • Fumes disposal
  • Lubricating oil
  • Gear type lube oil pump
  • Oil filter, filler and dipstick
  • Integral lube oil cooler
  • Oil drain lines and valve

Mounting System

  • Rails - engine/generator/radiator mounting
  • Rubber anti-vibration mounts (shipped loose)

Starting / Charging System

  • 24-volt electric starting motor
  • Battery and battery rack w/cables
  • 50 Amp charging alternator
  • Battery disconnect switch


  • Flywheel and Flywheel housing-SAE No. 00
  • SAE Standard Rotation
  • RH Service
  • Paint - Caterpillar yellow with high gloss black rails & radiator

3512 (60 Hz) with Upgradeable Package Optional Equipment

Air Inlet System

  • Single stage air cleaners
  • Dual element air filters

Circuit Breakers

  • 2000, 2500, 3200 and 4000 Amp, 4 pole, IEC rated circuit breakers

Control Panels

  • Remote custom annunicator
  • CAN2 Network equipment
  • Modbus monitoring of packages
  • EMCP 4.3, EMCP 4.4
  • Local discrete I/O package
  • Vandle proof panel door
  • Cat connect
  • Load share module options
  • First local annunciator

Cooling System

  • Coolant
  • Water level gauge
  • Optional radiator arrangements

Exhaust System

  • Exhaust flexible fitting
  • Industrial grade (15 db) mufflers
  • Exhaust elbows
  • Exhaust Y adapters

Generators and Attachments

  • Space heater control
  • Space heater
  • Generator conversion
  • Space heater
  • Space heater control
  • 1500 RPM, 380/400/415volts @ 50 Hz, 3 phase, random wound, permanent magnet, No. of leads = 6, pitch= 0.6667
  • 1500 RPM, 380/400/415volts @ 50 Hz, 3 phase, form wound, permanent magnet, No. of leads = 6, pitch= 0.6667

Lube System

  • Oil level regulator
  • Lube oil
  • Primary fuel systems
  • Prelube sump pump
  • Oil level regulator

Special Tests / Reports

  • Genset tors vibration analysis
  • PGS test report @ 1.0 power factor
  • PKG factory test report
  • Standard genset TVA report
  • Standard engine test charge
  • Fuel consumption test
  • Generator test report
  • Standard engine test charge
  • PGS test report @ 0.8 power factor
  • PGS test report @ 1.0 power factor
  • Torsional vibration analysis
  • Generator test report

Crankcase System

  • Protection systems
  • Ventilation system
  • Protection systems
  • Ventilation system

Batteries and Battery Housing

  • Battery chargers - 10, 20 and 35 amp
  • 24 Volt battery set - Dry
  • Battery chargers - 10, 20 and 35 amp
  • 24 Volt battery set - Dry

Mounting System

  • Spring type vibration isolator
  • Puck style low efficiency lsolators
  • IBC vibration isolators
  • Spring type vibration isolator


  • Pyrometer and thermocouples

Protection System

  • Explosion relief valve

Starting / Charging Systems

  • Oversize battery set
  • Jacket water heater
  • Electric starting motors
  • Jacket water heaters
  • 24 Volt dual electric starting motor
  • Starter covers


  • Barring devices

Power Connection System

  • Breaker power connections
  • EMCP voltage and current sensing groups
  • Center post busbar

Circuit Breaker - LV Packages

  • Electronically operated circuit breakers
  • Right hand power connections

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