3512 (60 Hz) with Upgradeable Package

Bore
6.69 in / 170 mm
Stroke
7.48 in / 190 mm
Displacement
3161.03 in³ / 51.8 l

Producing reliable power from 890 to 1250 eKW 60 Hz, our 3512 diesel generator sets are made to meet your mission critical, continuous, standby and prime applications. We've designed each to ISO 8528-5 transient response requirements and to accept 100% rated load in one step. Generator sets are optimized for low fuel consumption.

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Electric Power Ratings Guide 3512, 60 Hz, 1250 ekW Standby/MC, 1135 ekW Prime, 1010 ekW Cont., Low Fuel Consumption Spec Sheet 3512, 60 Hz, 1135 kVA, Prime-DCP, Low Fuel Consumption Spec Sheet
Generator Set Specifications
Standby Rating 1250/1100 ekW
Prime Power Rating 1135/1000 ekW
Emissions/Fuel Strategy Low Fuel Consumption
Voltage 380 to 480 Volts
Frequency 60 Hz
Speed 1800 rpm
Duty Cycle Standby, Mission Critical, Prime, Continuous
Maximum Rating 1250 ekW
Minimum Rating 890 ekW
Engine Specifications
Engine Model 3512A, V-12, 4-Stroke Water-Cooled Diesel
Bore 6.69 in / 170 mm
Stroke 7.48 in / 190 mm
Displacement 3161.03 in³ / 51.8 l
Compression Ratio 13.5:1
Aspiration TA
Fuel System MUI
Governor Type Woodward
Generator Set Dimensions
Length - Maximum 203.5 in / 5169 mm
Width - Maximum 79.3 in / 2015 mm
Height - Maximum 92 in / 2336 mm
Dry Weight - Genset (minimum) 22099 lb / 10024 kg
Dry Weight - Genset (maximum) 22540 lb / 10224 kg

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)
  • Exhaust
    • 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 (IE) or Permanent magnet excitation (PMG)
    • 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 excitation (PMG), 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
  • General
    • Flywheel and Flywheel housing-SAE No. 00
    • SAE standard rotation
    • RH service
    • Paint - Caterpillar yellow with high gloss black rails & radiator

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 fittings
    • 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 excitation (PMG), No. of leads = 6, pitch= 0.6667
    • 1500 RPM, 380/400/415volts @ 50 Hz, 3 phase, Form wound, Permanent magnet excitation (PMG), 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
    • Gensets 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 isolators
    • Puck style low efficiency lsolators
    • IBC vibration isolators
    • Spring type vibration isolators
  • Instrumentation
    • Pyrometer and thermocouples
  • Protection System
    • Explosion relief valves
  • Starting / Charging Systems
    • Oversize battery set
    • Jacket water heater
    • Electric starting motors
    • Jacket water heaters
    • 24 Volt dual electric starting motor
    • Starter cover
  • General
    • Barring devices
  • Power Connection System
    • Breaker power connections
    • EMCP voltage and current sensing groups
    • Center post busbars
  • Circuit breaker - LV Packages
    • Electronically operated circuit breakers
    • Right hand power connections

Switchgear and Paralleling Controls

Caterpillar offers switchgear suitable for applications ranging from single standby/load management to multi-unit utility paralleling installations.

Model Configuration Operating Temperature Standard Widths
Cat Switchgear IP4X 35 °C / 40 °C @ 1 hr, option for 0…50 °C (32…122 °F) 600 mm for ABB Emax2 E2 1600 - 2500A. 750 mm for ABB Emax2 E4 3200 - 4000A. 1200 mm for ABB Emax2 E6 4000 - 6300A.
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