Diesel Generator Sets 3512B (60 Hz) 1230 - 1500 ekW Diesel Generator Set

3512B (60 Hz)

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 3512B (60 Hz)

Generator Set Specifications

Engine Specifications

Generator Set Dimensions

3512B (60 Hz) Standard Equipment

Air Inlet System

  • Air cleaner; single element canister type with service indicator

Exhaust System

  • Exhaust flange outlet
  • Dry Exhaust Manifold
  • Flanged faced outlet(s)


  • IP23 Protection
  • Matched to the performance and output characteristics of Cat engines

Power Termination

  • Bus Bar

Control Panel

  • EMCP 4 Genset Controller

Control System

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

Cooling System

  • Package mounted radiator
  • Radiator fan and fan drive
  • Fan and belt guards
  • Coolant drain line with valve
  • Caterpillar Extended Life Coolant (Not included with packages without radiator, installed SF44CTS
  • Coolant level sensors (Not included with packages without radiator)
  • SCAC

Fuel System

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

Generators and Attachments

  • Low voltage:
  • Random wound
  • 6 Leads
  • NEMA standard hole pattern
  • High Voltage
  • Bus bar connections, right side extension box, bottom cable entry
  • NEMA Class H insulation, Class H temperature rise at 40C ambient (125C prime / 150C standby)
  • Permanent magnet
  • NEMA standard hole pattern
  • Medium voltage:
  • Bus bar connections, top center mounted, top cable entry
  • NEMA Class H insulation, Class H temperature rise at 40C ambient (125C prime / 150C standby)
  • Winding temperature detectors
  • Form wound
  • 3 Phase brushless, salient pole
  • Class H insulation, Class F temperature rise at 40C ambient (105C prime / 130C standby)
  • Internal excitation

Governing System



  • English

Lube System

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

Mounting System

  • Rubber anti-vibration mounts (shipped loose)

Starting / Charging System

  • Battery disconnect switch
  • Battery and battery rack w/cables
  • 45 Amp charging alternator
  • 24 Volt electric starting motor


  • Paint: Caterpillar yellow with high gloss black rails & radiator
  • Flywheel and Flywheel housing-SAE No. 00
  • Right hand servicing
  • SAE Standard Rotation

3512B (60 Hz) Optional Equipment

Control Panels

  • Remote monitoring software
  • Digital I/O module
  • EMCP 4.3, EMCP 4.4
  • Load share module
  • Generator temperature monitoring & protection

Exhaust System

  • Exhaust mufflers
  • Flanges
  • Elbows
  • Flange and exhaust expanders
  • Mufflers
  • Y Adapters
  • Flexible fittings


  • Oversize and premium generators
  • Permanent magnet excitation (PMG)
  • Internal excitation (IE)
  • Anti-condensation heater

Air Inlet System

  • Heavy duty air cleaner
  • Single element filter

Power Termination

  • Circuit breakers, UL listed
  • Circuit breakers, IEC compliant

Cooling System

  • Standard installed radiators
  • Optional installed radicators
  • Coolant
  • Water level switch gauges

Fuel System

  • Primary fuel filter


  • UL 2200 package
  • EEC Declaration of Conformity
  • Seismic Certification per applicable building codes: IBC 2000, IBC 2003, IBC 2006, IBC 2009, CBC 2007
  • CSA Certification
  • Enclosures: sound attenuated, weather protective
  • Automatic transfer switches (ATS)
  • Integral & sub-base fuel tanks
  • The following options are based on regional and product configuration:
  • US aid emblem
  • Integral & sub-base UL listed dual wall fuel tanks
  • EU Certificate of Conformance (CE)

Generators and Attachments

  • 1400, 1600, 2700 Frames
  • Generator conversion from IE to PM
  • Space heater
  • RW, IE, 6 leads, Pitch 0.6667
  • Low Voltage: 380,440 / 480 Volts, 3 Phase, 1800 rpm
  • Differential current transformers (DCT) 15 kV class
  • Generator air cleaner
  • Differential current transformers (DCT) 8.7 kV class


  • IBC isolators
  • Rubber anti-vibration mounts
  • Spring-type vibration isolator


  • Air starting motor with control and silencer
  • Heavy-duty starting system
  • Charging alternator
  • Oversize batteries
  • Battery chargers
  • Jacket water heater


  • Wiring GP W/O cyl sensors
  • Pyrometer and thermocouples

Lube System

  • Lubrication oil in standard sump
  • Oil drains
  • Prelube pumps
  • Oil level regulator

Crankcase Protection

  • Explosion relief valve
  • No crankcase explosion relief valve
  • Crankcase ventilation system
  • No explosion relief valves

Mounting System

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

Power Connections

  • 2000, 2500 Amp, 4 Pole, IEC Rated Circuit Breakers
  • Cable entry - Right side
  • Grounding groups
  • Left side power connections
  • 1600 ,2000, 2500, 3000, 4000 Amp, 3 Pole, UL-100% rated circuit breakers
  • 2000, 2500,3200 Amp, 3 Pole, IEC Rated Circuit Breakers
  • Rear power connections
  • Neutral ground connections
  • 6 Leads, 6 terminal option
  • Right side power connections
  • Center post buss bar

Special Tests / Reports

  • Generator test report
  • PGS test report @ 0.8 power factor
  • Standard engine test charge
  • CSA certification
  • Torsional vibration analysis
  • Generator fuel consumption test
  • PGS test report @ 1.0 power factor
  • IBC seismic certification
  • Fuel consumption test

Starting / Charging System

  • Air pressure regulator
  • Batteries, racks and cables:
  • Air starting motor
  • 35 Amp battery charger
  • 24 Volt battery set - Dry
  • Starter covers
  • 10 Amp battery charger
  • Engine barring device
  • Jacket water heaters
  • Electric starting motors

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