FEATURES
FUEL/EMISSIONS STRATEGY
DESIGN CRITERIA
- The generator set accepts 100% rated load in one step per NFPA 110 and meets ISO 8528-5 transient
 
FULL RANGE OF ATTACHMENTS
- Wide range of bolt-on system expansion attachments, factory designed and tested
 - Flexible packaging options for easy and cost effective installation
 
WORLDWIDE PRODUCT SUPPORT
- Cat dealers provide extensive post sale support including maintenance and repair agreements
 - Cat dealers have over 1,800 dealer branch stores operating in 200 countries
 - The Cat® S•O•SSM program cost effectively detects internal engine component condition, even the presence of unwanted fluids and combustion by-products
 
CAT® 3512 TA DIESEL ENGINE
- Reliable, rugged, durable design
 - Field-proven in thousands of applications
 - Four-stroke-cycle diesel engine combines consistent performance and excellent fuel economy with minimum weight
 
CAT GENERATOR
- Matched to the performance and output characteristics of Cat engines
 - Industry leading mechanical and electrical design
 - Industry leading motor starting capabilities
 - High Efficiency
 
CAT EMCP 4 CONTROL PANELS
- Simple user friendly interface and navigation
 - Scalable system to meet a wide range of customer needs
 - Integrated Control System and Communications Gateway
 
FACTORY INSTALLED STANDARD & OPTIONAL EQUIPMENT 
System  | Standard  | Optional  | 
Air Inlet  | •  Single element canister type air cleaner •  Service indicator  |    | 
Cooling  | •  Radiator with guard •  Coolant drain line with valve •  Fan and belt guards •  Cat® Extended Life Coolant  | [ ] Radiator duct flange [ ] Jacket water heater  | 
Exhaust  | •  Dry exhaust manifold •  Flanged faced outlets  | [ ] Mufflers and Silencers [ ] Stainless steel exhaust flex fittings [ ] Elbows, flanges, expanders & Y adapters  | 
Fuel  | •  Secondary fuel filters •  Fuel priming pump •  Flexible fuel lines •  Fuel cooler*  | [ ] Water separator [ ] Duplex fuel filter  | 
Generator  | •  Cat digital voltage regulator (CDVR) with kVAR/PF control, 3-phase sensing  | [ ] Oversize & premium generators [ ] Winding temperature detectors [ ] Bearing temperature detectors  [ ] Anti-condensation heaters  | 
Power Termination  | •  Bus bar (NEMA or IEC mechanical lug holes) •  Top cable entry  | [ ] Circuit breakers, UL listed, 3 pole with shunt trip,100% rated, manual or electrically operated [ ] Circuit breakers, IEC compliant, 3 or 4 pole with shunt trip, manual or electrically operated [ ] Bottom cable entry [ ] Power terminations can be located on the right, left and/or rear as an option.  | 
Governor  | •  Woodward 2301A isochronous  | [ ] Electronic load sharing governor  | 
Control Panels  | •  EMCP 4.2  | [ ] Local & remote annunciator modules [ ] Digital I/O Module [ ] Generator temperature monitoring & protection [ ] Remote monitoring software  | 
Lube  | •  Lubricating oil and filter •  Oil drain line with valves •  Fumes disposal •  Gear type lube oil pump  | [ ] Oil level regulator [ ] Deep sump oil pan [ ] Electric & air prelube pumps [ ] Manual prelube with sump pump [ ] Duplex oil filter  | 
Mounting  | •  Rails  -  Engine  /  generator  /  radiator  mounting •  Rubber anti-vibration mounts (shipped loose)  | [ ] Isolator removal [ ] Spring-type vibration isolator (shipped loose) [ ] IBC Isolators  | 
Starting/Charging  | •  24 volt starting motor(s) •  Batteries with rack and cables •  Battery disconnect switch  | [ ] Battery chargers [ ] Charging alternator [ ] Oversize batteries   [ ] Ether starting aid [ ] Heavy duty starting motors [ ] Barring device (manual)  | 
General  | •  Right-hand service •  Paint - Caterpillar Yellow except rails and radiators are gloss black •  SAE standard rotation •  Flywheel and flywheel housing - SAE No. 00  | [ ] UL 2200 [ ] CSA certification [ ] CE Certificate of Conformance  | 
SPECIFICATIONS
 CAT GENERATOR
Cat Generator
Frame size.......................................................................... 1445
Excitation................................................ Permanent  
Magnet Pitch.............................................................................. 0.6667
Number of poles...................................................................... 4
Number of bearings...................................... Single bearing
Number of Leads.              006
Insulation....................... UL 1446 Recognized Class H with tropicalization and antiabrasion
- Consult your Caterpillar dealer for available voltages
IP Rating........................................................................... IP23
Alignment.............................................................. Pilot  Shaft
Overspeed capability.......................................................... 150
Wave form Deviation (Line to Line)............................ 002.00
Voltage regulator.............. 3 Phase sensing with selectible volts/Hz
Voltage regulation............Less than +/- 1/2% (steady state)
Less than +/- 1% (no load to full load)
CAT DIESEL ENGINE
3512 TA, V-12, 4-Stroke Water-cooled Diesel Bore........................................................ 170.00 mm (6.69 in)
Stroke..................................................... 190.00 mm (7.48 in)
Displacement.........................................51.80 L (3161.03 in3)
Compression Ratio......................................................... 13.5:1
Aspiration...........................................................................  TA
Fuel System........................................... Direct unit injection
Governor  Type..................................................... Woodward
 
CAT EMCP 4 SERIES CONTROLS
EMCP 4 controls including:
- Run / Auto / Stop Control
 - Speed and Voltage Adjust
 - Engine Cycle Crank
 - 24-volt DC operation
 - Environmental sealed front face
 - Text alarm/event descriptions Digital indication for:
 - RPM
 - DC volts
 - Operating hours
 - Oil pressure (psi, kPa or bar)
 - Coolant temperature
 - Volts (L-L & L-N), frequency (Hz)
 - Amps (per phase & average)
 - ekW, kVA, kVAR, kW-hr, %kW, PF Warning/shutdown with common LED indication of:
 - Low oil pressure
 - High coolant temperature
 - Overspeed
 - Emergency stop
 - Failure to start (overcrank)
 - Low coolant temperature
 - Low coolant level
 
Programmable protective relaying functions:
- Generator phase sequence
 - Over/Under voltage (27/59)
 - Over/Under Frequency (81 o/u)
 - Reverse Power (kW) (32)
 - Reverse reactive power (kVAr) (32RV)
 - Overcurrent (50/51) Communications:
 - Six digital inputs (4.2 only)
 - Four relay outputs (Form A)
 - Two relay outputs (Form C)
 - Two digital outputs
 - Customer data link (Modbus RTU)
 - Accessory module data link
 - Serial annunciator module data link
 - Emergency stop pushbutton Compatible with the following:
 - Digital I/O module
 - Local Annunciator
 - Remote CAN annunciator
 - Remote serial annunciator
 
TECHNICAL DATA 
Open Generator Set - - 1500 rpm/50 Hz/400 Volts  | DM8222  | 
Low Fuel Consumption  |    | 
Generator Set Package Performance Genset Power rating @ 0.8 pf Genset Power rating with fan  |   1275 kVA 1020 ekW  | 
Fuel Consumption 100% load with fan 75% load with fan 50% load with fan  |   264.6 L/hr 203.2 L/hr 140.8 L/hr  |   69.9 Gal/hr 53.7 Gal/hr 37.2 Gal/hr  | 
Cooling System1  |   0.12 kPa  |   0.48 in. water  | 
Air flow restriction (system)  | 
Air flow (max @ rated speed for radiator arrangement)  | 1246 m³/min  | 44002 cfm  | 
Engine Coolant capacity with radiator/exp. tank  | 286.8 L  | 75.8 gal  | 
Engine coolant capacity  | 156.8 L  | 41.4 gal  | 
Radiator coolant capacity  | 130.0 L  | 34.3 gal  | 
Inlet Air Combustion air inlet flow rate  |   92.0 m³/min  |   3249.0 cfm  | 
Exhaust System Exhaust stack gas temperature Exhaust gas flow rate Exhaust flange size (internal diameter) Exhaust system backpressure (maximum allowable)  |   449.2 º C 231.8 m³/min 203.2 mm 6.7 kPa  |   840.6 º F 8185.9 cfm 8.0 in 26.9 in. water  | 
Heat Rejection Heat rejection to coolant (total) Heat rejection to exhaust (total) Heat rejection to aftercooler Heat rejection to atmosphere from engine Heat rejection to atmosphere from generator  |   616 kW 1016 kW 159 kW 115 kW 49.2 kW  |   35032 Btu/min 57780 Btu/min 9042 Btu/min 6540 Btu/min 2798.0 Btu/min  | 
Alternator2 Motor starting capability @ 30% voltage dip Frame Temperature Rise  |   3087 skVA 1445 125 º C  |       225 º F  | 
Lube System Sump refill with filter  |   310.4 L  |   82.0 gal  | 
1  For ambient and altitude capabilities consult your Cat dealer. Air flow restriction (system) is added to existing restriction from factory.
2  UL 2200 Listed packages may have oversized generators with a different temperature rise and motor starting characteristics. Generator temperature rise is based on a 40ºC ambient per NEMA MG1-32.