3512B Diesel Generator Set
At a Glance
Standby Rating
1500/1400 kW
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Prime Power Rating
1360/1275 kW
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Emissions/Fuel Strategy
Low Fuel, Low Emissions
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Voltage
380 to 480 Volts
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Overview
The 3512B generator set has been developed for a wide range of applications, from emergency standby installations such as healthcare and datacenters to continuously powering remote installations. The packages can be optimized for performance that matters to you with either low emissions or low fuel consumption versions available. Backed by the worldwide network of Cat dealers ready to support your operation with technical support, service, parts, and warranty, Cat generator sets will provide the reliability and durability you expect.
Generator Set Specifications
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Standby Rating |
1500/1400 kW |
Prime Power Rating |
1360/1275 kW |
Emissions/Fuel Strategy |
Low Fuel, Low Emissions |
Voltage |
380 to 480 Volts |
Frequency |
60 Hz |
Speed |
1800 rpm |
Duty Cycle |
Standby, Mission Critical, Prime, Continuous |
Maximum Rating |
1500 kW |
Minimum Rating |
1230 kW |
Engine Specifications
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Engine Model |
3512B TA, V-12, 4-Stroke Water-Cooled Diesel |
Bore |
6.69in |
Stroke |
7.48in |
Displacement |
51.8in³ |
Compression Ratio |
14.0:1 Std 15.5:1 HD |
Aspiration |
TA |
Fuel System |
Electronic Unit Injection |
Governor Type |
ADEM™ A3 |
Generator Set Dimensions
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Length - Maximum |
207.8in |
Width - Maximum |
90in |
Height - Maximum |
94.9in |
Dry Weight - Genset (minimum) |
24297lb |
Dry Weight - Genset (maximum) |
24959lb |
Standard Equipment:
Air Inlet System
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Air cleaner; single element canister type with service indicator
Control System
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True RMS AC metering, 3-phase, +/-2% accuracy
Control Panel
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DC volts
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24 Volt DC operation
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kVA (per phase, average & percent)
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Engine cool-down timer
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Coolant temperature
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kW-hr (total)
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Amps (per phase & average)
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Over/under frequency (81 o/u)
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Text alarm/event descriptions
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Accessory module data link
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Alarm acknowledge
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Warning/shutdown with common LED indication of shutdowns for:
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Auto/start/stop control
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Controls:
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Failure to start (overcrank)
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Generator mounted - rear facing
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kVAr (per phase, average & percent)
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kVAr-hr (total)
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Reverse reactive power (kVAr) (32RV)
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Volts (L-L & L-N)
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Serial annunciator module data link
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4 programmable relay outputs (Form A)
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Lamp test
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Operating hours
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Overcurrent (50/51)
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kW (per phase, average & percent)
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Communications:
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6 programmable digital inputs
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RPM
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Engine cycle crank
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2 Programmable relay outputs (Form C)
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IVR includes reactive droop capability, 3-phase voltage sensing
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High coolant temperature
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Digital indication for:
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Environmental sealed front face
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Power factor (per phase & average)
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Speed adjust
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Emergency stop pushbutton
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Limiter and exciter diode monitor
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Low oil pressure
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EMCP 4.2B
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Low coolant level
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2 Programmable digital outputs
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KVAR/PF modes, RFI suppression, min/max exciter
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Oil pressure (psi, kPa or bar)
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Customer data link (Modbus RTU)
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True RMS AC metering, 3-phase, +/-2% accuracy
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Overspeed
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Frequency (Hz)
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Emergency stop
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Generator set packages include Caterpillar's voltage regulator (IVR)
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Reverse power (kW) (32)
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Low coolant temperature
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Generator phase sequence
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Programmable protective relaying functions:
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Over/under voltage (27/59)
Cooling System
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Caterpillar extended life coolant. (Not included with packages without radiator, installed SF44CTS, shipped loose radiators or heat exchangers)
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Fan and belt guards
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JWAC
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Coolant drain line with valve
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Coolant level sensors (Not included with packages without radiator)
Exhaust
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Dry exhaust manifold
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Flanged faced outlet(s)
Fuel System
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Fuel cooler; not included with packages without radiator
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Fuel priming pump
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Secondary fuel filters
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Flexible fuel lines - shipped loose
Generators And Attachments
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NEMA Class H insulation
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Winding temperature detectors
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Internal excitation (IE) or Permanent magnet excitation (PMG)
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LV
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6 Lead
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60 Hz models: NEMA standard hole pattern
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Class H temperature rise at 40C ambient (125C prime / 150C standby)
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3 Phase brushless, Salient pole
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Busbar connections, top center mounted, top cable entry
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Random wound
Governing System
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Woodward 2301A isochronous governor
Lube System
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Oil drain lines and valve
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Lubricating oil
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Integral lube Oil cooler
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Fumes disposal
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Gear type lube oil pump
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Oil filter, filler and dipstick
Mounting System
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Rails - engine/generator/radiator mounting
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Rubber anti-vibration mounts - shipped loose
Starting / Charging System
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Battery disconnect switch
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Battery and battery rack w/cables
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24-Volt electric starting motor
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50 Amp Charging alternator
General
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SAE standard rotation
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Paint - Caterpillar yellow with high gloss black rails & radiator
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Flywheel and Flywheel housing-SAE No. 00
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RH service
Optional Equipment:
Air Inlet System
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Air cleaner: Includes installed single element Cat filter and service indicator
Dual element air filters
Single stage air cleaners
Control Panels
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Cat connect (must choose one)
RTD module - may select one
Modbus monitoring of packages
First local annunicator
EMCP 4.3, EMCP 4.4
CAN2 network equipment
Remote custom annunciator
Locale discrete I / O package
Vandle proof panel door
Cooling System
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Optional radiator arrangements
Water level gauge
Coolant
Control System
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Generator temperature monitoring
Exhaust System
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Exhaust Y Adapters
Exhaust elbows
Mufflers
Flexible fittings
Exhaust flange and expanders
Generators And Attachments
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Space heater control
Generator conversion
Space heater
Instrumentation
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Pyrometer and thermocouples
Lube System
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Oil level regulator
Prelube manual sump pump
Electric prelube sump pump
Lube oil
Special Tests / Reports
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PGS Test report @ 0.8 power factor
Generator test report
Standard generator TVA report
PGS Test report @ 0.8 power factor
Custom generator TVA report
Torsional vibration analysis
PGS Test report @ 1.0 power factor
Standard engine test charge
Generator test report
Standard engine test charge
PGS Test report @ 1.0 power factor
Generator fuel consumption test
Crankcase System
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Ventilation system
Protection systems
Batteries And Battery Housing
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24 Volt battery set - Dry
Battery chargers - 10, 20 and 35 amp
Power Connection System
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EMCP voltage and current sensing groups
Breaker power connections
Center post busbars
Circuit Breaker - Lv Packages
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Right hand power connections
Electronically operated circuit breakers
Mounting System
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Low efficiency isolators
Spring type vibration isolators
Spring type vibration isolators
Low efficiency isolators puck
Power Connections
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Low voltage - Package mounted circuit breakers
Low voltage - 1400 and 1600 Frame generators
Electrically operated circuit breakers
Low voltage - Power connection options
Starting / Charging System
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Jacket water heater wiring groups
35 Amp Battery charger
20 Amp Battery charger
Jacket water heaters
10 Amp Battery charger
Electric starting motors
Starter cover
Batteries, racks and cables
Starting / Charging Systems
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Electric starting motors
Starter cover
Jacket water heater
Extended Service Coverage
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Gold - 36,48, 60, 120 month coverage
Cat branded commercial power system
Silver - 36 ,48, 60, 120 month coverage
Platinum - 24, 36, 48, 60, 120 month coverage