Marine
Generator 3406C
Set
320 ekW (400 kVA) 60 Hz @ 1800 rpm
SPECIFICATIONS
I-6, 4-Stroke-Cycle-Diesel
Emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . IMO compliant
Displacement . . . . . . . . . . . . . . . . . . . . 14.6 L (893 cu. in.)
Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137 mm (5.4 in.)
Stroke. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165 mm (6.5 in.)
Aspiration . . . . . . . . . . . . . . . . Turbocharged-Aftercooled
Governor . . . . . . . . . . . . . . . . . Hydra-mechanical or PSG
Engine Weight, Net Dry (approx). . . . 2404 kg (5300 lb)
Capacity for Liquids
Cooling System (engine only) . . . . . 34 L (9 U.S. gal)
Lube Oil System (refill). . . . . . . . . . . . 34 L (9 U.S. gal)
Shown with Oil Change Interval . . . . . . . . . . . . . . . . . . . . . . . . . . 250 hr
Accessory Equipment Caterpillar DEO 10W30 or 15W40
Rotation (from flywheel end) . . . . . . . Counterclockwise
STANDARD EQUIPMENT ACCESSORY EQUIPMENT
Air Inlet System Air Starting Motor
Corrosion resistant aftercooler core, regular duty Alarm Contactor — Oil Pressure, Water Temperature
panel type air cleaner 24V 35 Amp, 60 Amp Alternator
Auxiliary Drive Pulley
Cooling System Auxiliary Water Pump
Gear driven self priming auxiliary sea water pump Crankshaft Pulley
with rotary rubber impeller, gear driven centrifugal Deep Sump Oil Pan
jacket water pump, oil cooler, expansion tank, Digital Tachometer
thermostats and housing Double Wall Fuel Lines and Drain
Dry Charge Coolant Conditioner
Exhaust System Duplex Fuel Filters
Watercooled manifold and turbocharger; dry elbow 12V, 24V, 32V Electric Gauges
and flange, 152 mm (6 in.) Electric Shutoffs — Oil Pressure, Water Temperature,
Flywheel and Flywheel Housing Overspeed
24V Electric Starting Motor
SAE No. 1 (113 teeth) Ether Starting Aid
Fuel System Exhaust Elbow, Pipe, Flexible Fittings
LH fuel priming pump, fuel transfer pump, LH fuel Extension Terminal Box
filter, flexible fuel lines 24V Governor Control Motor and Switch
Heat Exchanger and Expansion Tank
Generator and Attachments 4 - or 8 - Hole Instrument Panel
Brushless PM excited SR4 generator, VR3 voltage Load Sharing or Speed Control Governor
regulator, space heater Low Voltage Connections
Magnetic Pickup
Instruments Manual Voltage Control
LH instrument panel with oil pressure, water Mechanical Shutoffs — Oil Pressure, Water Temperature
temperature, and fuel pressure gauges; service meter Mechanical Tachometer Drive
Lube System Paralleling Kit
Primary Fuel Filter/Water Separator
Crankcase breather, RH oil filter and oil level gauge, RFI Filter
oil filler in valve cover Solenoid Shutoff — 24V ETR, ETS
Mounting System Spare Parts Kit
Rails, 85 mm (3.3 in.) height; linear vibration Terminal Strip Connections
isolators between base and engine-generator
PERFORMANCE DATA
General
Turbocharged-Aftercooled
Vibration damper, Caterpillar yellow paint, lifting
eyes DM6107-00
320 ekW (.8 pf) 400 kVA
% load ekW Lph gph
100 320 85.5 22.6
75 240 63.5 16.8
50 160 44.2 11.7
25 80 26.0 6.9
3406C MARINE GENERATOR SET — 320 ekW (400 kVA)
Right Side Front Footprint
03
02
03
H
01 01 01 02 02
L W
03
03
02
DIMENSIONS*
mm in.
Overall Length 2902.7 114.3
Length from front to rear face of block 1467.7 57.8
Length from rear face of block to back of generator 1435.0 56.5
Overall Height 1474.2 58.0
Height from crankshaft centerline to top of engine 903.2 35.6
Height from crankshaft centerline to bottom of rails 571.0 22.5
Overall Width 996.3 39.2
Width from crankshaft centerline to port side 533.7 21.0
Width from crankshaft centerline to starboard side 462.6 18.2
Front Center Rear
mm in. mm in. mm in.
Customer mounting hole diameter 25.5 1.0 25.5 1.0 25.5 1.0
Width from crankshaft centerline to side 154.9 6.1 154.9 6.1 154.9 6.1
404.9 15.9 404.9 15.9 404.9 15.9
Length from rear face of block to mounting holes 1043.1 41.1 317.1 12.5 531.9 20.9
*Illustrations and dimensions from drawing: 180-6358.
CATERPILLAR SR4 GENERATOR RATING CONDITIONS
Type . . . . . . . . . . . . . . . . Brushless, revolving field, Engine Performance Parameters
solid state self-excited Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +3%
Construction . . . . . Single bearing, close coupled Specific Fuel Consumption . . . . . . . . . . . . . . . +3%
Three-phase. . . . . . . . . . . . . . . . . . . . . . 10 wire, wye Fuel Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5%
Insulation. . . . . . . Class F with tropicalization and Ratings are based on SAE J1228/ISO8665
anti-abrasion standard conditions of 100 kPa (29.61 in. Hg),
Alignment. . . . . . . . . . . . . . . . . . . . . . . . . . Pilot Shaft 25°C (77°F), and 30% relative humidity. These
Voltage Regulator . . . . . . . . . Generator mounted, ratings also apply at ISO3046/1, DIN6271/3, and
volts-per-hertz BS5514 conditions of 100 kPa (29.61 in. Hg),
Voltage Droop . . . . . . . . . . . . . . . . . . Adjustable for 27°C (81°F), and 60% relative humidity.
parallel operation Fuel rates are based on fuel oil of 35° API
Voltage Regulation. . . . . . . . . . . . . . . . . . . . . . +1/2% [16°C (60°F)] gravity having an LHV of
Voltage Gain . . . . . . . . . . . . . . . . . . . . . . . Adjustable 42 780 kJ/kg (18,390 Btu/lb) when used at 29°C
Generator Weight, Net (approx) (85°F) and weighing 838.9 g/L (7.001 lb/U.S. gal).
450 frame. . . . . . . . . . . . . . . . . . 1075 kg (2370 lb) Additional ratings may be available for specific
Space Heater customer requirements. Consult your Caterpillar
Voltages Available (adjustable +10%, -5%) representative for additional information.
60 Hz — 220-440 volts
Meets or exceeds Marine Society requirements
Performance data is calculated in accordance with tolerances and conditions stated in this specification sheet and is only intended for purposes of
comparison with other manufacturers’ engines. Actual engine performance may vary according to the particular application of the engine and
operating conditions beyond Caterpillar’s control.
TMI Reference No.: DM6107-00 (6-15-01)
Materials and specifications are subject to change without notice. The International System of Units (SI) is used in this publication.
LEHM1604-00 (6-01) Printed in U.S.A. ©2001 Caterpillar
Supersedes LEHM4384 All rights reserved.
