Spec Sheet

2 of 9
®
application & engineering data48 / 60 / 80 kW
ENGINE SPECIFICATIONS
48 kW 60 / 80 kW
Make Generac Generac
Model
Inline 4 cylinder Inline 4 cylinder
Cylinders 4 4
Displacement (Liters) 4.5 4.5
Bore (in/mm) 4.5 / 114.3 4.5 / 114.3
Stroke (in/mm) 4.25 / 107.95 4.25 / 107.95
Compression Ratio 9.9:1 8.85:1
Intake Air System Naturally Aspirated Turbocharged and aftercooled
Lifter Type Hydraulic Hydraulic
ENGINE LUBRICATION SYSTEM
Oil Pump Type Gear
Oil Filter Type Full Flow Spin-On Cartridge
Crankcase Capacity (qt / l) 12 / 11
ENGINE COOLING SYSTEM
Type Ethylene Glycol 50 / 50 Mix
Water Pump Belt-Driven
Fan Speed (rpm) 2,100
Fan Diameter 48 kW (in / cm) 20 (50.8)
Fan Diameter 60 kW and 80 kW (in / cm) 22 (55.9)
Fan Mode Pusher
FUEL SYSTEM
Fuel Type Natural Gas, Propane Vapor
Fuel Shut Off Solenoid Standard
LP Fuel Pressure 7 - 14 in Water Column
NG Fuel Pressure 3.5 - 14 in Water Column
ENCLOSURE FEATURES
Aluminum weather protective
enclosure
Ensures protection against mother nature.
Electrostatically applied textured epoxy paint for added
durability.
Enclosed critical grade muf-
fler
Quiet, critical grade muffler is mounted inside the unit to
prevent injuries.
Small, compact, attractive Makes for an easy, eye appealing installation.
SAE Sound attenuated enclosure ensures quiet operation.
GENERATOR FEATURES
Revolving field heavy duty generator
Directly connected to the engine
Operating temperature rise 120 °C above a 40 °C ambient
Class H insulation is NEMA rated
Class F insulation is NEMA rated
All models fully prototyped tested
ELECTRICAL SYSTEM
Battery Charge Alternator 12 Volt 35 Amp
Static Battery Charger 2.5 Amp
Recommended Battery (battery not included) Group 27F (48kW), 725CCA
System Voltage 12 Volts
GOVERNOR SPECIFICATIONS
Type Electronic
Frequency Regulation Isochronous
Steady State Regulation ± 0.25%
VOLTAGE REGULATION
Type Electronic
Sensing Single Phase
Regulation ± 1%
GENERATOR SPECIFICATIONS
48 kW 60 / 80 kW
Type Synchronous Synchronous
Rotor Insulation Class F H
Stator Insulation Class H H
Telephone Interference Factor (TIF) <50 <50
Alternator Output Leads 1-Phase 4 wire 4 wire
Alternator Output Leads 3-Phase 6 wire 6 wire
Bearings Sealed Ball Sealed Ball
Coupling Flexible Disc Flexible Disc
Excitation System Direct Brushless
(All ratings in accordance with BS5514, ISO3046, ISO8528, SAE J1349 and DIN6271)
Protector
®
Series