Filter
Top Products
SPECIFICATIONS
STANDBY EMERGENCY GENERATOR
Type......................................................................Synchronous
Rotor Insulation .............................................................Class H
Stator Insulation ............................................................Class H
Alternator Output Leads 3-phase .....................................4-wire
Bearings ..................................................................Sealed Ball
Coupling ................................................................Flexible Disc
Load Capacity (Standby Rating) ...............................25/30 kW*
* NOTE: Generator rating and performance in accordance with ISO8528-5, BS5514, SAE
J1349, ISO3046 and DIN 6271 Standards. KW rating is based on LPG fuel and may derate
with natural gas.
Excitation System ............................................................Direct
Generator Output Voltage/kW - 60 Hz
kW Amp CB Size
120/240V, 1-phase, 1.0 pf 25/30 104/125 125/150
120/208V, 3-phase, 0.8 pf 25/30 87/104 100/125
120/240V, 3-phase, 0.8 pf 25/30 75/90 90/100
Generator Locked Rotor KVA Available @ Voltage Dip of 35%
25kW 30kW
35 KVA 45 KVA
ENGINE
Make ........................................................................... Generac
Model .............................................................................In Line
Cylinders and Arrangement .....................................................4
Displacement ............................................................... 1.6 Liter
Bore..............................................................................3.15 in.
Stroke ...........................................................................3.13 in.
Compression Ratio....................................................... 9.5-to-1
Air Intake System ......................................... Naturally Aspirated
Valve Seats ............................................................ Replaceable
Lifter Type .................................................................. Hydraulic
Spark Plug Gap ........................................0.76mm (0.030 inch)
Engine Parameters
Rated Synchronous RPM .......................................60 Hz, 3600
Exhaust System
Exhaust Flow at Rated Output 60 Hz: 25kW 30kW
240 cfm 260 cfm
Exhaust Temp. at Rated Output: 975°F 1025°F
Combustion Air Requirements (Natural Gas)
Flow at rated power, 60 Hz: 25kW 30kW
90 cfm 95 cfm
Governor
Type...........................................................................Electronic
Frequency Regulation .............................................Isochronous
Steady State Regulation ................................................± .25%
Adjustments:
Speed ..................................................................... Selectable
Engine Lubrication System
Type of Oil Pump ...............................................................Gear
Oil Filter .......................................................Full Flow, Cartridge
Crankcase Oil Capacity ............................................ 4 U.S. qts.
COOLING SYSTEM
Type............................................................................... Closed
Water Pump ............................................................. Belt Driven
Fan Speed .........................................................................2484
Fan Diameter ...........................................................17.7 inches
Fan Mode ....................................................................... Pusher
Air Flow (inlet air including alternator and
combustion air) ..................................................1800 ft
3
/min.
Coolant Capacity ....................................................2.0 U.S. gal.
Heat Rejection to Coolant (25/35kW) ....112,000/135,000 Btu/h
Maximum Operating Air Temp. on Radiator ......... 60° C (150° F)
Maximum Ambient Temperature ......................... 50° C (140° F)
FUEL SYSTEM
Type of Fuel ....................................Natural Gas, Propane Vapor
Carburetor............................................................... Down Draft
Secondary Fuel Regulator............................................ Standard
Fuel Shut-off Solenoid ................................................. Standard
Operating Fuel Pressure .................5 in. - 14 in. Water Column
Fuel Consumption - ft
3
/hr (Natural Gas/LPV)
Exercise 25% 50% 75% 100%
Cycle Load Load Load Load
25kW 60/24 120/48 220/87 310/123 390/155
30kW 60/24 145/58 260/103 370/147 470/187
ELECTRICAL SYSTEM
Battery Charge Alternator ......................................12V, 15 Amp
Static Battery Charger ....................................... 2.0 or 2.5 Amp
Recommended Battery .................................Group 26, 525CCA
System Voltage ............................................................ 12 Volts
Voltage Regulator
Type...........................................................................Electronic
Sensing ................................................................Single-phase
Regulation ........................................................................± 1%
Features .........................Adjustable Voltage and Automatic Gain
Power Adjustment for Ambient Conditions
Temperature Deration:
3% for every 10° C above °C 25kW 30kW
40 25
1.65% for every 10° above °F 104 77
Altitude Deration:
1% for every 100 m above m 25kW 30kW
915 182
3% for every 1000 ft. above ft. 2000 600
Controller ................................................................. Nexus
6-1
GenSpec082 Rev. C 12/11
Specifications