Generac Power Systems Portable Generator 5261 User Manual

Liquid Cooled  
Gas Engine  
Generator Sets  
Standby Power Rating  
45 kW 60 Hz  
Model Number: 5261 (Steel - Tan)  
Whisper-Test™  
Low Speed Exercise  
61 dB(A) at 23 feet  
GENERAC 2.4L ENGINE  
Naturally Aspirated  
Gaseous Fueled  
UL 2200 Listed  
Transfer Switch is sold separately  
STANDARD EQUIPMENT  
UV/Ozone resistant hoses  
Watertight state of the art electrical connectors  
Mainline circuit breaker  
Radiator drain extension  
Battery charge alternator  
2 Amp static battery charger  
Battery rack and battery cables  
Fan and belt guards  
All input connections in one single area  
High coolant temperature shutdown  
Low oil pressure shutdown  
Low coolant level automatic shutdown  
Overspeed automatic shutdown  
Crank timer  
Exercise timer  
Oil drain extension  
Cool flow radiator  
Closed coolant recovery system  
Isochronous governor  
Flex fuel line pigtail  
FEATURES  
Rodent proof construction  
High efficiency, low distortion Generac designed  
alternator  
Vibration isolated from mounting base  
Matching Generac transfer switches engineered and  
tested to work as a system  
All components easily accessible for maintenance  
Electrostatically applied textured powder paint  
Acoustically designed engine cooling system  
Innovative design and fully prototype tested  
UL 2200 Listed  
Solid state frequency compensated voltage regulator  
Dynamic and static battery charger  
Sound attenuated acoustically designed enclosure  
Whisper-Test™ for low noise level exercise  
High flow low noise factory engineered exhaust system  
State of the art digital control system with R-Series digital  
control panel  
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STANDBY 45 kW  
OPERATING DATA  
STANDBY 45 kW  
KW RATING  
45  
ENGINE SIZE  
2.4 Liter  
GENERATOR OUTPUT VOLTAGE/KW - 60Hz  
KW  
AMP  
CB Size  
120/240V, 1-phase, 1.0 pf  
45  
187.5  
200  
GENERATOR LOCKED ROTOR KVA  
AVAILABLE @ VOLTAGE DIP OF 35%  
Single phase  
100  
ENGINE FUEL CONSUMPTION (Natural Gas) (Propane)  
Natural Gas  
(ft3/hr.)  
102  
Propane  
(gal/hr.)  
cu ft/hr  
Exercise cycle  
1.11  
40.4  
77.1  
148  
206.3  
286  
25% of rated load  
50% of rated load  
75% of rated load  
100% of rated load  
194  
373  
520  
720  
2.12  
4.07  
5.67  
7.86  
ENGINE COOLING  
Air flow (inlet air including alternator and combustion air) ft3/min.  
2,725  
3.0  
173,000  
60 (150)  
50 (140)  
System coolant capacity  
US gal.  
BTU/hr.  
°C (°F)  
°C (°F)  
Heat rejection to coolant  
Max. operating air temp. on radiator  
Max. ambient temperature  
COMBUSTION AIR REQUIREMENTS  
Flow at rated power 60 Hz  
cfm  
144  
SOUND EMISSIONS IN DBA  
db(A) @ 23 feet in exercise mode  
db(A) @ 23 feet at normal operating load  
61  
73  
EXHAUST  
Exhaust flow at rated output 60 Hz  
Exhaust temp. at muffler outlet  
cfm  
°F  
429  
1150  
ENGINE PARAMETERS  
Rated synchronous RPM  
HP at rated KW  
60 Hz  
60 Hz  
3600  
71  
POWER ADJUSTMENT FOR AMBIENT CONDITIONS  
Temperature Deration  
3% for every 10 °C above - °C  
1.65% for every 10 °F above - °F  
Altitude Deration  
25  
77  
1% for every 100 m above - m  
3% for every 1000 ft. above - ft.  
183  
600  
RATING: All single phase units are rated at 1.0 power factor. STANDBY RATING: Standby ratings apply to installations served by a reliable utility  
source. The standby rating is applicable to varying loads for the duration of a power outage. There is no overload capability for this rating. Ratings  
are in accordance with ISO-3046-1. Design and specifications are subject to change without notice. Maximum wattage and current are subject to  
and limited by such factors as fuel Btu content, ambient temperature, altitude, engine power and condition, etc.  
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INTERCONNECTIONS  
STANDBY 45 kW  
INSTALLATION LAYOUT  
UNIT WEIGHT: Steel 1414 lbs.  
®
GENERAC POWER SYSTEMS, INC. • P.O. BOX 297 • WHITEWATER, WI 53190  
www.guardiangenerators.com  
Bulletin 0174540SBY / Printed in U.S.A. 05.07  
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© 2007 Generac Power Systems, Inc. All rights reserved. All specifications are subject to change without notice.  

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