SG020
SG025
Liquid Cooled Gas Engine Generator Sets
Standby Power Rating
20KW 60 Hz
25KW 60 Hz
Power Matched
GENERAC MMC 4G15 ENGINE
Naturally Aspirated
FEATURES
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INNOVATIVE DESIGN & PROTOTYPE TESTING are key
componentsofGENERAC'Ssuccessin"IMPROVINGPOWERBY
DESIGN." Butitdoesn'tstopthere. Totalcommitmenttocomponent
testing,reliabilitytesting,environmentaltesting,destructionandlife
testing, plus testing to applicable CSA, NEMA, EGSA, and other
standards, allows you to choose GENERAC POWER SYSTEMS
with the confidence that these systems will provide superior
performance.
■
SOLID-STATE, FREQUENCY COMPENSATED VOLTAGE
REGULATION. This state-of-the-art power maximizing regulation
system is standard on all Generac models. It provides optimized
FAST RESPONSE to changing load conditions and MAXIMUM
MOTORSTARTINGCAPABILITYbyelectronicallytorque-matching
the surge loads to the engine.
■
■
SINGLE SOURCE SERVICE RESPONSE from Generac's dealer
network provides parts and service know-how for the entire unit,
fromtheenginetothesmallestelectroniccomponent.Youarenever
on your own when you own a GENERAC POWER SYSTEM.
■
TEST CRITERIA:
✓ PROTOTYPE TESTED
✓ SYSTEM TORSIONAL TESTED
✓ ELECTRO-MAGNETIC INTERFERENCE
✓ NEMA MG1 EVALUATION
✓ MOTOR STARTING ABILITY
✓ ShORT CIRCUIT TESTING
✓ UL 2200 COMPLIANCE AVAILABLE
GENERAC TRANSFER SWITCHES, SWITCHGEAR AND
ACCESSORIES. Long life and reliability is synonymous with
GENERAC POWER SYSTEMS. One reason for this confidence is
that the GENERAC product line includes its own transfer systems,
accessories, switchgear and controls for total system compatibility.
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SG020 / SG025
OPERATING DATA
STANDBY
Rated AMP
SG020
SG025
GENERATOR OUTPUT VOLTAGE/KW-60Hz
120/240V, 1-phase, 1.0 pf
NG/LP
20
20
20
20
NG/LP
25
25
25
25
Rated AMP
104.2
86.8
83.3
69.5
60.2
30.1
120/208V, 3-phase, 0.8 pf
120/240V, 3-phase, 0.8 pf
277/480V, 3-phase, 0.8 pf
75.3
37.6
MOTOR STARTING KVA
Maximum at 35% instantaneous voltage dip
with standard alternator; 60 hz
40
46
FUEL
Fuel consumption—60 hz—100% Load
N.G.
369
10.4
L.P.
153
4.3
N.G.
442
12.5
L.P.
183
5.2
ft.3/hr.
m3/hr.
COOLING
Coolant capacity
System lit.(US gal.)
Engine lit.(US gal.)
Radiator lit.(US gal.)
60 hz lit.(US gal.)
60 hz BTU/hr.
6.6 (2)
0.9 (0.25)
6.6 (1.75)
40 (10.6)
96,000
6.6 (2)
0.9 (0.25)
6.6 (1.75)
40 (10.6)
120,000
Coolant flow/min.
heat rejection to coolant
Cooling air flow
60 hz m3/min. (cfm)
45 (1590)
45 (1590)
COMBUSTION AIR REQUIREMENTS
Flow at rated power
60 hz m3/min. (cfm)
1.8 (65)
2.3 (81)
EXHAUST
Exhaust flow at rated output
60 hz m3/min. (cfm)
6.0 (212)
5.0 (1.5")
593 (1100)
1.5"
7.3 (260)
5.0 (1.5")
635 (1175)
1.5"
Max. recommended back pressure
Exhaust temp. at rated output
Exhaust outlet size
Kpa (hg)
oC (oF)
N.P.T. (female)
ENGINE
Rated RPM
60 hz
60 hz
60 hz m/min. (ft./min.)
60 hz - psi
3600
30
590 (1937)
78
3600
37
590 (1937)
97
hP at rated KW
Piston speed
BMEP (psi)
POWER ADJUSTMENT FOR AMBIENT CONDITIONS
Temperature
-3% for every 10oC above - °C
-1.5% for every 10oF above - °F
Altitude
40
104
25
77
-3% for every 300 m above - m
-3% for every 1000 ft. above - ft.
913
3000
150
500
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SG020 / SG025
STANDARD ENGINE & SAFETY FEATURES
■ high Coolant Temperature Automatic Shutdown
■ Low Coolant Level Automatic Shutdown
■ Low Oil Pressure Automatic Shutdown
■ Overspeed Automatic Shutdown (Solid-state)
■ Crank Limiter (Solid-state)
■ Secondary Fuel Regulator (N.G. and L.P.)
■ Low Fuel Pressure Alarm
■ Stainless Steel Flexible Exhaust Connection
■ Battery Charge Alternator
■ Battery Cables
■ Oil Drain Extension
■ Battery Tray
■ Radiator Drain Extension
■ Vibration Isolation of Unit to Mounting Base
■ 12 Volt, Solenoid-Activated Starter Motor
■ Air Cleaner
■ Factory-Installed Cool Flow Radiator
■ Closed Coolant Recovery System
■ UV/Ozone Resistant hoses
■ Fan Guard
■ Rubber-Booted Engine Electrical Connections
■ Isochronous Governor
■ Control Console
■ Radiator Duct Adapter
■ Fuel Lockoff Solenoid
■ Engine Block heater
■ Low Coolant Temperature
OPTIONS
■
OPTIONAL FUEL ACCESSORIES
❍ Flexible Fuel Lines
❍ Oil Make-Up System
❍ Oil heater
❍ L.P. Liquid Withdrawal
❍ Automatic Gaseous Dual Fuel
❍ 5 Year Warranties
❍ Export Boxing
❍ heavy Duty Air Cleaner
❍ Engine Block heater
■
■
OPTIONAL EXHAUST ACCESSORIES
❍ Critical Exhaust Silencer
■
OPTIONAL ENCLOSURE
❍ Weather Protective
❍ Sound Attenuated
❍ Alluminum and Stainless Steel
❍ Enclosed Muffler
OPTIONAL ELECTRICAL ACCESSORIES
❍ Battery, 12 Volt, 75 A.h., 27F
❍ Battery heater
❍ 2A Battery Charger
❍ 10A Dual Rate Battery Charger
■
OPTIONAL ALTERNATOR ACCESSORIES
❍ Alternator Strip heater
❍ Alternator Tropicalization
❍ Main Line Circuit Breaker
Distributed by:
■
■
CONTROL CONSOLE OPTIONS
•
See Digital Controller H-100 specification 0172110SBY
ADDITIONAL OPTIONAL EQUIPMENT
❍ Automatic Transfer Switch
❍ 3 Light Remote Annunciator
❍ 5 Light Remote Annunciator
❍ 18 Light Remote Annunciator
❍ Alarm Relay Panels
❍ Unit Vibration Isolators (Pad/Spring)
Design and specifications subject to change without notice. Dimensions shown are approximate. Contact your Generac dealer for certified drawings. DO NOT USE ThESE DIMENSIONS FOR INSTALLATION PURPOSES.
WEIGHT: 1650 lbs.
mm [in]
®
GENERAC POWER SYSTEMS, INC. • P.O. BOX 8 • WAUKESHA, WI 53187
262/544-4811 • FAX 262/544-4851
© 2006 Generac Power Systems, Inc. All rights reserved. All specifications subject to change without notice.
Bulletin 0172510SBY / Printed in USA 12.05, rev: 01.06
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