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12kW1 Standby Generator
Briggs & Stratton®
The Smart Choice
Reliable back-up power for added peace of mind.
Guard against losses due to power outages with
a Briggs & Stratton Standby Generator.
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New Upgraded Control System
• New AVR optimizes generator performance with tighter voltage control
• LCD display that displays multi-line text and graphics
• Default exercise cycle setting of 16 seconds
• Low speed exercise available to save fuel and reduce noise
• Monitors cold temperatures to avoid moisture buildup in engine oil
• Cleaner power with improved frequency regulation
• More eicient alternator capable of starting most 5-ton air conditioners
Designed for Easy Installation & Maintenance
• Approved for installation as close as 18" to a building
• Removable roof and side panels provide better service access to
the engine and alternator
• Controller, battery charger, and AVR can be replaced separately
• External on/o switch located on back of enclosure
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Commercial Vanguard® Engine
• Easy conversion between natural gas (NG) and liquid propane vapor
(LPV) during installation
• Advanced debris management keeping engine clean and cool for
enhanced durability and performance
• Dynamically balanced crankshaft minimizes engine noise and vibration
Charging System
• Independent battery charger
• Optimizes battery life with a 3-stage battery charger (bulk,
absorption, and float stage)
Corrosion Resistant Enclosure & Base
• Made with automotive grade galvanneal steel to resist rust
• Powder-coated paint for years of protection against chips
and abrasions
• Certified to withstand hurricane-force winds up to 175mph
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Briggs & Stratton® Full Synthetic Generator Oil
• Shields the engine from low temperature sludge buildup
and high temperature deposits
• Reduces engine wear, scoring and abrasion
Compatible with Symphony® II Power
Management System
• Customizable to your home’s needs
• Automatically balances the power of your home’s electrical load
including high wattage items like air conditioning units and
electric ovens
• Oers whole house power with a more aordable home generator
• Compatible transfer switches and modules sold separately
Generator Set Rating
Liquid Propane Vapor Natural Gas Limited Warranty
Model
040590 Steel 120/24 0 1 60 60 12 50 10.8 45 5 Year
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This generator is certified in accordance with UL (Underwriters Laboratories) 2200 (stationary engine generator assemblies) and CSA (Canadian Standards Association) standard C22.2 No. 100-14 (motors and generators).
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The installation manual conta ins speci fic instructions relate d to generator placement in addi tion to NFPA 37, including the re quirement t hat carbon monoxide detectors be ins talled and maintaine d in your home .
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Single pha se units are rated at 1. 0 power factor and thr ee phase units are rate d at 0.8 p ower factor.
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Se e operato r’s manual o r BRIGGSandSTRATTON.com for complete warranty details.
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Up to 175 mph, when installed in acc ordance with the ins tallatio n manual.
Enclosure
Type
Voltage Phase3Hz
Circuit
Breaker Amps
LPV kW1LPV Amps NG kW
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NG Amps Parts, Labor, Travel
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Engine Specifications
12kW¹ Standby Generator
Engine
Engine Brand Vanguard
Engine Speed (RPM) 3600
Engine Fuel
Liquid Propane Vapor (LPV) or
Natural Gas (NG)
Engine Cylinder Configuration OHV
Number of Cylinders 2
Displacement (L / Ci) 0.627 / 38.26
Compression Ratio 8.3:1
Governor Type Electronic
Frequency Regulation +/- 0.3 Hz (0.5%)
Valves OHV with Hardened Seats
Ignition System
Fixed Timing Magnetron®
Electric Ignition
Starter Motor Rating Voltage 12 Volt
Battery Required
12 Volt, Group BCI 26 or 51,
540 CCA Minimum
Lubrication
Oil Capacit y (L / qt) 1.3 / 1.37
Low Pressure Switch Included
Lubrication System Full Pressure
Oil Briggs & Stratton 5W30 Full Synthetic
Alternator Specs
Manufacturer Mecc Alte
Type Self-Excited, 4-Lead
Voltage Regulator Automatic
Insulation Class H
Peak Motor Starting kVA 37
Controller Features
Generator Sensing Single phase voltage monitoring
LCD Display Displays multi-line text and graphics
High Temperature Switch Included
Dura-Bore Cast Iron
Cylinder Sleeve
Included
Fault Display Provides up to 39 detailed fault codes
Exercise Cycle
Operations
Fuel Consumption
BTU / hr
ft3 / hr
m3 / hr
g / hr LPV - 2.26 LPV - 1.68 LPV - 0.62
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Full Load 1/2 L oad No Load
NG - 172,000
LPV - 209,000
NG - 171.6
LPV - 83.3
NG - 4.87
LPV - 2.37
NG - 117,000
LPV - 155,000
NG - 116. 9
LPV - 61.8
NG - 3.31
LPV - 1.76
NG - 66,000
LPV - 57,000
NG - 66
LPV - 22.6
NG - 1.87
LPV - 0.65
Unlike some other standby generator manufacturers, our warranty covers parts, labor AND travel
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for the full length of the warranty with no start-up costs!
Six exercise length options
Default: Start and run for 16 seconds;
Abort exercise below 40° F (internal
temperature)
Sound R atin g At 7 Mete rs
Low Idle Mode 64 dBA
No Load 69 dBA
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This generator is certified in accordance with UL (Underwriters Laboratories) 2200 (stationary engine generator assemblies) and CSA (Canadian Standards Association) standard C22.2 No. 100-14 (motors and generators).
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Fuel consumption rates are estimated based on normal operating conditions at ½ load. Generator operation may be greatly affected by elevation and the cycling operation of multiple electrical appliances – fuel flow rates may vary
depending on these factors.
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See oper ator’s manual or BRIGGSandSTRATTON.com for complete warranty details.
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Lowest no-load measurement per ISO 3744. Sound level measurement at other locations around generator may be different depending upon installation configuration.
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Additional Information
12kW¹ Standby Generator
Operations
Engine Warm Up (sec) 20 seconds after all settable delays
Engine Cool Down (min) 5
Response Time (sec) Immediate after engine warm up
Weight and Dimensions
Assembled We ight (lbs / kg) 361 / 164
Overall Dimensions (in / mm) 28 x 26.1 x 37.2 / 711 x 663 x 945
Packaged Weig ht (lbs / kg) 423 / 192
Packaged Dimensions (in / mm) 39 x 33.5 x 45 / 991 x 851 x 1143
Enclosure Material
Galvanneal Steel with Corrosion
Resistant Paint
Available Transfer Switches
071100 100 Amp
071150 150 Amp
071200 200 Amp
Certifications
CARB Compliant*
FCC Part 15 Clas s B / CAN ICES - 003 (B)
cUL Listed to CSA 22.2 No. 100-14
UL 2200 Listed
EPA Certified Fuel System
Complies with NFPA 37 4.1. 4.1.2
Available Accessories
Maintenance Kit 6035
Cold Weather K it 6567
E-Stop Kit 6491
Power Management
Low Voltage Module
Power Management
High Voltage Module
071052, 071053
071051
071071 Symphony® II 100 Amp
071070 Symphony® II 150 Amp
071068 Symphony® II 200 Amp
071057 Symphony® II Dual 200 Amp
28 in (7 11 mm)
Generator Status LED Kit 6535
Battery Warmer 6578
InfoHub Universal 65 74
26.1 i n (663 m m)
37.2 in
(945 mm)
26.1 i n (663 m m) 22. 5 in (572 mm)
* CARB doe s not regulate emergency standby generators outp utting less than 5 0 HP. Only the EPA st andards apply.
* CARB doe s not regulate emergency standby generators outp utting less than 5 0 HP. Only the EPA st andards apply.
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This generator is certified in accordance with UL (Underwriters Laboratories) 2200 (stationary engine generator assemblies) and CSA (Canadian Standards Association) standard
This generator is certified in accordance with UL (Underwriters Laboratories) 2200 (stationary engine generator assemblies) and CSA (Canadian Standards Association) standard
C22.2 No. 100 -14 (motors and generators).
C22.2 No. 100 -14 (motors and generators).
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12kW¹ Standby Generator
Support every step of the way
Need help? Visit powernow.com
Complete the web form and a local dealer will contact you to answer questions on
our generators, transfer switches and accessories.
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This generator is certified in accordance with UL (Underwriters Laboratories) 2200 (stationary engine
generator assemblies) and CSA (Canadian Standards Association) standard C22.2 No. 100-14 (motors
and generators).
Briggs & Stratton has a policy of continuous product improvement and reserves the right to modify
its specifications at any time and without prior notice.
Not for Prime Power or use w here stan dby syste ms are legally require d, for ser ious life s afety
or health ha zards, or where lack o f power hampers rescue of fire-fighting operations.
BS115 3 - 9/19
BRIGGS & ST RATT ON CORPORATION
POST OFFICE BOX 702
MILWAUKEE, WI 53201 USA
Copy right ©2019. All rights reser ved.
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