Equipped with a durable 4.3L Industrial Powertrain, 4-cycle, this Briggs and Stratton 35kW Standby Fortress Generator ensures reliable performance with its robust electronic governor and advanced cooling system. The aluminum sound enclosure minimizes noise, operating at a quiet 68 dB(A) at no load. Its full-pressure lubrication and efficient air induction system guarantee optimal functionality, even under demanding conditions. The integrated controller with real-time monitoring makes operation seamless, while the generator’s capability to handle extreme temperatures and elevations ensures uninterrupted power supply. Certified to meet UL and cUL standards, It is the perfect solution for both residential and commercial power needs.

Briggs and Stratton 35kW Generator Features

InfoHub™ Wireless Monitoring

Lets you monitor your Generator’s status on your Computer, Tablet or Smartphone sending maintenance reminders so your Generator is always ready for the next power outage. Sold separately.

Symphony Choice Power Management

Manages the distribution of power to your selected Appliances automatically. Load management ensures the Briggs and Stratton Generator Fortress won’t Overload and Shutdown so your family can continue with its daily routine. Transfer switch and modules sold Separately.

Best in Class Warranty

Covers parts, labor and travel for the Full-length of the Warranty.

Made in USA

Briggs and Stratton Generators Assembled and Engineered in the USA with domestic and foreign parts.

Corrosion Protection

Reinforced, corrosion-resistant aluminum enclosures and bases with Dura-Zen™ coating for a long-lasting, attractive appearance.

Ratings & Compliance

The Briggs and Stratton 35kW Generator is rated 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).

Installations

You must Strictly comply with All applicable codes, industry standards, laws, regulations, and the provided installation manual. Running engines release Carbon Monoxide, an odorless, colorless, and poisonous gas. To ensure safety, keep exhaust gas away from any windows, doors, ventilation intakes, or crawl spaces. We strongly advise consulting the installation manual for additional guidance. This manual offers specific instructions for placing the Briggs and Stratton Fortress 35kW Standby Generator. Carefully consider and follow the stipulations of NFPA 37, which require businesses to install and maintain Carbon Monoxide Detectors. This step is crucial for safeguarding the well-being of everyone on the premises.

OVERVIEW
Brand	Fortress™
Model Number	76830
Rated Countries	US / Canada
Rated AC Voltage (Volts)	120 / 240
Frequency (Hz)	60
Generator Breaker (Amps)	150
Operating Ambient Temperature (°C / °F)	-28 – 40 / -20 – 104
Running Amperage (LP / NG) (Amps)	145 / 145
Running Watts¹ (LP / NG) (kW / kVA)	35 / 35
Running Amperage – Continuous Duty International Use Only (LP / NG) (Amps)	116 / 116
Running Watts – Continuous Duty (International Use Only) (LP / NG) (kW / kVA)	28/28 / 28/28
Phase	1
Engine
Engine Brand/Manufacturer	PSI
Model Type	4.3L Industrial Powertrain, 4-cycle
Aspiration	Naturally Aspirated
Speed (RPM)	1800
Displacement (L / ci)	4.3 / 262
Compression Ratio	9.8:1
Rated Horsepower (gross hp)	51.5 LP / 51.5 NG
Governor Type	Electronic
Bore & Stroke (mm / in)	101.6 x 88.0 / 4.00 x 3.48
Number of Cylinders	6
Cylinder Arrangement	V6
Start Type	Automatic
Frequency Regulation No Load to Full Load	Isochronous
Air Filter Type	Dry
Low Oil Pressure Sensor	Yes
Low Coolant Sensor	Yes
Engine Block Heater	Yes
Engine – Output Deratings
Rated Temperature (°C / °F)	25 / 77
Rated Altitude (Above Sea Level) (m / ft)	366 / 1200
Temperature Derate	1.5% for every 5.6°C (10°F) above rated temp
Altitude Derate	2.5% for every 305m (1000ft) above rated altitude
Sound Rating²
No Load dB(A)	66
Air Induction System
Combustion Air (m³/min / cfm)	2.2 / 79
Lubrication System
Type	Full Pressure
Oil Capacity (L / qt)	3.5 / 3.7
Oil Filter (Quantity / Type)	1 / Cartridge
Cooling System
Cooling System Type	Radiator, Closed-loop
Coolant Capacity (Engine Only) (L / qt)	9.3 / 2.5
Heat Rejected to Cooling Water at Rated Load (kcal/sec / BTU/min)	5.7 / 1366
Water Pump Type	Centrifugal
Electrical System
Ignition System	Electronic
Battery Quantity	1
Battery Voltage (VDC)	12
Battery CCA (Amps)	800
Starter Motor Voltage (VDC)	12
Battery Charging Alternator
Ground (Negative / Positive)	Negative
Nominal Voltage (VDC)	12
Maximum Amperage (Amps)	90
Exhaust System
Exhaust Manifold Type	Dry
Exhaust Flow at Rated Load (m3/min / cfm)	7.7 / 271
Exhaust Temperature at Rated Load (°C / °F)	693 / 1280
Maximum Allowable Back Pressure (kPa / in Hg)	11.9 / 3.5
Fuel System
Fuel Type	NG / LPV
Fuel Supply Line Inlet	1” NPT
Recommended Fuel, Lower Heating Value Minimum (MJ/m3 / BTU/ft3)	NG: 34.3 / 904 LPV: 87.1 / 2338
Fuel Supply Pressure (mbar / in H₂O)	12-28 / 5-11
Fuel Consumption³
No Load, NG (BTU / hr)	146,000
No Load, NG (ft³ / hr)	146
No Load, NG (m³ / hr)	4.2
Half Load, NG (BTU / hr)	293,000
Half Load, NG (ft³ / hr)	293
Half Load, NG (m³ / hr)	8.3
Full Load, NG (BTU / hr)	444,000
Full Load, NG (ft³ / hr)	444
Full Load, NG (m³ / hr)	12.6
No Load, LP (BTU / hr)	154,000
No Load, LP (ft³ / hr)	62
No Load, LP (m³ / hr)	1.8
Half Load, LP (BTU / hr)	328,000
Half Load, LP (ft³ / hr)	132
Half Load, LP (m³ / hr)	3.8
Full Load, LP (BTU / hr)	483,000
Full Load, LP (ft³ / hr)	194
Full Load, LP (m³ / hr)	5.5
Alternator Specifications
Alternator Type	Self-Excited, 4-Lead
Alternator Manufacturer	Coliseum
Alternator Model Number	30BSPP2-0
Frequency (Hz)	60
Exciter Type – Primary Alternator	Self-Excited
Insulation Rating (Class)	H
Designed Temperature Rise (°C)	125
Bearing (Quantity / Type)	1 / Sealed
Coupling	Flexible Disk
Amortisseur Windings	Full
Number of Poles	2
Voltage Regulator	Analog, 1-Phase Sensing
Voltage Regulation, No Load to Full Load (%)	+/- 1.0
One-step Load Acceptance	100% of Rating
Total Harmonic Distortion (THD), No Load to Full Load (%)	< 5
Controls/Instrumentation
Controller Manufacturer	Briggs & Stratton
Controller	Briggs & Stratton
Charger	Integrated
Starting	AMF
Alternator Frequency	Yes
Real Time Clock	Yes
Engine Hour Counter	Yes
Engine Runtime Scheduler	Yes
Other Features
Battery Rack and Cables	Yes
Electronic, Isochronous Governor	Yes
Gas Fuel System	Yes
Integral Vibration Isolation	Yes
Oil Drain Extension	Yes
Operation and Installation Manual(s)	Yes
Steel Sound Enclosure	Yes
Accessories
Local Emergency Stop Switch	6491-01
Cold Weather Kit	6270-00
Battery Warmer	6342-00
Battery Cable Lockout	6335-00
Engine Communication Cable	6275-00
Controller Communication Cable, USB-A to USB-B	6428-00
Maintenance Kit, Oil Change	6280-00
Maintenance Kit, 1,000 hr	6268-00
Limited Warranty4
Warranty: Generator, Domestic (Parts / Labor / Travel) (Years)	6
Warranty: Generator, International (Parts / Labor / Travel) (Years/Hours)	N/A
Warranty: Engine, Domestic (Parts / Labor / Travel) (Years)	6
Warranty: Enclosure, Surface Rust and Corrosion (Parts / Labor / Travel) (Years)	1
Warranty: Enclosure, Rust Through (Parts / Labor / Travel) (Years)	2
Certifications
UL	Yes
cUL	Yes
Weights & Dimensions
Assembled Dimensions (Length x Width x Height) (in / mm)	71 x 32.3 x 37 / 1803 x 820 x 940
Assembled Weight (lbs / kg)	1000 / 454
Packaged Dimensions (Length x Width x Height) (in / mm)	75.8 x 35.9 x 43.7 / 1925 x 912 x 1110
Packaged Weight (lbs / kg)	1086 / 493

 

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