150kW Briggs & Stratton Standby Generator - 120/208V, 600A Breaker, 3-Phase, Block Heater & Battery Charger Included - 3-Year Warranty

Briggs & Stratton 150kW Standby Generator – 120/208V Three-Phase Natural Gas Backup Power The Briggs & Stratton 150kW Standby Generator (Model 080021) delivers enterprise-grade three-phase backup power for large commercial buildings, office complexes, data centers, healthcare facilities, and mission-critical operations running on 120/208V Wye-configured electrical systems. When the grid fails, this unit restores three-phase power within seconds — keeping HVAC systems, refrigeration, servers, lighting, elevators, security systems, and critical equipment running without interruption. Powered by a liquid-cooled, turbocharged PSI 8.8L V-8 engine running at a steady 1,800 RPM, this 150kW unit brings the largest engine platform in the Briggs & Stratton liquid-cooled lineup to bear on three-phase commercial applications. Natural gas operation connects directly to your existing utility supply — no on-site fuel storage, no refueling, and no interruptions to your fuel source during an extended outage. DSE 7310 Mk II Smart Controller The integrated DSE 7310 Mk II controller provides web-based monitoring, RS232/RS485 remote communications, configurable inputs/outputs (9/8), CANbus speed sensing, a 250-event log, load switching, load shedding, integral PLC editor, runtime scheduling, and full power monitoring (kW, kVA, kVAR) — giving facility managers and electrical contractors complete operational visibility and control from on-site or remotely. Block Heater & Battery Charger Included Both accessories come standard. The block heater maintains engine temperature for reliable cold-weather starts, while the Marinco 6-amp battery charger keeps the 925 CCA starting battery at peak charge — ensuring the system is always primed and ready when you need it most. Key Specifications Spec Detail Standby Rating 150 kW / 187.5 kVA @ 0.8 pf Voltage 120/208V, 3-Phase (Wye), 60 Hz Breaker 600A Running Amperage 520A Engine PSI 8.8L V-8, Turbocharged, 1,800 RPM Displacement 8.8L Bore & Stroke 4.35 × 4.5 in / 110.5 × 114.3 mm Compression Ratio 10.1:1 Governor Type Electronic, Isochronous Frequency Regulation Steady State ±0.5% Ignition System Individual Ignition Coil Fuel Type Natural Gas (NG) Fuel Supply Line Inlet 1-1/2" NPT Fuel Supply Pressure 7–11 in H₂O / 17–28 mbar Full-Load Fuel Use 1,970 ft³/hr (55.8 m³/hr) Half-Load Fuel Use 1,105 ft³/hr (31.3 m³/hr) No-Load Fuel Use 290 ft³/hr (8.2 m³/hr) Sound Level 77 dB(A) @ 7m, no-load Alternator MeccAlte ECO38-1SN/4, Brushless 12-Lead Alternator Configuration Wye THD < 3.5% Voltage Regulation ±1.0% NL to FL One-Step Load Acceptance 100% of Rating Sustained Short-Circuit Current 300% of Rated Current for 20 Seconds Oil Capacity 8.0 qt / 7.6L Oil Filter 1 / Spin-On Battery 12V, 925 CCA Dimensions (L×W×H) 135 × 52 × 86 in / 3429 × 1321 × 2184 mm Weight 5,380 lb / 2,440 kg Enclosure Galvannealed Steel, Sound-Attenuated, Lockable Stainless Steel Door Latches Certifications UL 2200, cUL, NFPA-110 Level 2 Warranty 3-Year Parts, Labor & Travel 600A Breaker for Large-Scale Three-Phase Commercial Loads The factory-installed 600A breaker provides robust overload protection and simplified connection to your 120/208V three-phase Wye distribution panel. With 520A running amperage across three phases, this unit handles the most demanding commercial electrical loads with confidence — from large-scale HVAC and data center infrastructure to healthcare equipment, elevators, and whole-facility coverage. The premium Galvannealed steel enclosure features acoustic insulation meeting UL 94 HF1 flammability classification, a critical-grade silencer, lockable stainless steel door latches, and hinged doors for easy service access — delivering both weather resistance and reduced noise output at just 77 dB(A) no-load. Integral vibration isolation ensures smooth, stable operation. This unit is rated for NFPA-110, Level 2 applications with appropriate accessories. Optional accessories include remote annunciator kits (DSE 2548-01), remote display module (DSE 2510-32), communication interface (DSE 890-01), AVR communication cable, and emergency stop switches (NEMA 4X). Model: 080021 Warranty: 3-Year Parts, Labor & Travel FAQ What can the Briggs & Stratton 150kW 080021 generator power? With 150kW / 520A of three-phase output at 120/208V Wye, this generator is sized for large commercial facilities, data centers, healthcare operations, and office complexes. It simultaneously powers HVAC systems, commercial refrigeration, servers, elevators, lighting, security systems, and other critical three-phase loads during an outage — making it one of the most capable units in the Briggs & Stratton liquid-cooled lineup. Why choose the 080021 over the 100kW 080011 or 125kW 080016 at 120/208V? All three are 120/208V Wye three-phase units but at different output levels. The 080021 delivers 150kW / 520A — 50% more output than the 100kW 080011 (347A) and 20% more than the 125kW 080016 (434A). It also steps up to the larger 8.8L engine, higher CCA battery, premium acoustic enclosure, and 1-1/2" NPT fuel inlet. Choose the 080021 for facilities with the highest power demands or those requiring NFPA-110 Level 2 compliance. What fuel type does the 080021 use and what are the supply requirements? This generator runs on natural gas (NG). The fuel supply line inlet is 1-1/2" NPT and requires a supply pressure of 7–11 in H₂O (17–28 mbar). Full-load fuel consumption is approximately 1,970 ft³/hr (55.8 m³/hr) — verify your utility gas supply capacity can support this demand before installation. Does the Briggs & Stratton 080021 include an automatic transfer switch? An automatic transfer switch (ATS) is not included but is available separately. When paired with a compatible ATS, this generator activates automatically within seconds of detecting a utility power failure — with no manual intervention required. What does the 3-year warranty cover? The Briggs & Stratton 3-year limited warranty covers parts, labor, and travel for domestic installations. The engine carries the same 3-year coverage. Enclosure surface rust and corrosion are covered for 1 year; rust-through is covered for 2 years. See the operator's manual or BRIGGSandSTRATTON.com for complete warranty terms.