Cummins 150kW QuietConnect Diesel Home Standby Generator — C150D6
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At a glance
- Standby Rating
- 150 kW (188 kVA) @ 60 Hz
- Prime Rating
- 135 kW (169 kVA) @ 60 Hz
- Voltage / Phase
- 1-phase 120/240V; 3-phase 120/208, 120/240, 277/480, 347/600, 127/220V
- Fuel
- Diesel
- Engine
- Cummins QSB7-series, 6.7 L (408 in3) turbocharged charge-air-cooled, cast-iron in-line 6-cylinder, 1800 rpm
- Cooling
- Liquid-cooled (standard high-ambient radiator package, rated to 50C/122F)
- Alternator
- Brushless, 4-pole, revolving field; THD < 5%
- Sound Level
- Approx. 71-73 dB(A) at 7 m (23 ft) with Sound Level 2 enclosure
- Dimensions (Level 2 sound enclosure)
- 160 x 40 x 72 in (4061 x 1016 x 1836 mm)
- Dimensions (Level 1 sound enclosure)
- 143 x 40 x 72 in (3621 x 1016 x 1836 mm)
- Weight (open set, wet)
- Approx. 3064 lbs (1390 kg); ~3635 lbs with Level 1 enclosure
- Control
- PowerCommand 1.1 electronic control
- Standards
- EPA Tier 3, UL 2200, NFPA 110 Level 1; enclosure rated to 180 MPH wind (ASCE7-10)
- Warranty
- 2-year/1000-hour standby base warranty (3- and 5-year options available)
Why this generator
- 150 kW (188 kVA) standby power from a rugged Cummins QSB7 6.7L turbocharged diesel engine built for reliable response to load changes
- Liquid-cooled with a high-ambient radiator package rated for continuous running up to 50C (122F)
- Quiet operation - roughly 71-73 dB(A) at 7 meters with the Sound Level 2 aluminum sound-attenuated enclosure
- Durable green aluminum enclosure with powder-coat paint, evaluated to withstand 180 MPH wind loads per ASCE7-10
- Wide voltage flexibility: single-phase 120/240V plus multiple 3-phase options up to 347/600V
- EPA Tier 3 certified and NFPA 110 Level 1 compliant, accepting full rated load in a single step, with PowerCommand 1.1 control
Everything you need to know
The Cummins C150D6 is a 150 kW diesel standby generator from the Cummins QuietConnect commercial-grade series — a liquid-cooled machine built to carry commercial buildings, agricultural and industrial sites, and multi-building properties through extended utility outages. With an energy-dense on-site fuel supply, it delivers full rated output and complete fuel autonomy, independent of the utility gas grid.
Automatic, Hands-Off Backup
Paired with a Cummins automatic transfer switch, the C150D6 monitors utility power continuously, starts within seconds of an outage, and transfers the full load automatically — then returns to utility power and shuts down once the grid is restored. No manual switching, no cords, and no downtime for the systems that can't go dark.
Commercial-Grade Power & Control
Cummins PowerCommand control governs the C150D6 with precise voltage and frequency regulation and strong motor-starting capability — critical for hard-starting loads like central air conditioning, well and irrigation pumps, refrigeration, and three-phase equipment. It's the same power pedigree Cummins builds for hospitals, data centers, and critical facilities, scaled for commercial and industrial use.
Diesel Power & Fuel Autonomy
Diesel makes the C150D6 the right choice where natural gas isn't available, or where you want full control of your own fuel supply. Diesel's energy density delivers strong full-load performance, and an on-site tank keeps you running through extended outages on your own schedule.
Factory-Authorized, Quote-Based Pricing
Total Generator Pros is a factory-authorized Cummins dealer. Because every large-format standby installation is engineered to the site, pricing on the C150D6 is quote-based. Request a free quote and we'll spec the unit, transfer switch, and installation for your project — with free nationwide shipping, turnkey installation across North & South Carolina, and 0% APR financing available on qualifying orders.
- 150 kW standby power
- Cummins QuietConnect series, liquid-cooled
- Diesel fuel
- Cummins PowerCommand digital control
- Automatic whole-building transfer with a Cummins ATS
- Commercial-grade, engineered for commercial and industrial use
- Model C150D6
Frequently asked questions
What fuel does the C150D6 run on?+
The C150D6 is a diesel-powered standby generator.
Does the price include installation?+
No — the online price covers the unit shipped free to the lower 48. Professional installation is available in NC & SC on a quote basis; outside that area we'll help you find a qualified local installer.
How fast does it ship?+
Free curbside / liftgate shipping to the contiguous 48 states. Made-to-order units typically ship in 12 weeks or less.
What warranty is included?+
5-year limited factory warranty, registered and supported directly through Cummins.
Is financing available?+
Yes — 0% APR financing is available on qualifying orders. Ask us for details before checkout.
Free curbside shipping
Liftgate delivery to the lower 48. Ships in 12 weeks or less (made-to-order commercial unit).
Install help, no upsell
We size, spec, and connect you with a vetted local installer — or talk your contractor through it for free.
Real Cummins warranty
Full 5-year limited warranty — registered and supported through Cummins directly.