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Three Phase Generator: (QuietSource) 36 kW NG/LP Aluminum

…Operates @ 1800 RPMs; Aluminum Housing

This standby generator is best suited for: 1)small to medium-sized home-based or similar businesses (that need 3-phase voltage input); 2)small commercial warehouse or non-food retailer roughly 1000 to 1250 square feet in size (that demands 3-phase electricity); it can also be used to back up: 3)large to extra-large homes (T-Rex recommends 6200 to 8100 square feet in size; must utilize 3-phase power).

This QuietSource three phase generator is available to you in the following voltages: 120/208, 120/240, or 277/480. All these three phase generator models sport 1800 RPM operation - half the speed of most generators - and, as a result, can be a fabulous low-noise alternative when limiting decibels is important. Slower operation does not entail less power - you will find that a 36 kW QuietSource three phase generator unit sacrifices nothing in terms of output. Other key features a no-rust aluminum enclosure, turbo power, and the flexibility of two fuel choices, NG or LP (standard setup for fuel source NG, with modification easily accomplished - on the ground, and without a technician). You will need transfer equipment to use this QuietSource three phase generator - and Generac's three-phase RTS-series switches can make setup simpler due to their compatibility with unit's Nexus tri-lingual controller (see Switch Options tab below). This standby three phase generator model not available to California or Massachusetts residents.

  • Important: Please see the shipping tab for information regarding the liftgate shipping option and residential versus commercial deliveries.

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    Model:  QT03624-3
    Price:  $11,569.00
    Available Options:
    3-Phase Voltage:

    Model Specs

    Manufacturer: Generac QuietSource
    Model #: QT03624GJK
    Color: Grey
    Enclosure: Aluminum
    Engine Make: Generac
    Transfer Switch Included?: No
    Price (All Voltages): $11,569.00

    Rated Power (Natural Gas): 35 kW
    Rated Power (Liquid Propane): 36 kW
    Phase: 3
    Frequency: 60 Hz
    Voltage: 120/208
    Voltage: 120/240
    Voltage: 277/480
    Rated Amps (208-Volt): 121(NG)/125(LP)
    Rated Amps (240-Volt): 105(NG)/108(LP)
    Rated Amps (480-Volt): 52(NG)/54(LP)
    Rotor Poles: NA
    Mainline Circuit Breaker (208-Volt): 150
    Mainline Circuit Breaker (240-Volt): 125 Amps
    Mainline Circuit Breaker (480-Volt): 60 Amps

    Engine Type: Inline 4-Cylinder (Turbocharged)
    Intake Method: Carburetor
    Cylinder Block: NA
    HP/L: NA/2.4
    Number of Cylinders: 4
    Compression Ratio: 8.5:1
    Lubrication Method: Pressurized
    Valve Arrangement: Overhead
    Engine Cooling: Liquid
    Engine rpm: 1800
    Fan Type: Belt Driven
    Governor System: Electronic
    Ignition System: Electronic
    Starter Voltage (DC): 12
    Battery Required (Volts/Cold-Cranking Amps): 12/525 (Included)
    Startup Delay (After Power Interruption): Programmable
    Engine Warm-Up Duration: 5 Seconds
    Engine Cool-Down Period: 1 Minute
    Fuel Type: Natural Gas(NG)/Liquid Propane(LP)
    Fuel Consumption (NG @ Exercise): 48 Cubic Feet/Hour
    Fuel Consumption (NG @ 25% Load): 156 Cubic Feet/Hour
    Fuel Consumption (NG @ 50% Load): 282 Cubic Feet/Hour
    Fuel Consumption (NG @ 75% Load): 392 Cubic Feet/Hour
    Fuel Consumption (NG @ Full Load): 503 Cubic Feet/Hour
    Fuel Consumption (LP @ Exercise): 0.5 Gallons/Hour
    Fuel Consumption (LP @ 25% Load): 1.7 Gallons/Hour
    Fuel Consumption (LP @ 50% Load): 3.1 Gallons/Hour
    Fuel Consumption (LP @ 75% Load): 4.3 Gallons/Hour
    Fuel Consumption (LP @ Full Load): 5.5 Gallons/Hour

    Convenience Features
    Automatic Voltage Regulation: Yes
    Low-Voltage Shutdown: Yes
    High-Voltage Shutdown: Yes
    Low-Oil Shutdown: Yes
    Overspeed Shutdown: Yes
    High-Temperature Shutdown: Yes
    Starter-Overcrank Protection: Yes
    Low-Battery Protection: Yes
    Built-In Battery Charging Capability: Yes
    UL Listed: Yes
    External-Fault Capability: Yes
    Internal-Fault Protection: Yes
    Incorrect-Wiring Protection: Yes
    Mainline Circuit-Breaker Protection: Yes
    Safety Fusing: Yes

    Weight: 1455 lbs
    Dimensions (Inches): 76.75L x 32.38W x 45.13H
    Decibels (@ Exercise - 7 Meters): 58
    Decibels (@ Full Load - 7 Meters): 64
    Compliance: 48-State US

    Additional Features
    Turbocharged/aftercooled 2.4L inline-4
    Standard natural-gas operation; field convertible to operation on propane
    Requires Generac transfer switch for safe connection to home/building circuits
    Incorrect-wiring protection
    All QuietSource models equipped with climate-resistant aluminum housing
    +/-1% voltage fluctuation
    Over/under voltage protection


  • 2-year manufacturer's limited warranty

  • Shipping

    The T-REX Free Shipping Pledge:
    The manufacturers we work with are large concerns that ship multiple items each day. This enables them to attain the best shipping rates available. T-REX passes these savings on to our customers by providing free shipping to any commercial or residential address in the continental United States. This is the T-REX pledge. We will adhere to it even when a freight carrier adds one-time or unanticipated shipping fees. Try obtaining these terms from another Internet-based generator seller. You will not find a more customer-friendly policy than ours.

    About Lift Gates:
    Typical delivery trucks are designed to be unloaded at docks, or by forklifts. In other words, they are designed to deliver to commercial locations where such options are available. By contrast, a lift gate-equipped truck lowers heavy items from the truck trailer (which can be several feet high) to the ground, using a hydraulic mechanism similar to an elevator. If your delivery will go to an address not equipped with a loading dock, and you don't have access to a forklift, then selecting the lift-gate delivery option is a convenient alternative.

    A generator from T-REX can weigh hundreds of pounds. Without access to a loading dock or forklift, unloading one safely may require several able-bodied individuals. Delivery drivers are NOT required by their companies to help customers unload. Unless you are certain that a sufficient number of helpers will be available during the delivery, we urge you to specify the lift-gate shipping option before checking out. Charge for the lift-gate is $75.00, and is NOT included in the Free-Shipping Pledge offered by T-REX. We feel, however, that it is worth the investment.

    Residential Delivery:
    You need to inform us if your delivery will be going to a residential address. Freight companies need to know this because many residential areas can't be serviced by large semi trucks. The generator will instead be loaded onto a smaller truck tailored to home deliveries. A home which serves as a place of business (regardless of the presence of company name/signage), if located in a residential area, is still considered a residential address for shipping purposes. Please select the residential delivery option if applicable. T-REX agrees to pay all additional residential delivery costs, but to do so, we must be properly informed before shipping arrangements are made.

    To select your choice of residential or commercial delivery, please see the purchase options in the Add To Cart area.

    Switch Options

    Generac RTS-Series Medium-Watt Auto Transfer Switch - Three Phase:
    100-Amp Model (Available 208/240/480 Voltages) - Outdoor
    200-Amp Model (Available 208/240/480 Voltages) - Outdoor
    400-Amp Model (Available 208/240/480 Voltages) - Outdoor

    Generac RTS-Series High-Watt Auto Transfer Switch - Three Phase:
    600-Amp Model (Available 208/240/480 Voltages) - Outdoor
    800-Amp Model (Available 208/240/480 Voltages) - Outdoor


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    T-Rex Generators distributes products from many different standby and portable generator manufacturers at substantially discounted prices. These represented companies include: Asco automatic transfer switches, Briggs & Stratton generators, Winco generators, Generac Generators, GenTran transfer switches, Reliance Controls Transfer Switches, and Zenith automatic transfer switches. T-Rex also carries Honda powered generators which have the same time-tested Honda engines as the substantially more expensive Honda generator brand units.