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Back Up Generator (Winco PSS21LS-17): 25 kW 3-Ph 240V



…Select Fuel Type When Placing Order




This standby generator is best suited for: 1)small to medium-sized home-based or similar businesses (must require three-phase 120/240-volt electrical power); can also be used to back up 2) large residences (recommendation 4300 - 5700 square feet; home needs to require the correct three-phase voltage input).



As a back up generator, the Winco PSS21LS-17 25 kW 3-phase standby can be factory prepped to burn natural gas (NG), liquid-propane vapor (LP Vapor), or liquid-propane withdrawal (LP Liquid Withdrawal) - must specify desired fuel source when ordering. This back up generator can be great for small-business standby; features include GM industrial-grade power with automotive-style liquid cooling, and load-shielding brushless generator for a hyper-clean sine wave. Economy and sleep modes reduce fuel consumption and engine wear of back up generator. Quiet 1800-rpm operation at full capacity. Does require transfer equipment to be properly operated (see Switch Options tab for list of compatible transfer-switch models). This back up
generator model CARB approved, available to California residents.




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

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    Model:  PSS21LS1-17
    Price:  $13,965.50
    Available Options:
    Fuel Type:
    Residential Shipment?:

    Model Specs



    Manufacturer: Winco
    Model #: PSS21-17
    Color: Tan
    Enclosure: Steel
    Engine Make: General Motors
    Transfer Switch Included?: No
    Price: $13,965.50


    Output
    Rated Power: 25000 Watts
    Phase: 3
    Frequency: 60 Hz
    Voltage: 120/240
    Rated Amps: 75 @ 240 Volts
    Rotor Poles: NA
    Mainline Circuit Breaker: 100 Amps


    Motor/Performance
    Engine Type: Inline 4-Cylinder
    Intake Method: Carburetor
    Cylinder Block: NA
    Cubic Inches/Liters: 181/3.0
    Number of Cylinders: 4
    Compression Ratio: NA
    Lubrication Method: Pressurized
    Valve Arrangement: Overhead (OHV)
    Engine Cooling: Liquid
    Fan Type: Belt-Driven
    Engine rpm: 1800
    Governor System: Electronic
    Ignition System: Electronic
    Starter Voltage (DC): 12
    Battery Required (Volts/Cold-Cranking Amps): 12/650
    Startup Delay (After Power Interruption): 10 Seconds
    Engine Warm-Up Duration: NA
    Engine Cool-Down Period: 5 Minutes
    Fuel Type: Liquid Propane(LP)/Natural Gas(NG)
    Fuel Consumption (LP @ 50% Load): 2.2 Gallons/Hour
    Fuel Consumption (LP @ Full Load): 4.5 Gallons/Hour
    Fuel Consumption (NG @ 50% Load): 189 Cubic Feet/Hour
    Fuel Consumption (NG @ Full Load): 360 Cubic Feet/Hour


    Convenience Features
    Automatic Voltage Regulation: Yes
    Low-Voltage Shutdown: No
    High-Voltage Shutdown: No
    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: No
    Incorrect-Wiring Protection: No
    Mainline Circuit-Breaker Protection: Yes
    Safety Fusing: NA


    Measurables
    Weight: 926 lbs
    Dimensions (Inches): 58.5L x 31W x 38H
    Decibels (@ 7 Meters/23 Feet): NA
    Compliance: 50-State US


    Additional Features
    Single-bearing rotating-field generator
    Programmable auto test (exercise) mode
    Unbalanced load protection
    Sleep and fuel-saving economy modes
    Sine wave bearing +/-1.5% distortion
    Motor-starting capacity up to 8.0 horsepower
    Quiet muffler and enclosure limit noise levels



    Warranty


  • 2-year or 1000-hour generator warranty
  • 3-year 3500-hour engine 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

    30-Amp 3-Phase Heavy-Duty Commercial-Grade by Asco:
    Asco #300/30-19I 3-Phase Indoor Model
    Asco #300/30-19O 3-Phase Outdoor Model


    70-Amp 3-Phase Heavy-Duty Commercial-Grade by Asco:
    Asco #300/70-19I 3-Phase Indoor Model
    Asco #300/70-19O 3-Phase Outdoor Model


    100-Amp 3-Phase Residential and Light-Duty by GE/Zenith:
    Zenith #ZTX100-17I 3-Phase 120/240-Volt Indoor Model
    Zenith #ZTX100-17O 3-Phase 120/240-Volt Outdoor Model


    104-Amp 3-Phase Heavy-Duty Commercial-Grade by Asco:
    Asco #300/104-19I 3-Phase Indoor Model
    Asco #300/104-19O 3-Phase Outdoor Model


    150-Amp 3-Phase Heavy-Duty Commercial-Grade by Asco:
    Asco #300/150-19I 3-Phase Indoor Model
    Asco #300/150-19O 3-Phase Outdoor Model


    200-Amp 3-Phase Residential and Light-Duty by GE/Zenith:
    Zenith #ZTX200-17I 3-Phase 120/240-Volt Indoor Model
    Zenith #ZTX200-17O 3-Phase 120/240-Volt Outdoor Model


    200-Amp 3-Phase Heavy-Duty Commercial-Grade by Asco:
    Asco #300/200-19I 3-Phase Indoor Model
    Asco #300/200-19O 3-Phase Outdoor Model


    230-Amp 3-Phase Heavy-Duty Commercial-Grade by Asco:
    Asco #300/230-19I 3-Phase Indoor Model
    Asco #300/230-19O 3-Phase Outdoor Model


    260-Amp 3-Phase Heavy-Duty Commercial-Grade by Asco:
    Asco #300/260-19I 3-Phase Indoor Model
    Asco #300/260-19O 3-Phase Outdoor Model


    400-Amp 3-Phase Residential and Light-Duty by GE/Zenith:
    Zenith #ZTX400-17I 3-Phase 120/240-Volt Indoor Model
    Zenith #ZTX400-17O 3-Phase 120/240-Volt Outdoor Model


    400-Amp 3-Phase Heavy-Duty Commercial-Grade by Asco:
    Asco #300/400-19I 3-Phase Indoor Model
    Asco #300/400-19O 3-Phase Outdoor Model


    600-Amp 3-Phase Heavy-Duty Commercial-Grade by Asco:
    Asco #300/600-19I 3-Phase Indoor Model
    Asco #300/600-19O 3-Phase Outdoor Model



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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.