SKU: 30311448257

Generac XG04045CNAX 45kW LC 3 Phase Automatic Standby Generator

$10660.05 $11844.50
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Description

Generac XG04045CNAX 45kW LC 3 Phase Automatic Standby GeneratorProduct Downloads Brochure Specifications Owner's Manual Wi Fi Manual Warranty Features Power Zone 410 Controller, NFPA 110 Capable Cellular Connectivity for Mobile Link and Fleet Quiet Operation Corrosion Resistant Enclosure & Frame 5 Year 2,000 Hour Limited Warranty Hi Motor Starting, Surge Capacity Fuel Efficiency Controller Selectable Fuel Type Natural Gas or Propane Vapor 1 Phase or Configurable 3 Phase Voltage Output Single Side Regular

Product Downloads

Brochure

Specifications

Owner's Manual

Wi-Fi Manual

Warranty

Features
  • Power Zone 410 Controller, NFPA 110 Capable
  • Cellular Connectivity for Mobile Link and Fleet
  • Quiet Operation
  • Corrosion Resistant Enclosure & Frame
  • 5 Year/2,000 Hour Limited Warranty
  • Hi Motor Starting, Surge Capacity
  • Fuel Efficiency
  • Controller-Selectable Fuel Type - Natural Gas or Propane Vapor
  • 1-Phase or Configurable 3-Phase Voltage Output
  • Single-Side Regular Maintenance Access
  • EPA & SCAQMD Exhaust Emissions Certified
  • As close as 18 in (457 mm) offset distance from structure
What's in The Box
  • 45kW LC Automatic Standby Generator 3-Phase - XG04045CNAX
  • Owners Manual
Warranty
  • 5-Year Limited Factory Warranty
  • 30 Day Satisfaction Guaranteed
Specifications
SKU XG04045CNAX
Brand Generac
Generator Output
Voltage XG03245 XG04045
Natural Gas Liquid Propane
Power (kW) Current (A) Power (kW) Current (A)
120/240 1–Phase 32 133 32 133 40 40 139
208/120 3–Phase 32 111 32 111 40 40 120
240/120 3–Phase 32 32 40 40
480/277 3–Phase 32 32 40 40
Voltage Regulation
Type Electronic
Sensing All Phases
Regulation +- 1 percent
Governor Specifications
Type Electronic
Frequency Regulation Isochronous
Steady State Regulation +- 25 percent
Alternator System Specifications
XG03245 XG04045
1-Phase 3-Phase 1-Phase 3-Phase
Voltage Output 120/240 V Only 208/120 V; Configurable for 480/277 or 240/120 V with Optional Field-Installable VCC 120/240 V Only 208/120 V; Configurable for 480/277 or 240/120 V with Optional Field-Installable VCC
Circuit Breaker (CB) Size 150 A Not Included; Optional Field-Installable Kit 200 A Not Included; Optional Field-Installable Kit
Type Synchronous Synchronous
Rotor Insulation Class F F
Stator Insulation Class H H
Telephone Interference Factor (TIF) < 50 < 50
Bearings Sealed Ball Sealed Ball
Coupling Flexible Disc Flexible Disc
Excitation System Direct Direct
Engine Specifications
XG03245 XG04045
Make Generac
Model Inline 4 Cylinder
Cylinders 4
Displacement (L) 4.5
Bore 4.5 in
Stroke 4.25 in
Compression Ratio 9.9:1
Lifter Type Hydraulic
Intake Air System Naturally Aspirated
Temperature Derate 1.5% per every 5°C above 25°C (1.65% per every 10°F above 77°F)
Altitude Derate 1% per every 100 m above 183 m (3% per every 1000 ft above 600 ft)
Exercise Speed (RPM) 1,200
Operating Speed (RPM) 1,800
Cooling System
XG03245 XG04045
Coolant 50/50 (50% Ethylene Glycol)
Coolant System Capacity (L (US gal)) 11 (2.9)
Water Pump Belt–Driven
Fan Type Mechanical
Fan Quantity 1
Maximum Ambient Air Temperature (C (F)) 50 (122)
Fuel Types
XG03245 XG04045
Natural Gas Yes
NG Pressure (kPa (in. WC)) 0.87 – 3.48 (3.5 – 14)
Liquid Propane Yes
LP Vapor Pressue (kPa (in. WC)) 1.74 – 3.48 (7–14)
Fuel Type Configuration Controller-Selected
Fuel Shutoff Solenoid Standard, Dual
Fuel Consumption
Rated Load XG03245 XG04045
Natural Gas Liquid Propane Natural Gas Liquid Propane
(m3/h) (CFH) (m3/h) (CFH) (m3/h) (CFH) (m3/h) (CFH)
25% 4.8 169 8.3 2.2 5.2 184 10 2.6
50% 6.8 240 12.9 3.4 8.2 289 14.5 3.8
75% 9.5 335 15.8 4.2 11.1 392 17.7 4.7
100% 11.5 406 18.5 4.9 14 494 21.7 5.7
Electrical System
System Voltage 12
Battery Charge Alternator (A) 37
Battery Charger (A) 5
Recommended Battery (not included) Group 27R, 725 CCA Minimum
Maximum Allowable Battery Group 31R
GENERAC GUARDIAN SERIES 20KW GENERATOR FEATURES AND BENEFITS
This generator provides essential circuit power protection for your home during a power outage, ensuring that essential appliances maintain power. This standby generator is automatic and offers protection year-round, for less than the cost of central air conditioning.
Every Guardian Series home standby generator comes with Mobile Link™ Remote Monitoring. Remote Monitoring is FREE, and allows you to monitor the status of your generator from anywhere in the world. Use a smartphone, PC, or tablet to access generator information, such as the current operating status and maintenance alerts. By connecting your account you have access to authorized service dealers for fast, friendly, and proactive service.
Generac generators are ideal for weathering storms and power outages. Their automatic backup power gives you piece of mind that your home and appliances are protected.
Generac generators and engines are designed, engineered and assembled in the USA using domestic and foreign parts.
The Generac G-Force Engine is built to handle the stressors of generator use. This results in power that’s more reliable and requires less routine maintenance than competitor engines. Generac’s new G-Force engine is purpose built and pressure-lubricated. It features hydraulic lifters, which improve engine performance and extending the life of the product. (Hydraulic lifters only available on the 13 & 16 kW.)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 30311448257

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Becky
Lexington, US
★★★★★ 5
Great watch
Color: Blue, Color: Blue
Great quality, beautiful watch. The size is perfect. I am a woman and I like a good sized watch. Love it
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Reviewed in the United States on April 8, 2026
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Reynaldo alonzo
Birmingham, US
★★★★★ 5
Good quality looks great
Color: Blue
Looks great
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Reviewed in the United States on April 20, 2026
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Jose V.
Pawtucket, US
★★★★★ 5
Very nice and the price is great
Color: Blue
Looks a works great
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Reviewed in the United States on February 7, 2026
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Derrick Logan
Natrona Heights, US
★★★★★ 4
I like it
Color: grey, Color: grey
It’s not expensive but well made. The tack thing doesn’t spin. Idea for daily wear with a nice look to it. I gave it a 4 because the tact thing doesn’t spin and I like a larger watch face. All in all I may buy more as fashion watches for daily use.
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Reviewed in the United States on March 11, 2026
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Kevin Okeefe
Lowell, US
★★★★★ 5
Beautiful watch!
Color: silver black
Love it!! Great looking and excellent quality watch...looks like a Rolex Daytona. So far keeps perfect time.
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Reviewed in the United States on February 10, 2026

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