SKU: 8703643246

Generac XG04045CNAC 45kW LC 3 Phase Automatic Standby CARB Generator

$11231.55 $12479.50
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Description

Generac XG04045CNAC 45kW LC 3 Phase Automatic Standby CARB 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 CARB - XG04045CNAC
  • Owners Manual
Warranty
  • 5-Year Limited Factory Warranty
  • 30 Day Satisfaction Guaranteed
Specifications
SKU XG04045CNAC
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: 8703643246

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4.0 ★★★★★
Based on 28 reviews
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Product Reviews
B
Verified Purchase
bicyclemayhem
Lowell, US
★★★★★ 4
Mostly great, except one little annoyance
Color: Black&Silver, Color: Black&Silver
Pros- lightweight, small, very accurate, easy to clean, timer included. Cons- I use this to brew espresso on my Breville Touch and to get an accurate reading, you have to place something flat (structured) under the scale. Otherwise the reading just jumps all over the place. I know lot of espresso machines have the same base, so this might be an issue for some! This is my reason for 4/5 stars. It’s an easy fix, it’s just kind of annoying. Value for the price seems to be on point. It’s easy to clean. It has a timer as well as scale (nice for espresso). Buttons work the first time you push them. That’s it that’s all
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 31, 2026
F
Verified Purchase
Fanny Chan
Boise, US
★★★★★ 5
Great Coffee at Home with Beautiful Design!
Color: Beige, Color: Beige
Absolutely love this espresso machine! It’s easy to use, heats up quickly, and makes rich, flavorful coffee with nice crema. The milk frother works great for lattes and cappuccinos, and the design looks beautiful on my countertop. Great value for the price — highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
Y
Verified Purchase
Yordanis Almaguel
Pawtucket, US
★★★★★ 5
Good option 👌
Color: Silver
The Neretva Máquina de café expreso de 20 bares stands out for its compact and elegant stainless steel design, making it ideal for anyone who wants to prepare barista-style coffee at home. Its 20-bar pressure system delivers rich espresso with excellent aroma and crema, while the steam wand allows you to create smooth and consistent milk foam for lattes and cappuccinos. The LED display and practical size make it a modern, functional, and user-friendly option for everyday use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026
M
Verified Purchase
Matt H.
Boise, US
★★★★★ 5
Great little espresso machine for home
Color: Silver
I purchased this as a test case for home latte making. Considering the price, it is an excellent starter machine. The learning curve is not very dramatic and it is relatively easy to maintain. Unit is attractive and build quality is very good. Be sure to use filtered water. I have been using it regularly for months now and it has proved reliable. This has a very small footprint and would fit on most countertops. If you are looking for a starter espresso maker, this is a great option until you want to get really serious.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
L
Verified Purchase
Lyndsey
Dallas, US
★★★★★ 4
Pretty good machine!
Color: Silver
I’ve had the machine for about a month now and I like it! There is a learning curve but once you figure it out it’s pretty easy to use. For reference: I make a double latte every morning. I use 150 mLs of oat milk and froth/steam the milk for about 40-45 seconds. I refill the water tank weekly. Star deduction because the manual that comes with the machine isn’t great. The FAQ table is ambiguous and the entire manual is poorly written.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026

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