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Generac 5870 Guardian™ 8kW Standby Generator System

The Guardian 8 kW Emergency Power System is the smallest home standby generator offered by Generac Power Systems with their OHVI industrial engine.

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Fully Automatic Operation

Generac OHVI Air-Cooled Engine
Features plateau honed cylinder walls and plasma-moly rings
Full pressure lubrication system w/ 2 year oil change interval
Aids in cooling the engine for longer life

Operates On Clean Burning, Efficient Natural Gas or LP (Vapor)

Skewed Rotor Design For Smooth Output Waveform "Clean Power"
Automatic voltage regulator equipped for +/- 1% regulation

Nexus™ Digital Controller Monitors & Controls All Functions
Provides system status - compatible with Nexus™ wireless monitors

Sound Attenuated Weather Proof Enclosure
Attractive styling with lockable access doors
Incorporates electrostatically applied epoxy paint technology
Sound dampening enclosure limits sound pressure to a low 62dB(A)

Includes 10 Circuit Load Center Style Auto Transfer Switch (100A)
5' Pre-wired External Connection Box From Wall to Generator
30' Pre-Wired Indoor Conduit From Switch To External Box
2' Pre-Wired Indoor Conduit From Transfer Switch To Main Panel
Composite mounting pad and 1’ flexible fuel line connector

Listed to UL2200 Engine/Generator Standard for Safety


  Model Number: 5870
  UPC: 696471058703
  Manufacturer: Generac Guardian
  Made in USA: Yes
  Brand: Generac OHVI
  HP/CC: 410 cc
  Consumer Engine Warranty: 3 Years
  Commercial Engine Warranty: 3 Years
  Engine RPM: 3600 RPM
  Low Oil Alert/Shutdown: Yes
Product Specs
  Voltage 120/240 Single-Phase
  Frequency: 50,60 Hertz
  Cooling System Air Cooled
  Fuel Type LP/Natural Gas
  NG Power Capacity 7,000 Watts
  LP Power Capacity 8,000 Watts
  NG Consumption (50% Load) 77 ft³/hr
  LP Consumption (50% Load) .94 gallons/hr
  Rated Amps: 33 Amps @ 240 Volts (Single Phase)
  Decibel Rating @ 7m: 62 db(A)
  Enclosure Steel
  Mounting Pad Composite (Included)
  Transfer Switch: Automatic (Included)
  Transfer Switch Amperage: 100-Amps
  Transfer Switch Style Pre-Wired (10-Circuit)
  ATS Service Disconnect: No
  Transfer Switch Circuits: 3  - 15A/120V
3  - 20A/120V
1  - 20A/240V
1  - 30A/240V
  Battery: Not Included (350 CCA)
  UL Listed Yes
  Weight: 350 Lbs. (158.76 kilograms)
  Dimensions: 48"L x 25"W x 29"H
(121.92 x 63.50 x 73.66 cm)
  Consumer Warranty: 3 Years
  Commercial Warranty: 3 Years


1.Conntek 30-Amp (4-Prong 50-Foot) Generator Power Cord
2.Ultimate Portable Generator Accessory Kit
3.U.S. Wire Arctic/Tropic 50-Foot Extension Cord (12-Gauge)
4.Reliance Controls Power Transfer Kit for Portable Generators (10 Circuit)

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