Generac 5887


Automatic Standby Generator, 20LP/18NG kW

5887 498161
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ItemAutomatic Standby Generator
Engine Cooling MethodAir
kW20 LP/18 NG
kVA Rating20 LP/18 NG
Enclosure MaterialAluminum
Fuel TypeNatural Gas/ LP
Engine BrandGenerac OHVI
Engine Size999cc
Engine RPM3600
Amps @ 120/240V, 1 PhaseLP 83.3 / 75 NG
NG Consumption @ Half Load294 cu. ft./hr.
LP Consumption @ Half Load2.9 gph
Sound Level dBA66
Automatic Volts RegulationYes
Battery IncludedNo
12VDC Battery ChargerYes
Battery Requirements525 CCA
Engine (Block Heater)Yes or No
Fault Indicator LightsYes
Fuel NPT Pipe Connection Sz.3/4"
High Temp. AlarmYes
Low Oil Pressure AlarmYes
Min. Gas Pressure @ Generator (In WC)5 to 7/10 to 12
Over Crank ProtectionYes
Power Factor1
Repeat of Exercise Cycle7 Days
Run Time Hour MeterYes
Main Circuit BreakerFuse Built Into Controller; Circuit Breakers are Located in the Transfer Switch
Over SpeedYes
Includes 1 Ft Flexible Fuel Line Connector
Standards UL, CSA, NEMA, EGSA
Weight 516.000000


Automatic Standby Generator, Engine Cooling Air, 20 LP/18 NG kW, 20 LP/18 NG kVA Rating, Voltage 240V, Height 29 In., Width 25 In., Length 48 In., Enclosure Material Aluminum, Fuel Type Natural Gas/ LP, Generac OHVI Engine Brand, Engine Size 999cc, Engine RPM 3600, Amps @ 120/240V, 1 Phase LP 83.3 / 75 NG, NG Consumption @ Half Load 294 cu. ft./hr., LP Consumption @ Half Load 2.9 gph, 60 Hz, Sound Level dBA 66Automatic Volts Regulation Yes, Battery Included No, 12VDC Battery Charger Yes

  • Note: Generators are not designed as a primary power source. For backup only.
  • California Proposition 65 Warning: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm.

Air- and Liquid-Cooled Automatic Standby Generators
  • Air-Cooled
  • Include 1-ft. flexible fuel line connector and composite mounting pad for easy installation. Electrostatically applied powder paint. Models equipped with aluminum housing are designed to withstand highly corrosive environments.
  • Feature mainline circuit breaker and solid-state, frequency-compensated voltage regulation. All input connections are in a single area. Include 2A static battery charger and battery rack for 12V battery. Battery required, not included. Require local permits for gas piping, concrete foundation, and electrical inspection. 6FDL8 includes switch.
  • Generac OHVI industrial engine True Power Technology (except 11C856) for smooth, consistent power Protect priority circuits or the entire panel
  • Min. battery requirement: 525 CCA Built-in 7-day exerciser For residential or commercial applications as backup only Run on natural (NG) or liquid propane (LP) gas Require RTS transfer switch, sold separately, this page

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