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Winco RP25 Generator (20kW)

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2,820.00 LBS

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The Winco Redi-Power RP25 mobile diesel generator offers a rugged 2.2L Isuzu diesel engine, up to 20 kW of power, a 4-position voltage selector switch, standard receptacle panel, a premium DOT approved trailer, and a 55 gallon fuel tank to keep your jobsite going for over 24 hours.


Electrical Features

  • Four position voltage selector switch provides true Line-Line and Line-Neutral voltages for all common single and three phase voltages. (Three position switches offered on other brands compromise the Line-Neutral voltage in at least one position.)
  • Single phase double-delta connection balances the single phase load.
  • Oversized industrial generator end provides a full 20kW in single phase instead of a 20%-30% derate that is common.
  • Generator is rated for 125/40o C. at standby rating.
  • +/-1% automatic voltage regulation.

Control Panel

  • All digital control panel eliminates analog gauges and allows the operator to view the voltage of multiple legs simultaneously.
  • All shutdowns and warnings are logged to provide maintenance personnel with an important diagnostic tool.
  • Digital control panel disconnect switch preserves battery during storage.
  • Control system comes with standard two-wire start controls that work with most common transfer switches and other starting devices.
  • Dual Square D thermalmagnetic circuit breakers to provide quick and reliable overcurrent protection.
  • Three independent safety kill switches prevent operators from changing voltages during operation and accessing the terminal block while the generator is operating.
  • Camlock connection is now included standard.


  • Premium DOT approved single axle trailer.
  • 2" ball coupler is standard; 2 5/16" coupler or 3" pintle available upon request.
  • Electric brakes are standard.
  • Torsion bar suspension.
  • Rear leveling jacks are included standard.
  • Steel bolt-on trailer fenders are sturdy enough to stand on and easy to repair after a mishap.
  • Four trailer tie down points.
  • Galvaneal steel housing (14 gauge) with powder coat paint for strength and corrosion resistance.
  • Steel single wall 55 gallon fuel tank for up to 24 hours runtime.
  • Identically keyed doors.
  • Single point lifting eye.
  • Optional integrated cable/tool box available.

Other Features

  • Standard receptacle panel (4xNEMA 5-20R, 2x50A twist-lock, 1x shore power, 1x terminal block, camlock set).
  • Standard jacket heater and battery charger.


RP25 Spec Sheet

RP25 Manual

RP25 Drawing

RP25 Trailer Drawing

Standby Power:
20 kW / 25 kVA
Prime Power:
18 kW / 22.5 kVA
Amperage - 3 Phase:
69A @ 208V, 60A @ 240V, 30A @ 480V
Amperage - 1 Phase:
70A @ 240V (at terminal block)
Voltage - 3 Phase:
208, 220, 240, 416, 440, 460, 480V Switchable
Voltage - 1 Phase:
120, 139, 208, 220, 240V Switchable
Voltage Regulation:
Power Factor:
0.8 @ 3 Phase, 1.0 @ 1 Phase
4-pole, Revolving field, Single bearing, Brushless, 1800 rpm
Receptacles (Single Phase):
2-20A 120V GFCI Duplex, 2-50A 120/240V Twistlock, 1-Terminal Block for Full Connection with Safety Shut Off
Sound Level:
65.5 dBA
Isuzu 4LE1, 2.2 liter, 4-cylinder, Natural aspiration, Liquid-cooled, Direct Injection, 85 x 95 Bore x Stroke
Engine Starting System:
BCI 24 650 CCA (Not included)
Fuel / Tank Capacity:
Diesel / 55 gallons
Fuel Consumption:
1.8 gph @ full load, 0.9 gph @ half load
EPA Tier 4 Interim Flex
Dimensions LxWxH (inches):
129” x 57” x 73”
Approximate Weight:
2820 lb.
Engine/Generator Warranty:
1 year / 1000 hours

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