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Voltmaster PTO30/25M - 25 kW Tractor-Driven PTO Generator (540 RPM)

Voltmaster Electric Generators and Accessories
Model: PTO30/25M
(Based on expert analysis, manufacturer ratings and customer reviews)
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Run Watts
Rated Watts
Surge Watts
Starting Watts

Product Video Disclaimer: "PED is not responsible for any variances from the product in this video and the item you purchase. Please review all product specs prior to purchase."

Convert Your Tractor Into a Generator
Use your tractor engine to generate electricity
Requires at least 50 PTO HP

Multiple Applications
Generate electricity to power tools on the farm or ranch
Backup your home, barn or buildings during a power outage

3600 RPM Brushless Alternator
Produces clean and safe electricity for sensitive electronics

Smooth Wave™
Provides <6% total harmonic distortion

Thermal/Magnet Circuit Breaker
Protects generator and appliances from overload

Standard Voltmeter
Makes it easy to monitor your power usage

Standard 1-3/8” Six Spline w/ Helical Gears
Connect tumbling bar (sold separately) between tractor and PTO

PTO safety shield

Full power 240-volt receptacle (Includes connector)

Lifting eye

Product Must be mounted to a trailer or concrete slab.
Product Specs
120/240 Single-Phase
60 Hertz
Surge Watts
30000 Watts
Rated Watts
25000 Watts
Rated Amps
104 @ 240 Volts (Single Phase) Amps
Voltage Meter
Tractors HP
50 HP
540 RPM
Grade Type
NEMA 5-20R - Wall-Type
NEMA L14-30R
Full Power Receptacle
303 Pounds
Product Style
PTO Generator
Product Length
29 Inches
Product Width
13.75 Inches
Product Height
21 Inches
Consumer Warranty
5 Years
Commercial Warranty
5 Years
Download Documents

NEMA 5-20R (Wall-Type)
NEMA L14-30R

Full Power Receptacle
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*Ask Mike about the Voltmaster PTO30/25M. Sorry, no repair questions:




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  3 Questions
Q: How does the voltmast PTO 30/25M-25kw generator compare to the Winco 25PTOC-3 ?
The voltmaster is brushless would thet be a better type?

by Robert Horton from Texas on January 08, 2013

A: Brushless is only better from a maintenance perspective. I'm old school - I prefer brushes due to waveform quality and no field excitation issues to speak of. If the machine is turning, it's producing power. In your case, if hours of run time are significant, you may be better brushless.
by Mike, Product Expert
Q: I see where you recoment units looked at and give simaler units to look at. I dont see where you recoment this unit. Voltmaster PTO 30/25M? this unit is brushless, would that be better than a brush type generator. I have a Kubota M6040 with 57 PTO hp
by Robert Horton from Texas on January 08, 2013

A: We don't recommend all units - only 3 machines in each class/style. This unit is very well built and is brushless. We'd have no reservations in sliding you into a machine like this one.
by Mike, Product Expert
Q: Jim,
I have a 43HP 4CYL Kubota. I know this size will handle my needs, but will my tractor handle it?

by ED ZIRINGER from Virginia on July 17, 2012

A: This unit requires a 50hp or larger engine to operate properly. You may want to look towards a slightly smaller unit.
Something along the lines of the IMD 22Kw unit would be suitable. That model number is PTO 22-S.

by Mike, Product Expert
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Free Freight
  • Ships via Semi-Truck
  • Curb Side Delivery
  • Free to Lower 48 States
  • Standard Rates to Alaska, Hawaii
We currently CANNOT ship this product to California or any destination outside of the United States
Lift Gate Services
  • Safely Lowers Products Off the Truck
  • Requires Special Hydraulic Lift
  • Free Lift Gate
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Estimated Ship Date on December 19, 2017

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