The WINCO 55PTOC4-21 55kW 3-Phase 346/600V PTO Generator is the ultimate high-voltage power solution for heavy-duty agricultural, industrial, and commercial operations. This rugged, American-made generator converts your tractor’s PTO power into reliable, utility-grade electricity, making it ideal for running large motors, irrigation pumps, or full-facility systems where dependable three-phase power is essential.

Operating at 540 RPM PTO input, the 55PTOC4-21 produces 55,000 surge watts and 46,400 continuous watts at 346/600V three-phase, requiring a 110 HP tractor to reach full-rated output. The brushless industrial alternator with AS440 automatic voltage regulation (±1%) delivers steady, precise output with less than 5% total harmonic distortion (THD) — ensuring clean, consistent power for both sensitive control systems and high-demand electrical equipment.

Built for strength and longevity, the 55PTOC4-21 features Winco’s cast-iron gearcase, a proven design refined over 60 years for unmatched reliability. The double-layer concentric stator winding, 2/3-pitch rotor, and Class H insulation ensure exceptional performance under continuous load. The large 3.5-inch frequency meter makes it easy to maintain proper 60 Hz operation, while the rugged IP23-rated enclosure protects against moisture and debris in tough environments.

For professional-grade connectivity, this model includes a 350A full-power Anderson receptacle (plug included) for high-capacity output. A bonded neutral, ground lug, and frequency meter come standard, ensuring safety and compliance. Compatible with Category 2 three-point hitches or PTO trailers, this model offers flexible mounting options for field or stationary use. Proudly assembled in the USA and 100% factory-tested, the 55PTOC4-21 is backed by Winco’s 3-year commercial warranty, providing the power and dependability you can trust season after season.