The WINCO 55PTOC4-18 55kW 3-Phase 277/480V PTO Generator delivers professional-grade power output for agricultural, industrial, and commercial operations that demand uncompromising reliability. Built in the USA, this unit transforms your tractor’s PTO horsepower into clean, utility-quality electricity capable of running heavy machinery, irrigation systems, or entire facilities with efficiency and confidence.

Operating at 540 RPM PTO input, the 55PTOC4-18 produces 55,000 surge watts and 46,400 continuous watts at 277/480V three-phase, requiring a 110 HP tractor for full capacity. The brushless industrial alternator features an AS440 automatic voltage regulator (±1%), maintaining stable output and less than 5% total harmonic distortion (THD) — delivering smooth, consistent power for sensitive electronics and industrial systems alike.

Engineered for longevity, Winco’s cast-iron gearcase has been field-proven for over 60 years of dependable performance. The double-layer concentric stator winding, 2/3-pitch rotor, and Class H insulation ensure efficient heat dissipation, optimal electrical performance, and long service life. A large 3.5-inch frequency meter makes PTO speed management simple, while the IP23-rated protection shields internal components from debris and moisture in rugged conditions.

This model includes a 350A full-power Anderson receptacle (plug included) for high-capacity connections, a bonded neutral, ground lug, and built-in frequency meter for safe, code-compliant operation. Compatible with Category 2 three-point hitches or PTO trailers, the 55PTOC4-18 is as versatile as it is powerful. Every unit is 100% factory load-tested and backed by a 3-year commercial warranty, reflecting Winco’s commitment to durable, American-made craftsmanship that stands the test of time.