PL Series Phase Converters

Best For

Who needs the PL Series?

Choose the PL Series when your equipment has tight voltage balance requirements or sensitive electronic controls. The enhanced filtering reduces voltage ripple and harmonic distortion on the generated third leg, keeping CNC controllers, servo amps, and VFDs happy.

• CNC machining centers — Haas, Mazak, Fadal, Fanuc-controlled equipment
• CNC lathes and turning centers — requires <2% voltage imbalance
• Servo-driven equipment — press brakes with servo back gauges, automated feeders
• Laser cutters and plasma tables — sensitive to voltage noise
• Medical or lab equipment — any three-phase load requiring clean power
• Multi-axis machining — when multiple servo drives share the same converter

PL vs NL: What's Different?

The PL Series shares the same NEMA 4 steel enclosure, TEFC cast-iron idler motor, and lifetime warranty as the NL Series. The key difference is the output capacitor bank and filtering network:

• Enhanced capacitor bank — optimized for tighter voltage balance (<2% typical)
• Output line filtering — reduces harmonic content on the generated leg
• Voltage balance at light loads — maintains balance even at 25% load
• Better suited for variable loads — CNC machines cycle their loads constantly

For standard shop equipment like saws, grinders, and pumps, the NL Series is perfectly adequate and costs less. Save the PL for machines that demand it.

Key Features

• NEMA 4 steel enclosure — weatherproof and dustproof
• TEFC cast-iron idler motor — long service life, quiet operation
• Enhanced output filtering — tight voltage balance for sensitive electronics
• Lifetime transferable warranty
• Made in Phoenix, Arizona
• AutoStart option available