Pro-Line Rotary Phase Converters

CNC Rotary Balanced, by design!  PRO-LINE exceeds industry performance standards; powering sensitive modern CNC and traditional three phase equipment.  Pro-Line goes further with efficient removable back plates, three line breaks, digital start protection, soft start, full three line break; all with simple installation.  Reliability is important and supported with a 10 year warranty.   In true American form we design Pro-Line to work; everyday, for a very long time.

Do right by your equipment and feed it the balanced power Pro-Line is engineered to offer.

Best Applications: Mills, Lathes, Dough Mixers, Table saws, typical motors, resistive and inductive loads.  Join the NAPCES family and get back to work.

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Control Panel Features

  • Built-In Motor Starter with Start/Stop Switch
  • Digitally Controlled & Protected Start Circuit
  • Complete Phase Power Failure Protection
  • CNC Voltage Balancing
  • Power “ON” Indicator Light
  • Easy Installation
  • Distribution Block Connections
  • Power Factor Corrected
  • Made In the USA
  • Lifetime Warranties

Idler Motor Features

  • Custom Made Rotary Phase Converter Generators
  • Low Impedance/High Efficiency Design
  • ODP (Indoor) Standard, TEFC (Weatherproof) Available
  • Custom Copper Windings and Rotor
  • Made by ABB / Baldor Electric USA
  • Made in America
  • Sealed Bearings

Available Upgrades

  • UL Listed Control Panels
  • Wireless Remote Starter
  • Wired Remote Switches
  • 480 Volt Control Panels
  • Floor Mounting Kits
  • Automatic Controls
  • Power Time Delays
  • Plugs and Outlets

Pro-Line Model Comparison Chart

Quick Sizing Chart for Pro-Line Rotary Phase Converters 

Phase Converter Model Motor Loads (Horsepower) CNC, Resistive & Inductive Loads Phase Converter Model
Easy Med Hard Very Hard Total Amps Total VA Total kW Spindle HP
 PL-3 2.5 2 1.5 1 4 1.4 1.1 1.5 PL-3
 PL-5 3 3 2 1.5 7 2.4 1.7 2.5 PL-5
 PL-7 5 5 3 2.5 11 5 2.2 3 PL-7
 PL-10 7.5 6 5 4 15 6 3.7 5 PL-10
 PL-15 10 7.5 6 5 20 8 5.6 7.5 PL-15
 PL-20 15 12 10 7.5 25 11 7.7 10 PL-20
 PL-25 20 15 12 10 30 15 9.5 12 PL-25
 PL-30 25 20 15 10 37 20 11.8 15 PL-30
 PL-40 30 25 20 15 50 25 15.5 20 PL-40
 PL-50 40 30 25 20 61 30 21.5 25 PL-50
 PL-60 50 40 30 25 72 36 26.5 30 PL-60
 PL-80 60 50 40 30 100 42 29.6 40 PL-80
PL-100 75 60 50 40 122 48 37.3 50 PL-100
Motor load chart

Videos about Installation and using the Sizing Tables

Complete Details of Features

Built-In Motor Starter with Start/Stop Switch

• Self-contained built-in magnetic motor starter
• Money saving feature because every rotary phase converter needs a starting mechanism
• Start/Stop switch ideally located on the front of the rotary phase converter control panel for easy access and where it should be

Digitally Controlled & Protected Start Circuit

• The latest in solid state technology
• Patented Differential Voltage Sensing
• Safety Timer – times out to eliminate capacitor failure
• Our Pro Line Rotary Phase Converters are the only phase converters where this technology is available


Complete Phase Power Failure Protection

• Built in protection protects the rotary phase converter and your equipment in the event of a power loss
• During a black out, the Pro-Line Rotary Phase Converter shuts down all 3 legs of power
• Some brands only shut down the generated leg and can cause single phasing when power resumes

CNC Voltage Balancing

• CNC Voltage Balancing allows you to run even the most sensitive machines
• Voltage balanced phase-to-phase to within 5% or better
• The Pro Line Rotary Phase Converter offers the largest voltage balanced range on the market

Start/Stop Switch for PL-60

Power “ON” Indicator Light

• Shops are a noisy place. This bright light on the front panel lets you know your Pro Line Rotary Phase Converter is up and running.

Easy Installation

• Removable back plate design makes the rotary phase converter control panel enclosure light and easy to install
• Terminal block connections make wiring a snap
• Knockout placements on on the bottom and right side allows easy wiring access

Power Distribution/Terminal Connection

• Simply strip, place and tighten wires
• Generously over-sized power distribution blocks make wiring a Pro Line Rotary Phase Converter a snap

Made In the USA

• Pro Line Rotary Phase Converters are proudly made in Wisconsin
• Built by a UL 508A Panel Shop (Not every panel is UL listed)
• Clean design makes for easy inspections
• Din rail mounted components and twist and release capacitors

Custom made Generators by ABB/Baldor USA

• Purpose built for maximum efficacy
• Custom copper windings and rotor
• ISR magnetic Windings – Immune to Voltage Spikes

Low Impedance/High Efficiency Generator Design
• Designed to allow for the maximum current and voltage balance
• Low resistance produces high efficiency
• Built to run cool and quiet

Please call us at 877-545-2926 or use our contact form …

if you have any questions about our products, features or sizing!