Phase Converters

Cedarberg Phase Converters and Rotary Phase Converters permit operation of three phase motors on single phase current. Cedarberg Rotary Phase Converters and Static Phase Converters are used where three phase current is not available and the cost to bring three phase power if prohibitive.

We at Cedarberg Industries are proud of our Phase Converters and Rotary Phase Converters and stand behind these products.

  • Correctly sized and properly installed a Cedarberg Static Phase Converter and Rotary Phase Converter should provide years of trouble free service.
  • Cedarberg Phase Converters are designed to start motors within a specific horsepower range.
  • Cedarberg Rotary Phase Converters are designed to start any motor from fractional horsepower up to the nameplate rating.
  • Cedarberg Phase Converters and Rotary Phase Converters come ready for installation. Electrical installation hardware are not provided with the -Static and Rotary Phase Converters.
  • Instant reversal motors present no problem to the Static Phase Converter and Rotary Phase Converter. For Series I Static Phase Converters installation we recommend that frequent reversing not be done for extended periods of time.
  • Some foreign and special motors require less starting current and may require a Static Phase Converters one size smaller than normal.
Phase Converters… 3 phase power is only a Converter away.
Metal & Woodworking Application & Compatibility Guide
Miscellaneous Machinery Application & Compatibility Guide
Phase Converter Catalog
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Pricing

Which Converter Do I Need?

Static Type Phase Converters
  • Series 1B Phase Converter

  • Series III Phase Converter-Discontinued

Rotary Type Phase Converters
  • Standard Duty Rotary Phase Converter

  • Heavy Duty Rotary Phase Converter

Features common to the Static Phase Converters and Rotary Phase Converters
  • Instant Reversing

  • Operate on 50/60 HZ

  • Run more than one machine

  • Series 1B Static Phase Converters Permits Starting of 220V Motors on 220V current

  • Standard Duty Rotary Phase Converters and Heavy Duty Rotary Converters produce balanced 3 phase power for for maximum motor efficiency

Series IB Phase Converter

Phase Converter

CAT NO. QTY DESCRIPTION CODE PRICE
8000-100 1 MODEL 1100B 1/4-1/2 HP UE $180.00
8000-101 1 MODEL 1200B 1/2-1 HP UE $185.00
8000-102 1 MODEL 1300B 1-3 HP UE $190.00
8000-103 1 MODEL 1400B 3-5 HP UE $215.00
8000-104 1 MODEL 1500B 5-7 1/2 HP UE $245.00
8000-105 1 MODEL 1600B 7 1/2-10 HP UE $260.00

Your selection must be based on the horsepower of the largest motor to be started. Once running, smaller motors can be started one at a time.

Series 3 Phase Converter-Discontinued

Series 3

CAT NO. QTY DESCRIPTION CODE PRICE
8000-012 1 MODEL 3100 1/4-1/2 HP UD discontinued
8000-013 1 MODEL 3200 3/4-1 1/2 HP UD discontinued
8000-014 1 MODEL 3300 2-3 HP UD discontinued
8000-015 1 MODEL 3400 4-6 HP UD discontinued
8000-016 1 MODEL 3500 7 1/2-10 HP UD discontinued
Standard Duty Rotary Type Phase Converters

Standard Duty Rotary Type Phase Converters

CAT NO. QTY DESCRIPTION CODE PRICE
8100-051 1 MODEL 10A 1 HP UA $630.00
8100-052 1 MODEL 30A 3 HP UA $775.00
8100-053 1 MODEL 50A 5 HP UA $875.00
8100-054 1 MODEL 75A 7 1/2 HP UA $1,185.00
8100-055 1 MODEL 100A 10 HP UA $1,340.00
Heavy Duty Rotary Type Phase Converters

Heavy Duty Rotary Type Phase Converters

CAT NO. QTY DESCRIPTION CODE PRICE
8100-001 1 MODEL 10 1 HP UB $1,236.00
8100-002 1 MODEL 30 3 HP UB $1,390.00
8100-003 1 MODEL 50 5 HP UB $1,650.00
8100-004 1 MODEL 75 7 1/2 HP UB $1,960.00
8100-005 1 MODEL 100 10 HP UB $2,270.00

Your selection must be based on the horsepower of the largest motor to be operated. Smaller motors may be started while the motor within the converter’s range remains running.

Application:

Cedarberg Static Phase Converters are designed to start motors within a specific horsepower range. Smaller motors may be started one at a time, once a motor within the converter’s horsepower range is running, provided that the smaller motors are wired into the same circuit.

Cedarberg Rotary Phase Converters are designed to start any motor from fractional horsepower up to the nameplate rating. If the motor on the equipment is larger than the phase converter’s nameplate rating, a phase converter of the correct size will need to be purchased. Do not attempt to start a motor that is too large for the converter or damage could occur.

Features:

Instant reversal motors present no problems to these converters. For Series 1B and Series 3 converter installations, we recommend that frequent reversing not be done for extended periods of time. Our Series 1B and Series 3 units will start more than one machine, as long as each motor is within the horsepower range of the converter. When multiple three phase motors are on the same circuit and not within the range of the converter, the following steps must be taken:

A) Start the largest motor first. (This motor must be within the converter’s range.)
B) While allowing this motor to idle, additional, smaller motors may be started one at a time.
C) The motor that is within the range of the Series 3 converter must remain running throughout the duty cycle of the smaller motors. With the Series 1B converter, the motor that is within the range of the converter may be turned off once the smaller motor is running and up to speed.
D) Rotary Phase Converters are capable of starting any motor from fractional horsepower up to their nameplate rating. They are designed to run total horsepower loads up to three times the nameplate rating on Heavy Duty models and up to two times the nameplate rating on Standard Duty models.

Two-speed electric motors can be operated without difficulty, provided both speed ranges lie within the converter’s horsepower range. Some foreign and special motors require less starting current and therefore may require a static converter one size smaller than normal.

Your selection must be based on the largest horsepower motor to be operated. This converter is designed to operate total horsepower loads up to 2 times the nameplate rating.

Designed for light starting & running loads (such as drill presses, mills, grinders, etc…) where generated 3 phase power is preferred.

The largest horsepower motor you intend to start should not exceed our converter’s nameplate rating. Our converters are designed to run horsepower loads up to 3 times the nameplate rating.

Designed for medium to heavy starting & running loads (such as gear head lathes, flywheel & hydraulic applications, CNC machinery, etc…) when maximum motor efficiency is required.