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Rotary Roto Phase Converter Hoist

Standard Features:

  • Heavy duty construction designed for 24 Hour continuous operation
  • Capable of load testing the hoist motors at 150% of their rated horsepower
  • ODP or TEFC design units available

The HDH Series Roto-Phase converter was developed specifically for hoist and trolley operation. This series of rotary phase converter was engineered to operate this type of three-phase hoist equipment at 100% of its rated nameplate horsepower. On start-up of new equipment, the hoist motor may be load tested at 150% of its nameplate rating. The HDH Series Roto-Phase is capable of allowing the hoist motor to be operated under these extreme test conditions. Models are available in 208, 230, and 460 VAC.


  • Magnetic Starter with Overload Protection & PB ON/OFF Station or a Time-Delay Relay
  • Fused Disconnect Switch
Rotary Roto Phase Converter Diagram
Ship Wt.
HDH1 13.00" 11.00" 10.00" 7.00" 9.00" 10x8x6 100 Lbs.
HDH2 16.00" 13.00" 13.00" 8.00" 10.00" 16x12x6 175 Lbs.
HDH3 17.00" 14.00" 13.00" 10.00" 12.00" 16x12x6 225 Lbs.
HDH5 19.00" 16.00" 16.00" 12.00" 12.00" 16x12x6 300 Lbs.
HDH7 23.00" 18.00" 21.00" 13.00" 13.00" 18x18x10 500 Lbs.
HDH10 25.00" 20.00" 24.00" 14.00" 15.00" 18x18x10 650 Lbs.
HDH15 27.00" 22.00" 25.00" 15.00" 17.00" 24x24x10 1000 Lbs.

Dimensions given are not certified.
Case size and shipping weights are subject to change without notice.
ARCO Electric reserves the right to make product changes without prior notice.
Specify 230 V or 460 V. Orders placed without specified voltage 230 will be used.

NOTE: When ordering the phase converter with the magnetic starter control package, you will need to add the Prefix Letter “C” (Automatic unit with starter, OL protection, and time-delay relay), or Prefix Letter “C/” (Manual unit with starter, OL protection, and push button START/STOP station).

With the addition of optional features, the panel size of the phase converter model may change – Please Consult Factory.

ARCO Electric Products reserves the right to make product changes without prior notification.

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Contact ARCO

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Home Office:
2325 E. Michigan Road
Shelbyville, IN 46176-3400
Toll Free: 800-428-4370
Direct: 317-398-9713
Fax: 317-398-2655
Location Manager:
E-Mail: Dustin Shoaf
Sales Manager:
E-Mail: Tim Drake