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ROTOVERTER® Type D

Patented ROTOVERTER® tap adjustments give you control over all three phases for balancing currents. Type D ROTOVERTER® models are recommended for applications where a single load (of either single or multiple motors up to 42 HP) is operated and for non-motor load applications. These models are sized to the largest three-phase motor based on full-load amp (FLA) rating or total motor horsepower to be operated at one time.

Applications:

  • CNC equipment
  • Compressors: refrigeration, air conditioning
  • Pumps: centrifugal, heating systems, turbine
  • Lift stations
  • Fertilizer plants
  • Grain dryers
  • Multiple small motors

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  • Specifications
    Series

    Model

    Input Voltage / Output Voltage

    Rotary Base

    NEMA 3R Capacitor Panels Provided

    Motor Ratings

    ROTOVERTER®

    Type 2D

    Type 2D-AS*

    Single-phase 240V / Three-phase 240V

    Open drip-proof

    2

    Single motor: 1 HP to 40 HP

    Total HP: 1.4 HP to 42 HP

    ROTOVERTER®

    Type 4D

    Type 4D-AS*

    Single-phase 480V / Three-phase 480V

    Open drip-proof

    2

    Single motor: 1 HP to 40 HP

    Total HP: 1.4 HP to 42 HP

    *Automatic Start Units are supplied with a contactor and associated controls to integrate with equipment that may cycle automatically from control circuitry containing timers, level or pressure sensors, etc., to bring the rotary transformer to speed before the load is energized, as required by NEC Article 455-21.
  • Amp Rating
    Converter Size

    Type 2D

    Type 2D-AS

    Type 4D

    Type 4D-AS

    Largest Single Three-Phase Motor

    Total Three-Phase Motors

    Single-Phase Input FLA

    1.4 KVA

    240V

    480V

    1

    1.4

    10 @240V

    5 @480V

    2.1KVA

    240V

    480V

    2

    2.1

    15 @ 240V

    8 @ 480V

    3.5KVA

    240V

    480V

    3

    3.5

    22 @240V

    11 @480V

    5.3KVA

    240V

    480V

    5

    5.3

    30 @240V

    15 @480V

    8KVA

    240V

    480V

    7.5

    8

    42 @240V

    21 @480V

    12KVA

    240V

    480V

    10

    12

    54 @240V

    27 @480V

    16KVA

    240V

    480V

    15

    16

    70 @240V

    35 @480V

    21KVA

    240V

    480V

    20

    21

    90 @240V

    45 @480V

    28KVA

    240V

    480V

    25

    28

    120 @240V

    60 @480V

    35KVA

    240V

    480V

    30

    35

    150 @240V

    75 @480V

    42KVA*

    240V

    480V

    40

    42

    180 @240V

    90 @480V

    * Unit Size Not UL Listed
  • Approx. Shipping Weights
    Converter Size

    Weight

    1.4KVA

    72 lbs

    2.1KVA

    92 lbs

    3.5KVA

    100 lbs

    5.3KVA

    128 lbs

    8KVA

    248 lbs

    12KVA

    251 lbs

    16KVA

    294 lbs

    21KVA

    329lbs

    28KVA

    450 lbs

    35KVA

    486 lbs

    42KVA

    590 lbs

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Reliability and safety of electrical systems have never been more important. Ronk's American designed and assembled products are durable, efficient and last for decades.

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