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ADD-A-PHASE® Power Converter Type K-Duo

Features:

  • Balanced Motor Currents - Can be adjusted to provide balanced current to multiple motors operating at a constant horsepower. Limits inrush current when the motors are starting, a critical factor on most single phase lines.
  • Options - Special units can be designed to handle 3 to 5 motors either separately or simultaneously. Variations are available to handle motors with higher than standard FLA ratings, motors with different HP ratings, and other applications.
  • Redundancy in Critical Applications – Any failure in one of the convertors leaves the others to operate the system until repairs can be made.

Applications:

  • Air Conditioning - Compressors
  • Wastewater lift stations/ booster pumps
  • Multiple motors

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  • Specifications
    Starting Current

    Approx. 300% of single-phase input full-load amperage

    Input Voltage Single-Phase

    Model 2K: 240V
    Model 3K: 240V
    Model 4K: 480V

    Output Voltage Three-Phase

    Model 2K: 240V
    Model 3K: 480V
    Model 4K: 480V

    Enclosure

    NEMA 3R aluminum

    Motor Ratings

    1HP-15HP

  • Amp Rating
    Converter Horsepower

    Load Motor Horsepower

    Type 2K

    Type 3K

    Type 4K

    3HP

    (2) 1.5HP

    14A

    14A

    8A

    4HP

    (2) 2 HP

    18A

    18A

    12A

    6HP

    (2) 3HP

    26A

    26A

    14A

    10HP

    (2) 5HP

    40A

    40A

    20A

    15HP

    (2) 7.5 HP

    60A

    60A

    30A

    20HP

    (2) 10HP

    80A

    80A

    30A

    30HP

    (2) 15HP

    120A

    120A

    60A

    40HP

    (2) 20HP

    160A

    160A

    80A

    50HP

    (2) 25HP

    190A

    190A

    96A

    60HP

    (2) 30HP

    230A

    230A

    116A

    80HP

    (2) 40HP

    300A

    300A

    150A

    Three-phase motor starter must be a full amperage across the lie start without three-phase voltage monitoring

    For Types K-SUB and K-AC, use the next large converter HP rating

  • Type K-Duo Series Options
    K-SUB

    Operate 2 pump motors with higher than standard FLA rating

    K-AC

    Operate 2 air conditioning compressor motors

    K-SP

    Operate 2 motors with different HP ratings

    K-8

    Operate 2 motors at 208V output

    L

    Operate 3 motors

    Q

    Operate 4 motors

    N

    Operate 5 motors

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ADD-A-PHASE® Power Converter Type SAC

Type SAC ADD-A-PHASE® static three-phase converter is designed for most commercial air conditioning systems.

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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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