Motor Starters

Motor Starter Autotransformers are crucial for the efficient and controlled starting of electric motors in various industrial applications. These autotransformers reduce the line voltage during the starting period, mitigating the high inrush currents and mechanical stress associated with motor startup. By offering three different voltage taps, they allow for a choice of starting currents and torques, tailored to specific load requirements.

Our medium-duty motor starters are designed to provide maximum starting acceleration and torque while addressing the major limitations of on-line starters—namely, high starting current and torque. These autotransformers ensure smooth and reliable motor startup, making them ideal for applications such as conveyor systems, pumps, compressors, and various types of machinery.

Motor starter autotransformers are offered as a Core & Coil assembly as standard, but can also be housed in an enclosure upon request to provide additional protection against environmental factors. Built to meet rigorous industry standards, our motor starter autotransformers combine simplicity and economy, delivering consistent and long-lasting performance. They are CSA certified and UL Recognized, ensuring they adhere to stringent quality and safety standards. Their robust construction and user-friendly design ensure easy installation and operation, even in demanding industrial environments.

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Showing 25–34 of 34 results

  • RS10C

    Catalog No.:RS10C

    Motor Starters
    Phases: 3
    HP: 10
    Primary Voltage: 240
    Secondary Voltage: 65/80/100%
    Conductor Material: Copper

    Out of stock

    Current lead time 3-4 weeks

    $619.37 USD

    RS10C

    SKU: dea51b1c8684 Category:

    Out of stock

    Current lead time 3-4 weeks

    $619.37 USD
  • RS500J

    Catalog No.:RS500J

    Motor Starters
    Phases: 3
    HP: 500
    Primary Voltage: 600
    Secondary Voltage: 50/65/80/100%
    Conductor Material: Copper

    Out of stock

    Current lead time 3-4 weeks

    $4,531.50 USD

    RS500J

    SKU: f76fca1480d1 Category:

    Out of stock

    Current lead time 3-4 weeks

    $4,531.50 USD
  • RS400J

    Catalog No.:RS400J

    Motor Starters
    Phases: 3
    HP: 400
    Primary Voltage: 600
    Secondary Voltage: 50/65/80/100%
    Conductor Material: Copper

    Out of stock

    Current lead time 3-4 weeks

    $3,633.01 USD

    RS400J

    SKU: ebafd89370d3 Category:

    Out of stock

    Current lead time 3-4 weeks

    $3,633.01 USD
  • RS250J

    Catalog No.:RS250J

    Motor Starters
    Phases: 3
    HP: 250
    Primary Voltage: 600
    Secondary Voltage: 50/65/80/100%
    Conductor Material: Copper

    Out of stock

    Current lead time 3-4 weeks

    $1,981.84 USD

    RS250J

    SKU: 96a06695c1d4 Category:

    Out of stock

    Current lead time 3-4 weeks

    $1,981.84 USD
  • RS150J

    Catalog No.:RS150J

    Motor Starters
    Phases: 3
    HP: 150
    Primary Voltage: 600
    Secondary Voltage: 50/65/80/100%
    Conductor Material: Copper

    Out of stock

    Current lead time 3-4 weeks

    $1,407.39 USD

    RS150J

    SKU: 0b00e7722543 Category:

    Out of stock

    Current lead time 3-4 weeks

    $1,407.39 USD
  • RS100J

    Catalog No.:RS100J

    Motor Starters
    Phases: 3
    HP: 100
    Primary Voltage: 600
    Secondary Voltage: 50/65/80/100%
    Conductor Material: Copper

    Out of stock

    Current lead time 3-4 weeks

    $976.56 USD

    RS100J

    SKU: cf12995275a3 Category:

    Out of stock

    Current lead time 3-4 weeks

    $976.56 USD
  • RS60J

    Catalog No.:RS60J

    Motor Starters
    Phases: 3
    HP: 60
    Primary Voltage: 600
    Secondary Voltage: 50/65/80/100%
    Conductor Material: Copper

    Out of stock

    Current lead time 3-4 weeks

    $790.23 USD

    RS60J

    SKU: df5c361091eb Category:

    Out of stock

    Current lead time 3-4 weeks

    $790.23 USD
  • RS40J

    Catalog No.:RS40J

    Motor Starters
    Phases: 3
    HP: 40
    Primary Voltage: 600
    Secondary Voltage: 65/80/100%
    Conductor Material: Copper

    Out of stock

    Current lead time 3-4 weeks

    $567.82 USD

    RS40J

    SKU: 07717a3bb5b1 Category:

    Out of stock

    Current lead time 3-4 weeks

    $567.82 USD
  • RS20J

    Catalog No.:RS20J

    Motor Starters
    Phases: 3
    HP: 20
    Primary Voltage: 600
    Secondary Voltage: 65/80/100%
    Conductor Material: Copper

    Out of stock

    Current lead time 3-4 weeks

    $517.00 USD

    RS20J

    SKU: 0f9c3c2aa72b Category:

    Out of stock

    Current lead time 3-4 weeks

    $517.00 USD
  • RS10J

    Catalog No.:RS10J

    Motor Starters
    Phases: 3
    HP: 10
    Primary Voltage: 600
    Secondary Voltage: 65/80/100%
    Conductor Material: Copper

    Out of stock

    Current lead time 3-4 weeks

    $474.29 USD

    RS10J

    SKU: af63486829a5 Category:

    Out of stock

    Current lead time 3-4 weeks

    $474.29 USD

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