Variable Frequency Drives

Variable Frequency Drives (VFD's) for motors from 1 H.P. up to 700 H.P.

While soft starters and variable frequency drives are similar in nature, the latter offers many more features in addition to just the ramp up to full speed that a soft starter offers. A VFD allows for adjusting the torque or power of a motor to extend its life span, for adjusting the speed to match the application and finally it saves energy and improves the systems efficiency. The ability of these units to match the energy requirement of the motor or equipment is what sets VFD's apart from any other motor control solution.

Benshaw and LSIS offer cutting edge VFD's for any application

Whether you need a simple 5 horsepower drive rated for 230 volt or a more robust 75 horsepower drive rated for 460, Benshaw offers a VFD suitable for your application. Their RSI series has an offering from 1 to 5 H.P. in a protected chassis NEMA 1 enclosure up to 700 H.P. @ 460 volt for the SG series.  Should your requirements be for an engineered enclosed VFD, Benshaw has numerous options, including the RX2E and RX3E series of severe duty variable frequency drives that are offered in NEMA 12 and NEMA 3R enclosures for outdoor use.

  • Benshaw RSI-005-GX-4 VFD

    RSI-005-GX-4

    Benshaw RSI-005-GX-4 5 HP, 7.6 AMP 460 volt variable frequency drive (VFD) in a NEMA 1 enclosure.  This protected chassis comes standard with 8 digital and 2 standard inputs along with 1 analog and 1 relay output, providing for the most input/output...

    $0.00
  • Benshaw RSI-005-S4-2W VFD Benshaw RSI-005-S4-2W wiring diagram

    RSI-005-S4-2W

    The Benshaw RSI-005-S4-2W is a 5 horsepower at 230 volt variable frequency drive (VFD) that is rated for 15.2 AMPS standard duty.  This wash down VFD is housed in a NEMA 4X polycarbonate enclosure and can withstand the harshest of elements while...

    $0.00
  • Benshaw RSI-007-GM2-4C variable frequency drive Benshaw RSI-007-GM2-4C front dimensions

    RSI-007-GM2-4C

    The Benshaw RSI-007-GM2-4C next generation variable frequency drive is rated for 7.5 H.P. @ 460 volt standard duty and comes with a fully functioning front operated keypad. This sensor-less vector micro drive is rated for 10 AMPS, comes with a internal...

    MSRP: $617.00
    $370.20
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  • Benshaw RSI-007-H2-4C variable frequency drive Benshaw RSI-007-H2-4C front dimensions

    RSI-007-H2-4C

    The Benshaw RSI-007-H2-4C variable frequency drive (VFD) is rated for 7.5 horsepower at 460 volt 3 phase and is housed in a protected chassis IP20 enclosure. This next generation 12 AMP VFD is rated for both standard duty (7.5 H.P.) and heavy duty...

    MSRP: $1,532.00
    $919.20
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  • Benshaw RSI-015-S4-2W VFD Benshaw RSI-015-S4-2W wiring diagram

    RSI-015-S4-2W

    The Benshaw RSI-015-S4-2W is a 15 horsepower at 230 volt variable frequency drive (VFD) that is rated for 42 AMPS standard duty.  This wash down VFD is housed in a NEMA 4X polycarbonate enclosure and can withstand the harshest of elements while...

    $0.00
  • Benshaw RSI-020-H2-4C variable frequency drive Benshaw RSI-020-H2-4C keypad

    RSI-020-H2-4C

    The Benshaw RSI-020-H2-4C variable frequency drive (VFD) is rated for 20 horsepower at 460 volt 3 phase and is housed in a protected chassis IP20 enclosure. This next generation 30 AMP VFD is rated for both standard duty (20 H.P.) and heavy duty (15...

    MSRP: $2,381.00
    $1,428.60
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  • Benshaw RSI-030-SG-2B VFD Benshaw RSI-030-SG-2B wiring diagram

    RSI-030-SG-2-B

    The Benshaw RSI-030-SG-2B variable frequency drive (VFD) is rated for 30 horsepower at 230 volt 3 phase and is housed in a NEMA 1 enclosure.  The versatile power stack offers the user the ability to use with variable torque loads (110% for 60...

    $0.00
  • Benshaw RSI-030-SG-4B VFD Benshaw RSI-030-SG-4B wiring diagram

    RSI-030-SG-4-B

    The Benshaw RSI-030-SG-4B variable frequency drive (VFD) is rated for 30 horsepower at 460 volt 3 phase and is housed in a NEMA 1 enclosure.  The versatile power stack offers the user the ability to use with variable torque loads (110% for 60...

    $0.00
  • Benshaw RSI-040-S4-4W VFD Benshaw RSI-040-S4-4W wiring diagram

    RSI-040-S4-4W

    The Benshaw RSI-040-S4-4W is a 40 horsepower at 460 volt variable frequency drive (VFD) that is rated for 52 AMPS standard duty.  This wash down VFD is housed in a NEMA 4X polycarbonate enclosure and can withstand the harshest of elements while...

    $0.00
  • Benshaw RSI-040-SG-4B VFD Benshaw RSI-040-SG-4B wiring diagram

    RSI-040-SG-4-B

    The Benshaw RSI-040-SG-4B variable frequency drive (VFD) is rated for 40 horsepower at 460 volt 3 phase and is housed in a NEMA 1 enclosure.  The versatile power stack offers the user the ability to use with variable torque loads (110% for 60...

    $0.00
  • Benshaw RSI-050-S4-4W VFD Benshaw RSI-050-S4-4W wiring diagram

    RSI-050-S4-4W

    The Benshaw RSI-050-S4-4W is a 50 horsepower at 460 volt variable frequency drive (VFD) that is rated for 65 AMPS standard duty.  This wash down VFD is housed in a NEMA 4X polycarbonate enclosure and can withstand the harshest of elements while...

    $0.00
  • Benshaw RSI-150-H2-4C variable frequency drive Benshaw RSI-150-H2-4C front dimensions

    RSI-150-H2-4C

    The Benshaw RSI-150-H2-4C variable frequency drive (VFD) is rated for 150 horsepower at 460 volt 3 phase and is housed in a protected chassis IP20 enclosure. This next generation 223 AMP VFD is rated for both standard duty (150 H.P.) and heavy duty...

    MSRP: $12,530.00
    $7,518.00
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