NEMA Standard VHS Motor

NEMA Standard VHS Motor
NEMA Standard VHS Motor
NEMA Standard VHS Motor
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Vertical hollow shaft pump motor compliant with NEMA Premium standard for efficient energy savings

Our NEMA standard VHS motors, compliant with NEMA premium standard for efficient energy savings, is primarily designed for the US market, meeting strict American technical and firefighting requirements. This type of motor is designed with super premium efficiency and features waterproof, dustproof, and corrosion-resistant properties to withstand harsh conditions in deep well pumps. Additionally, our NEMA Standard VHS Motor is highly efficient and energy-saving, reducing energy consumption and suitable for urban drainage, agricultural irrigation, and industrial water supply.

  • Standard: NEMA MG-1, MG-13, IEEE-841
  • Certification: CE, CSA, UL
  • Rated voltage: 230V/460V or as required
  • Rated frequency: 60Hz
  • Output power: 7.5HP-600HP
  • Duty: continuous duty SF1.15 (optional SF1.15-1.3)
  • Frame: 213TP - 5807P
  • Protection degree: WP-I\WP-II\TEFC
  • Cooling method: IC411
  • Insulation class: class F
  • Material: Cast steel
  • Mounting type: Vertical P-Base
  • Temperature rise: class B temperature rise of stator winding
  • Efficiency: NEMA Premium Efficiency, Department of Energy Efficiency Certification #CC002A
  • Shaft position: Vertical
  • PWS, special balancing
  • Startup mode: Star delta starter/VFD/soft starter
  • Wide voltage range: 300-460V
  • Insulated thrust bearings (Optional): TMB (standard), NSK, SKF, and FAG
  • Warranty: 1-2 years
  • Ambient temperature: 50-60℃
  • Altitude: 1000-2000m
Key Features
  • Class F insulation with Class B temperature rise assessment ensures reliable performance in demanding conditions.
  • Operates with a 1.15 service factor (sinusoidal power supply), thriving at ambient temperatures up to 60°C and altitudes up to 3,300 feet.
  • 230/460V motors support part-winding start at 230V, while 380–415V motors enable star/delta starting for seamless integration.
  • Features a steel ball non-reverse ratchet to prevent reverse rotation, enhancing operational safety.
Modular installation
  • Compact vertical design minimizes footprint, with the pump reaching deep wells up to hundreds of meters, reducing installation costs by submerging the unit underwater.
  • Large-window pump base streamlines maintenance and packing replacement.
Adjustable performance
  • Adjustable nut optimizes impeller axial clearance for peak efficiency.
  • Customizable materials and processes, like epoxy-coated flow paths or silica sol precision casting, adapt to diverse operational needs.
Mexican client purchased 8 NEMA standard VHS motors.
U.S. client ordered 16 NEMA VHS motors.
Specifications
Model Rated Power (HP) Frame Speed (RPM) Rated Voltage (V) Efficiency (%) Axial Thrust Load (Ibs) Frame Diameter (in) Weight (Ibs)
VHS213TP-2-0075P2 7.5 213TP 3600 230/460 88.9 2000 10 302
VHS215TP-4-0075P2 7.5 215TP 1800 230/460 91.4 2500 10 302
VHS213TP-2-010P2 10 213TP 3600 230/460 89.9 2000 10 340
VHS215TP-4-010P2 10 215TP 1800 230/460 92.1 2500 10 340
VHS215TP-2-015P2 15 215TP 3600 230/460 90.6 2000 10 448
VHS254TP-4-015P2 15 254TP 1800 230/460 93.4 3200 10 583
VHS254TP-2-020P2 20 254TP 3600 230/460 91.4 2500 10 596
VHS256TP-4-020P2 20 256TP 1800 230/460 93.4 3200 10 621
VHS256TP-2-025P2 25 256TP 3600 230/460 92.1 2500 10 646
VHS284TP-4-025P2 25 284TP 1800 230/460 94.0 3200 10 658
VHS284TP-2-030P2 30 284TP 3600 230/460 92.1 2500 10 674
VHS286TP-4-030P2 30 286TP 1800 230/460 94.5 3200 10 698
VHS286TP-2-040P2 40 286TP 3600 230/460 92.8 2500 10 728
VHS324TP-4-040P2 40 324TP 1800 230/460 94.5 5500 16.5 937
VHS324TP-4-040P2 40 324TP 1800 460 94.5 5500 16.5 937
VHS324TP-2-050P2 50 324TP 3600 230/460 93.4 4290 16.5 956
VHS324TP-2-050P2 50 324TP 3600 460 93.4 4290 16.5 956
VHS326TP-4-050P2 50 326TP 1800 230/460 94.9 5500 16.5 989
VHS326TP-4-050P2 50 326TP 1800 460 94.9 5500 16.5 989
VHS326TP-2-060P2 60 326TP 3600 230/460 94.0 4290 16.5 1030
VHS326TP-2-060P2 60 326TP 3600 460 94.0 4290 16.5 1030
VHS364TP-4-060P2 60 364TP 1800 230/460 95.4 5600 16.5 1140
VHS364TP-4-060P2 60 364TP 1800 460 95.4 5600 16.5 1140
VHS364TP-2-075P2 75 364TP 3600 230/460 94.0 4400 16.5 1162
VHS364TP-2-075P2 75 364TP 3600 460 94.0 4400 16.5 1162
VHS365TP-4-075P2 75 365TP 1800 230/460 95.4 5600 16.5 1192
VHS365TP-4-075P2 75 365TP 1800 460 95.4 5600 16.5 1192
VHS365TP-2-100P2 100 365TP 3600 230/460 94.0 4400 16.5 1226
VHS365TP-2-100P2 100 365TP 3600 460 94.0 4400 16.5 1226
VHS404TP-4-100P2 100 404TP 1800 230/460 95.8 6700 16.5 1638
VHS404TP-4-100P2 100 404TP 1800 460 95.8 6700 16.5 1638
VHS404TP-2-125P2 125 404TP 3600 230/460 94.5 5265 16.5 1646
VHS404TP-2-125P2 125 404TP 3600 460 94.5 5265 16.5 1646
VHS405TP-4-125P2 125 405TP 1800 230/460 95.8 6700 16.5 1700
VHS405TP-4-125P2 125 405TP 1800 460 95.8 6700 16.5 1700
VHS405TP-2-150P2 150 405TP 3600 230/460 94.5 6285 16.5 1755
VHS405TP-2-150P2 150 405TP 3600 460 94.5 6285 16.5 1755
VHS444TP-4-150P2 150 444TP 1800 230/460 96.2 8000 16.5 2256
VHS444TP-4-150P2 150 444TP 1800 460 96.2 8000 16.5 2256
VHS445TP-4-200P2 200 445TP 1800 230/460 96.2 8000 16.5 2438
VHS445TP-4-200P2 200 445TP 1800 460 96.2 8000 16.5 2438
VHS445TP-4-250P2 250 445TP 1800 230/460 96.2 8000 16.5 2588
VHS445TP-4-250P2 250 445TP 1800 460 96.2 8000 16.5 2588
VHS447TP-4-300P2 300 447TP 1800 460 96.2 8000 20 2990
VHS5006P-4-300P2 300 5006P 1800 460 96.2 8750 20 3946
VHS5006P-4-350P2 350 5006P 1800 460 96.2 8750 20 4057
VHS5008P-4-400P2 400 5008P 1800 460 96.2 8750 24.5 5302
VHS5008P-4-450P2 450 5008P 1800 460 96.6 8750 24.5 5483
VHS5008P-4-500P2 500 5008P 1800 460 96.6 8750 24.5 5655
VHS5807P-4-600P2 600 5807P 1800 460 96.6 9680 30.5 6872

Designed for deep-well turbine pumps, our three-phase asynchronous squirrel-cage rotor motors excel in handling significant axial forces, ensuring reliable performance for vertical solid-shaft pump systems.

Installation Instructions
  • Screw the coupling bolt into the pump coupling, ensuring it remains vertical.
  • Remove the motor’s top cover.
  • Clean the mounting surface, then vertically align the motor over the pump shaft onto the base flange support. Secure with fastening bolts.
  • Firmly connect the motor to the pump shaft coupling.
  • Inject high-quality bearing lubricant (viscosity 13–16.5 mm²/s) through the motor’s oil fill port.
  • Add lubricant per the motor’s label, typically below half the sight window level, unless specified otherwise.
  • Excess lubricant may flow into the motor via the shaft sleeve or be flung out during rotation—this does not affect normal operation, so clients can use with confidence.
  • After verifying the installation, replace and tighten the motor’s top cover.
Operational Notes
  • Equipped with thermal and short-circuit protection devices; set current according to the nameplate.
  • If frequency deviates by 1% or voltage by 5% from nameplate values, continuous rated power cannot be guaranteed.
  • Whether loaded or not, the motor must not produce irregular sounds or vibrations. Operating temperature must not exceed 95°C.
FAQ

Our NEMA Standard VHS motors are specially designed to deliver high torque and strong axial thrust, enabling water extraction from hundreds of meters underground, making them ideal for deep-well pumps with high-lift capability where reliable vertical motion is critical.

Our NEMA Standard VHS motors offer multiple cooling options for the main thrust bearing, including oil lubrication, oil cooling, and water cooling.

We use both thrust bearings and heavy-duty bearings, depending on the application load. Our high-thrust configurations can withstand up to 26,000 lbs of axial thrust, ensuring stability during operations.

Yes, our VHS motors are fully compatible with VFD systems, supporting VHD starter and operations.

Our NEMA Standard VHS motors are available in multiple protection grades, including IP23, IP54, IP55, and IP56. We also offer housing options like WP-I, WP-II, and TEFC to ensure reliable operation in dusty, humid, or outdoor conditions.

Yes, our VHS motors meet the requirements of Middle Eastern standards such as SABER and SASO. In fact, we have shipped thousands of units to countries in the Middle East within the past year.

Yes, we provide engineering support, including on-site installation guidance, training, and system commissioning services.

Yes, we offer complete customization based on your project needs. Our designers and professional engineering teams will customize the motors according to your requirements. For example: IE4\IE5 energy efficiency, IP56 protection rating, service factor up to 1.3, water-cooled bearings, and integrated temperature control systems.
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