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Dayton three-phase motor, open drip proof steel frame, rigid base mount

Dayton

Dayton 2NKX9 Three-Phase Motor 2 HP 143-5T/56HZ Frame

SKU CH-EVG8-PBYS0

Three-phase general-purpose motor delivers 2 HP at 3515 RPM in a 143-5T/56HZ frame with 230/460V dual-voltage operation

  • Delivers 2 HP at 3515 RPM for demanding tasks
  • Three-phase 230/460 V input suits industrial power systems
  • 5 % nominal efficiency reduces energy consumption
  • 15 service factor handles temporary overload conditions
  • CSA and UL listed for verified safety compliance

Two-Horsepower Three-Phase Motor

The Dayton 2NKX9 is a general-purpose three-phase motor rated at 2 HP for industrial and commercial equipment. It suits maintenance teams and OEMs who need a direct replacement in the 143-5T/56HZ frame size with dual-voltage flexibility.

3515 RPM at 60 Hz with 1.15 service factor

At 60 Hz the motor delivers 3515 RPM nameplate speed and draws 5.0 A at 230 V or 2.5 A at 460 V. The 1.15 service factor provides modest overload headroom for short peaks, while 86.5 percent nominal efficiency limits running cost. Continuous duty is rated up to 40 °C ambient; above that temperature or beyond the service factor the motor reaches its thermal limit.

Open drip-proof enclosure with rigid base

The open drip-proof steel frame and rigid base mounting simplify installation on existing foundations. Ball bearings support bidirectional CW/CCW rotation without modification. No internal thermal protection is fitted, so external overload devices must be supplied by the installer. CSA and UL listings confirm compliance with North American safety standards.

Highlights

  • Delivers 2 HP at 3515 RPM for demanding tasks
  • Three-phase 230/460 V input suits industrial power systems
  • 5 % nominal efficiency reduces energy consumption
  • 15 service factor handles temporary overload conditions
  • CSA and UL listed for verified safety compliance

Specifications

BrandDAYTON

Questions about this item

Will the 143-5T/56HZ frame and rigid base match the mounting pattern on my existing pump?

The motor uses a 143-5T/56HZ frame with a rigid steel base; verify your pump's bolt-hole layout and shaft height against NEMA 143-5T dimensions before installing.

How can I confirm the motor is delivering its rated 2 HP after wiring it for 230 V or 460 V three-phase?

Measure line current at full load — 5.0 A at 230 V or 2.5 A at 460 V — and check that speed settles near 3515 RPM with the 1.15 service factor engaged.

Does the box include a starter, overload relay or any mounting hardware, or must I source them separately?

Only the open drip-proof motor with ball bearings and Class F insulation is supplied; magnetic starter, overload protection and mounting bolts are not included.

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