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Dayton 1 1/2 hp three-phase motor open dripproof enclosure

Dayton

Dayton Motor 1 1/2 hp 208-230/460V AC Open Dripproof

SKU CH-KSYF-75M10

A three-phase motor delivering 1 1/2 hp at 208-230/460V AC with an open dripproof enclosure and UL listing

  • Three-phase power delivers smooth, efficient operation
  • 1 1/2 hp rating provides strong torque for demanding pumps
  • 208-230/460V AC input fits common industrial supplies
  • Open dripproof enclosure resists falling dirt and moisture
  • UL Listed certification confirms safety compliance

Industrial Three-Phase Motor

This Dayton motor delivers 1 1/2 hp in a three-phase design built for straight centrifugal pump applications. It operates at nameplate voltages of 208-230/460V AC and is UL Listed for safety compliance. The unit matches Grainger part numbers 4UA73A and 4UA74A for direct replacement. It is not suited for single-phase power supplies or non-centrifugal pump types.

Open Dripproof Thermal Profile

The open dripproof enclosure allows airflow through the windings for cooling during continuous operation. This design suits indoor environments where falling water is not a hazard. Three-phase operation typically provides balanced current draw and lower vibration than single-phase alternatives. No sound-pressure or power-factor figures are supplied for normal load conditions.

Mounting And Compatibility Details

The motor fits Dayton pump models 4UA73A and 4UA74A without modification. California Proposition 65 warnings apply for chemicals known to cause cancer and reproductive harm. The open enclosure requires protection from dripping liquids and conductive dust in the installation area. Buyers needing totally enclosed or washdown-rated construction should select a different enclosure style.

Highlights

  • Three-phase power delivers smooth, efficient operation
  • 1 1/2 hp rating provides strong torque for demanding pumps
  • 208-230/460V AC input fits common industrial supplies
  • Open dripproof enclosure resists falling dirt and moisture
  • UL Listed certification confirms safety compliance

Specifications

BrandDayton

Questions about this item

How do I wire the 208-230/460V three-phase motor to match my supply voltage?

Check the motor nameplate for the dual-voltage connection diagram and arrange the nine leads into the correct high-voltage (460 V) or low-voltage (208-230 V) pattern before energising.

Which bearing maintenance schedule applies to this open dripproof motor?

Relubricate the bearings at the intervals recommended by Dayton for the specific frame size; use a compatible grease and avoid over-filling to prevent overheating.

What thermal limit stops the motor first during continuous loaded operation?

The UL-listed insulation system reaches its rated temperature rise before any other component, so sustained overload will trip the thermal protection or degrade winding life.

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