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Dayton 53J909 three-phase motor closed base industrial finish

Dayton

Dayton 53J909 5 hp Three-Phase Motor 208-230/460V

SKU CH-RB7Q-W3G3B

A three-phase replacement motor delivering 5 hp at 800 RPM on 208-230/460 V supply

  • typeClosed Base
  • 5 hp three-phase power drives demanding fan loads
  • 1,800 RPM nameplate speed delivers consistent airflow
  • 208-230/460 V AC input fits common industrial supplies
  • 6 / 14 / 13.4 A full-load amps match circuit planning
  • Usable at 208 V extends installation flexibility

Direct OEM Replacement

The Dayton 53J909 is a new three-phase motor built as a direct OEM replacement for compatible fan assemblies. It delivers 5 hp at a nameplate speed of 800 RPM and operates on 208-230/460V AC supply. Full-load current draws are rated at 6.6, 13.4 and 14 A across the voltage range. The closed-base design suits standard industrial mounting requirements.

Voltage Flexibility

The motor is usable at 208V in addition to the nominal 230V and 460V connections, giving installers flexibility when matching existing three-phase supply infrastructure. This multi-voltage capability reduces the need to source separate windings for different facility voltages. No bundled accessories, controls or software are included with the motor itself.

Industrial Duty Capacity

Rated at 5 hp and 800 RPM, the unit comfortably handles heavy-duty fan loads in ventilation, HVAC and process-cooling applications. Three-phase operation provides smooth torque and efficient power factor for continuous duty cycles. It is not suited for single-phase supplies, variable-frequency drives without proper filtering, or applications requiring a higher horsepower rating.

Highlights

  • 5 hp three-phase power drives demanding fan loads
  • 1,800 RPM nameplate speed delivers consistent airflow
  • 208-230/460 V AC input fits common industrial supplies
  • 6 / 14 / 13.4 A full-load amps match circuit planning
  • Usable at 208 V extends installation flexibility

Specifications

BrandDAYTON
typeClosed Base

Questions about this item

What bearing maintenance will the closed-base motor require over time?

The closed-base design protects internal bearings from debris, so routine relubrication intervals follow the motor manufacturer's standard schedule rather than a shortened cycle.

Which thermal limit appears first during continuous 5 hp operation at 1800 RPM?

The motor's insulation class determines the maximum winding temperature; sustained full-load current of 13.4 A at 230 V or 6.6 A at 460 V will reach that limit before mechanical stress does.

How much heat and noise should I expect when the motor runs all day at 460 V?

At 460 V the full-load draw is 6.6 A, producing heat proportional to 5 hp output; the closed base reduces audible noise compared to open-frame designs.

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