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Dayton 3K300 capacitor-start/run motor 143T frame totally enclosed fan cooled

Dayton

Dayton 3K300 Capacitor-Start/Run Motor 1 1/2 hp 115/208-230V 3450 RPM 143T Frame

SKU CH-WB3F-7N9S5

Capacitor-start/run motor delivers 1 1/2 hp at 3,450 RPM on 115/208-230V AC for continuous duty

  • typeClosed Base
  • 1 1/2 hp output drives demanding machinery
  • Capacitor-start/run design delivers strong starting torque
  • Dual-voltage 115/208-230 V suits varied supplies
  • 143T frame fits standard mounting patterns
  • Totally enclosed fan-cooled enclosure protects internals

1 1/2 hp Capacitor-Start/Run Motor

The Dayton 3K300 is a single-phase general purpose motor rated at 1 1/2 hp with a nameplate speed of 3,450 RPM. It operates on 115/208-230V AC at 60 Hz and fits a 143T frame with rigid base mounting. The capacitor-start/run design provides starting torque and running efficiency for continuous duty cycles. It suits industrial machinery requiring a totally enclosed fan cooled enclosure.

Capacity and Headroom

Full load current draws 14.6 amps at 115V or 8.1 to 7.4 amps at 208-230V with a service factor of 1. The motor is usable at 208V and rated for a maximum ambient temperature of 40 degrees C. Insulation class B and continuous duty rating support sustained operation within these electrical and thermal limits. No thermal protection is built in, so external overload devices are required for safety.

Build Integration

The totally enclosed fan cooled enclosure protects internal components in dusty or damp environments. CW/CCW shaft rotation allows wiring for either direction to match driven equipment. Rigid base mounting secures the 143T frame to a flat surface without additional brackets. Dual voltage wiring enables connection to 115V or 208-230V supplies as available on site.

Highlights

  • 1 1/2 hp output drives demanding machinery
  • Capacitor-start/run design delivers strong starting torque
  • Dual-voltage 115/208-230 V suits varied supplies
  • 143T frame fits standard mounting patterns
  • Totally enclosed fan-cooled enclosure protects internals

Specifications

BrandDAYTON
typeClosed Base

Questions about this item

Will the 143T frame and 115/208-230V wiring match my existing motor mount and supply?

The motor uses a 143T frame with rigid base mounting and accepts 115 V or 208-230 V single-phase power, so it fits the same bolt pattern and voltage options as other 143T units.

How can I confirm the 3,450 RPM motor is running correctly after installation?

Measure the shaft speed under load; it should read approximately 3,450 RPM at 60 Hz, and the current draw should be near 14.6 A at 115 V or 7.4-8.1 A at 230 V.

Does the box include the start/run capacitor or must I order it separately?

The capacitor is built into the motor enclosure, so no separate capacitor purchase is required for standard operation.

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