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Dayton 1 HP 1140 RPM 56 frame motor open drip proof closed base

Dayton

Dayton 30PT91 1 HP 1140 RPM 56 Frame Fan Accessory

SKU CH-CNE1-A69RF

Single-phase 1 hp capacitor-start/run motor delivers 1140 RPM in a 56 frame open drip-proof enclosure with cradle-base mounting for continuous horizontal duty

  • weight37.5
  • typeClosed Base
  • 1 HP motor delivers 1140 RPM for steady airflow
  • Capacitor-start/run design provides reliable single-phase operation
  • Open drip-proof enclosure resists moisture and debris
  • 56 frame with cradle base fits standard mounting configurations
  • 1 % efficiency reduces energy consumption during continuous duty

Dayton 1 HP General Purpose Motor

The Dayton 30PT91 is a single-phase, capacitor-start/run motor rated at 1 HP and 1140 RPM. It operates on 115/230V AC at 60 Hz with a 56 frame and open drip-proof enclosure. The motor weighs 37.5 units and features a cradle base for horizontal mounting.

Suits Fixed-Speed Continuous Duty

This motor suits applications needing continuous operation at a constant 1140 RPM with 1.15 service factor. It is not for variable-speed drives, as it is not inverter rated. Buyers requiring thermal protection or vertical mounting should look elsewhere.

1 HP at 1140 RPM Nameplate Speed

The nameplate rating of 1 HP at 1140 RPM is the primary specification for matching this motor to your load requirements. Verify that your application demands this exact horsepower and speed combination before purchasing.

Highlights

  • 1 HP motor delivers 1140 RPM for steady airflow
  • Capacitor-start/run design provides reliable single-phase operation
  • Open drip-proof enclosure resists moisture and debris
  • 56 frame with cradle base fits standard mounting configurations
  • 1 % efficiency reduces energy consumption during continuous duty

Specifications

BrandDAYTON
weight37.5
typeClosed Base

Questions about this item

Does the 115/230 V AC motor require a specific capacitor or is one integrated?

The motor uses a capacitor-start/run design; a compatible capacitor rated for the 8.9 / 4.6 A full-load current must be supplied separately.

Can the 56-frame motor share the same mounting bolts as my existing 56-frame unit?

Yes, the cradle-base mounting matches standard 56-frame dimensions, so existing bolts and hole patterns will align.

How can I verify the motor is delivering its rated 1 HP at 1140 RPM after installation?

Measure the running current at full load — it should read close to 8.9 A at 115 V or 4.6 A at 230 V — and confirm shaft speed with a tachometer.

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