Dayton
Dayton 4THU1 3-Phase Motor 1 HP 145TC 230/460V AC HVAC Control
Three-phase general-purpose motor delivers 1 HP at 1,140 RPM with 82.5% nominal efficiency and 1.15 service factor
- 1 HP three-phase motor delivers reliable HVAC power
- Dual 230/460 V AC input suits flexible wiring
- 145TC C-face frame enables direct mounting
- 5 % nominal efficiency reduces energy cost
- Class F insulation rated for 40 °C ambient
Dayton 4THU1 3-Phase Motor Overview
The Dayton 4THU1 is a general purpose three-phase AC motor rated at 1 HP with a 145TC frame. It operates on 230/460V AC at 60 Hz and features an open drip proof enclosure with a C-face mounting design. The steel frame houses ball bearings and provides continuous duty operation with a 1.15 service factor. Nominal efficiency is rated at 82.5 percent.
Suitable Applications and Limitations
This motor suits industrial HVAC equipment, pumps, fans and conveyors requiring a 145TC frame and dual-voltage three-phase supply. The CW/CCW rotation capability allows flexible installation. It is not suited for single-phase power environments or applications requiring built-in thermal protection. Buyers needing a different frame size, enclosure type or voltage rating should look at alternative models.
Installation Notes and Common Issues
The C-face mounting simplifies direct coupling to compatible gearboxes or pump housings. Dual voltage wiring at 230V or 460V must follow the nameplate diagram precisely to avoid damage. Full load current draws 3.3A at 230V and 1.7A at 460V. The open drip proof design requires protection from water ingress and debris. Maximum ambient temperature is 40 degrees C.
Highlights
- 1 HP three-phase motor delivers reliable HVAC power
- Dual 230/460 V AC input suits flexible wiring
- 145TC C-face frame enables direct mounting
- 5 % nominal efficiency reduces energy cost
- Class F insulation rated for 40 °C ambient
Specifications
| Brand | DAYTON |
|---|
Questions about this item
What three-phase voltage supply do I need to run this 1 HP motor?
This motor operates on 230/460V AC three-phase power at 60 Hz, drawing 3.3 amps at 230V or 1.7 amps at 460V.
Can I connect this 145TC frame motor to my existing C-face gearbox?
Yes, the 145TC frame uses a standard C-face mounting pattern, so it bolts directly to compatible C-face reducers or driven equipment.
How can I verify the motor is running at its rated efficiency after installation?
Measure the input power under full load; the motor should deliver 1 HP output at approximately 82.5 percent nominal efficiency with a 1.15 service factor.
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