Dayton
Dayton 4THX5 HVAC Control 1 HP 145TC 230/460V AC
Three-phase motor delivers 1 HP at 1,140 RPM with 82.5 percent efficiency and dual-voltage 230/460 V AC operation
- 1 HP three-phase motor delivers reliable industrial power
- 230/460 V AC dual-voltage input suits multiple supply configurations
- 145TC C-face frame enables direct mounting to driven equipment
- 5 % nominal efficiency reduces energy consumption during continuous duty
- Steel frame with ball bearings withstands 40 °C ambient conditions
Three-Phase Motor for HVAC Systems
The Dayton 4THX5 is a general-purpose three-phase motor rated at 1 HP with a 145TC frame. It operates on 230/460V AC at 60 Hz and delivers a nameplate speed of 1,140 RPM. The totally enclosed fan-cooled design suits continuous-duty HVAC applications requiring reliable airflow or pump operation.
Voltage and Mounting Compatibility
Verify that your supply provides three-phase power at either 230V or 460V AC to match the dual-voltage nameplate. The motor uses a C-face mounting arrangement, so the driven equipment must accept a 145TC frame with the corresponding bolt pattern. Full-load current draws 3.3 A at 230V or 1.7 A at 460V, so confirm your starter and wiring are sized accordingly.
Thermal and Electrical Characteristics
Class F insulation and a 1.15 service factor allow operation in ambient temperatures up to 40 °C. Nominal efficiency is rated at 82.5 percent, limiting waste heat during continuous running. The steel frame and ball bearings support bidirectional rotation without internal thermal protection, so external overload devices must handle fault conditions.
Highlights
- 1 HP three-phase motor delivers reliable industrial power
- 230/460 V AC dual-voltage input suits multiple supply configurations
- 145TC C-face frame enables direct mounting to driven equipment
- 5 % nominal efficiency reduces energy consumption during continuous duty
- Steel frame with ball bearings withstands 40 °C ambient conditions
Specifications
| Brand | DAYTON |
|---|
Questions about this item
What is included with the Dayton 4THX5 motor and what must be purchased separately?
The motor ships as a complete 1 HP three-phase unit with a 145TC C-face, steel frame, ball bearings and Class F insulation. Mounting hardware, VFD or starter, coupling and wiring are not included.
How do I decide between the 230 V and 460 V connection on this motor?
The nameplate lists dual voltage 230/460 V AC with full-load currents of 3.3 A at 230 V and 1.7 A at 460 V. Wire the motor for the supply voltage available at your installation.
What does the 82.5 % nominal efficiency mean for daily operation?
At full load the motor converts 82.5 % of electrical input into mechanical output, with the remainder lost as heat. The 1.15 service factor allows occasional overload without exceeding temperature limits.
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