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Dayton 31TT22 three-phase motor, open drip-proof steel frame, rigid base, 2 HP

Dayton

Dayton 31TT22 3-Phase Motor 2 HP 56H Frame 230/460V AC

SKU CH-EY20-JQ1YD

Three-phase general-purpose motor delivers 2 HP at 1725 RPM with 230/460 V dual-voltage operation and 86.5 % nominal efficiency

  • Three-phase 2 HP output powers demanding HVAC loads
  • Dual-voltage 230/460 V AC suits varied supply networks
  • 5 % nominal efficiency cuts running costs
  • Open drip-proof steel frame resists dust and moisture
  • Ball bearings and 1.15 service factor extend service life

Three-Phase 2 HP Motor for HVAC Applications

The Dayton 31TT22 is a general-purpose three-phase AC motor rated at 2 HP with a 56H frame. It operates on 230/460V at 60/50 Hz and delivers a nameplate speed of 1,725 RPM. The open drip-proof enclosure and rigid base mounting suit industrial HVAC equipment.

Dual-Voltage Wiring and Thermal Limits

The motor draws 6.0 A at 230V or 3.0 A at 460V and carries a 1.15 service factor. Insulation Class B and a 40 °C maximum ambient temperature define the thermal envelope. No internal thermal protection is fitted, so external overload devices are required. Nominal efficiency is 86.5 %.

Frame Compatibility and Rotation Needs

Verify that the driven equipment accepts a 56H frame with rigid base mounting and a shaft capable of CW/CCW rotation. The supply must provide three-phase power at either 230V or 460V with appropriate branch-circuit protection. Continuous-duty rating allows non-stop operation within the stated ambient limit.

Highlights

  • Three-phase 2 HP output powers demanding HVAC loads
  • Dual-voltage 230/460 V AC suits varied supply networks
  • 5 % nominal efficiency cuts running costs
  • Open drip-proof steel frame resists dust and moisture
  • Ball bearings and 1.15 service factor extend service life

Specifications

BrandDAYTON

Questions about this item

How do I choose between the 230 V and 460 V connection on this 2 HP motor?

The motor is dual-voltage; wire it for 230 V AC to draw 6.0 A or for 460 V AC to draw 3.0 A, matching your supply.

What does the 1,725 RPM nameplate speed mean once the motor is installed?

At full load the shaft turns at 1,725 RPM, delivering 2 HP continuous output at 86.5 percent nominal efficiency.

What does the 56H frame designation cap in practice?

The 56H frame fixes the mounting bolt pattern and shaft dimensions, so the motor fits only equipment designed for that frame size.

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