Us Motors WDS1S2ACR 1 Hp Three Phase Ac Motor Tefc 143TC

Product Description

The US MOTORS WDS1S2ACR is a three-phase, energy-efficient AC motor designed for industrial and commercial applications requiring reliable continuous-duty performance. Rated at 1 horsepower and 1750 RPM nameplate speed, this motor runs on 208 to 230 volts or 460 volts at 60 Hz, making it suitable for single or dual-voltage installations. The totally enclosed fan-cooled (TEFC) enclosure protects internal windings from dust, moisture, and contaminants found in demanding service environments. Class F insulation and a 1.15 service factor provide thermal headroom for intermittent overload conditions. Full-load efficiency is rated at 85.50 percent, meeting energy-efficient standards expected in modern commercial equipment installations. Licensed electricians and HVAC-R technicians are the typical installers for this motor type.

This motor is suited for use in commercial HVAC equipment, pump drives, compressor applications, and general industrial machinery where a C-Face mount configuration is required. The 143TC frame size is a NEMA-standard footprint commonly found in fractional and small integral horsepower equipment. The reversible rotation makes it adaptable to a range of driven-load configurations. Full-load amperage is rated at 3.1 to 2.9 amps on 208-230 volts and 1.4 amps on 460 volts, supporting proper overcurrent protection sizing during installation.

Key Features

• 1 HP output at 1750 RPM nameplate speed for standard four-pole three-phase applications
• TEFC enclosure seals windings against dust, moisture, and airborne contaminants
• Dual-voltage design: 208 to 230 volts or 460 volts at 60 Hz
• 143TC NEMA C-Face frame for direct coupling to pumps, gearboxes, and driven equipment
• Class F insulation with 1.15 service factor for thermal tolerance during overload
• Reversible rotation for flexible installation configurations
• Ball bearings for reduced maintenance and extended service life

Compatibility

Designed as an OEM-style replacement or new-installation motor for three-phase commercial and industrial equipment requiring a 143TC C-Face frame, 1 HP output, and TEFC enclosure. Also cross-references Dayton part number 3TY83.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NEC Article 430 governing motor branch circuits, overload protection, and disconnecting means. Disconnect and lock out all power before removing the existing motor or making any wiring connections. Verify supply voltage and phase rotation match motor nameplate requirements before energizing. Ensure driven equipment coupling or flange is properly aligned to avoid premature bearing wear.