US Motors - Nidec Motor Corporation
VariTough® – a Commercial Condenser Motor with AEGIS® Protection
VariTough® Inverter Duty Motors are designed for commercial condenser units operating on a VFD. These motors operate in a multi motor environment with one VFD. Motors are designed to meet NEMA MG1-Part 31 design guidelines.
VariTough® motors offer a more effective solution to protect the bearings where “shaft voltage” may be an issue. Each motor has an AEGIS® SGR Bearing Protection Ring included/mounted on the motor, providing an alternative path for electrically grounding the shaft. The ring is included/assembled with the VariTough motors and is sold separately as an accessory kit. See this brochure for additional information.