HOLLOSHAFT® Motors for New DOE Standards
This brochure outlines how Nidec Motor Corporation’s U.S. MOTORS® brand addresses new DOE energy efficiency regulations with its vertical HOLLOSHAFT® motor lines. The document compares Inverter Duty and SINEWAVE OPTIMIZED™ models and highlights key features designed to improve reliability, energy efficiency, and protection from inverter-related stress.
Key Points
- As of June 2016, the U.S. DOE mandates NEMA Premium® efficiency levels for vertical motors.
- Two product lines are featured: Inverter Duty (AUSI/RUSI) for variable speed and SINEWAVE OPTIMIZED™ (AUS/RUS) for constant speed.
- SINEWAVE OPTIMIZED™ motors are cost-effective and DOE-compliant for sinusoidal power input.
- Efficiency ratings reach up to 96.2% with thrust capacities up to 30,900 lbs.
- Nidec’s HOLLOSHAFT® motors meet or exceed NEMA MG-1 Table 12-12 and MG-1 Part 31 standards.
- Inverter Duty models include shaft grounding rings, insulated bearings, and INVERTER GRADE® insulation.
- Vertical HOLLOSHAFT® motors are available in 7.5 – 600 HP, 1200 – 3600 RPM configurations.
- Product tables list catalog numbers, voltages, thrust, frame sizes, and list prices.