4160 Volt Medium-Voltage Electric Motors
4160-volt electric motors (4.16 kV) are the backbone of North America’s heavy-industrial sector — delivering megawatt-class power with minimal current draw and outstanding energy efficiency.
They’re engineered for continuous duty in demanding applications such as refineries, chemical plants, water utilities, pulp and paper, and aggregate operations, where uptime and torque control are non-negotiable.
Available in Totally Enclosed Fan Cooled (TEFC), Weather-Protected (WPI/WPII), and Explosion-Proof (TEXP) enclosures, every model meets NEMA MG-1, IEEE 841, and CSA C390 standards for medium-voltage performance and safety.
Typical Specifications
Specification Range / Detail
Voltage 4160 V AC (4.16 kV)
Horsepower Range 300 – 3000 HP +
Speed (RPM) 900 / 1200 / 1800
Enclosures TEFC / WPI / WPII / TEXP
Mounting Options Horizontal / Vertical P-Base
Frame Sizes 5000 Frame and larger
Cooling Systems IC411 / IC611 / IC81W (Air-to-Water)
Frequency 60 Hz (Standard) / 50 Hz Optional
Compliance NEMA MG-1 / CSA C390 / IEEE 841 / API 541
Why 4160 V Motors Are the Heavy-Industrial Standard
Massive Power Delivery Supports horsepower ratings into the thousands while keeping current low.
Long Cable Runs Efficient over hundreds of meters with minimal voltage drop.
Reduced Infrastructure Costs Smaller conductors, lower switchgear expense vs. 2300 V at same HP.
Energy-Efficient Operation IE3 / IE4-level designs for long-term savings.
VFD Integration Compatible with medium-voltage drives and soft-start systems.
Enclosure Options
Frame materials include Cast Iron, Fabricated Steel, and Stainless Steel to meet mechanical and environmental needs.
Cooling Systems
Typical Applications
Large-scale compressors and blowers
Refinery and petrochemical process pumps
Mining and aggregate crushers
Pulp & paper mill drives
Wastewater and desalination plants
Power-generation auxiliary systems
Each 4160 V motor is designed for continuous operation under high mechanical and thermal stress while maintaining low vibration and stable torque.
2300 V vs 4160 V Motors
Performance and Reliability
All 4160 V motors are precision-engineered with:
Class H insulation systems for high thermal resilience
RTDs and bearing thermistors for continuous monitoring
Inverter-duty windings for VFD operation
Shaft grounding rings and insulated bearings to prevent electrical pitting
Dynamic balancing and vibration testing to ISO 10816 standards
Request a Quote or Spec Sheet
Looking for a 4160 V industrial motor to power your facility or OEM system?
Our engineering team can assist with voltage selection, cooling system design, and drive compatibility for your application.
Request a Quote or Request Spec Sheet to receive detailed technical data and pricing.