Century Motors Backed by Regal Rexnord Engineering

At Square One Electric Motors & Pumps, we proudly supply a wide selection of Century Three Phase Motors, built for industrial and commercial operations that demand reliable, efficient power. Century, formerly known as A.O. Smith, is now part of Regal Rexnord—a global leader in electric motor manufacturing with over a century of expertise.

Century’s three phase motors are known for their rugged construction, high torque output, and long-term durability. Designed to perform in high-demand settings like manufacturing, HVAC, agriculture, water treatment, and material handling, these motors are built to meet modern industry standards.

🛠️ Shop Century Three Phase Motors at Square One Electric – All units ship brand new from the nearest stocked warehouse and include a full manufacturer’s warranty.

Why Choose Century Three Phase Motors?

✅ Heavy-Duty Industrial Use
Century three phase motors are engineered to withstand continuous operation in demanding environments such as factories, pumping stations, compressor rooms, and large-scale HVAC systems. Many are built to operate 24/7 without overheating or mechanical fatigue.

✅ High Efficiency for Lower Operating Costs
Century three phase motors are available in NEMA Premium Efficiency models that help businesses meet energy compliance standards, lower electric bills, and even qualify for local utility rebates. These motors provide top-tier performance while reducing total cost of ownership over time.

✅ Wide Range of Horsepower Options
From fractional horsepower units to massive 300+ HP motors, Century offers solutions for nearly every industrial task. You’ll find the right motor for small pumps, conveyors, or large processing equipment—with options for various voltages and torque demands.

✅ Durable Materials & Construction
Century motors are engineered with materials like cast iron frames, sealed bearings, and epoxy-coated windings for added protection. Many models feature IP55-rated enclosures, keeping out contaminants such as dust, moisture, and debris.

✅ Compatible with VFDs
Century’s inverter duty motors are built for compatibility with variable frequency drives (VFDs), allowing for precise control of speed and torque. This is ideal for optimizing processes, reducing mechanical wear, and improving energy usage.

✅ Quick Installation & Versatility
Standard NEMA frames, dual voltage (208-230/460V) designs, and universal mounting bases make Century motors easy to install or retrofit into existing equipment. Many also feature conduit boxes, reversible rotation, and adaptable shaft options.

✅ Application-Specific Models
Century manufactures motors specifically for compressors, cooling towers, grinders, and irrigation systems. Whether you need an extra high service factor, continuous duty rating, or an explosion-proof enclosure, there’s a Century model designed for it.

Common Applications for Century Three Phase Motors

🌀 Commercial & Industrial HVAC Systems

Century motors are found in fan assemblies, rooftop HVAC units, makeup air systems, and cooling towers. Their quiet, continuous operation helps regulate building temperatures while keeping energy usage in check.

🐄 Agricultural Operations

Century three phase motors excel in barn fans, manure pumps, conveyor belts, and grain dryers. With TEFC enclosures and high service factors, they handle tough field conditions, power surges, and fluctuating loads with ease.

🧱 Manufacturing & Processing Plants

Used in chemical mixers, plastic extruders, food processing lines, and paper mills, Century’s motors keep complex systems running with consistent, high-torque output.

💦 Water & Wastewater Management

Century motors drive centrifugal pumps, agitators, grinders, and filtration systems at municipal and private water treatment facilities. Their continuous duty ratings and sealed designs ensure reliable performance in corrosive or wet environments.

🛠️ Industrial Machine Tools

In lathes, mills, boring machines, and metalworking equipment, Century motors provide high torque, constant RPM, and long-term reliability. Their compatibility with VFDs enables precision speed control during intricate machining processes.

Top Features of Century Three Phase Motors

🧰 Need help choosing the right motor or matching an OEM part number?  📞 Contact Our Experts ›

🔎 Popular Century Three Phase Motor Types

Century offers a robust lineup of three phase electric motors designed to meet the rigorous demands of modern industrial, commercial, and agricultural applications. These motors are engineered for durability, energy efficiency, and compatibility with evolving technologies like Variable Frequency Drives (VFDs). Below is a breakdown of the most popular Century three phase motor types, with technical insights into how they perform in real-world conditions.

⚙️ General Purpose Three Phase Motors

Ideal for: HVAC systems, compressors, conveyors, pumps, machine tools, and blowers

Century general purpose motors are engineered for reliable, continuous-duty operation in a wide range of light to moderate industrial applications. These motors are available in NEMA frame sizes such as 56, 143T, 145T, and 182T, and often come with features such as:

• Totally Enclosed Fan Cooled (TEFC) or Open Drip Proof (ODP) enclosures

• Dual-voltage configurations (208-230/460V or 230/460V)

• Class B or F insulation systems for thermal protection

• Ball or sleeve bearings for quiet, efficient rotation

• Manual or automatic overload protection

General purpose motors from Century are designed to offer versatility, durability, and ease of installation, making them a trusted solution for OEMs, contractors, and facility managers alike.

🛡️ Severe Duty Three Phase Motors

Ideal for: Chemical plants, mining, wastewater treatment, foundries, and mills

Century severe duty motors are built to operate reliably in harsh environments that involve abrasive dust, high humidity, and corrosive chemicals. They are constructed with rugged components and protective features such as:

• Cast iron or epoxy-coated steel frames for corrosion resistance

• Sealed bearings and gaskets to prevent ingress of contaminants

• Inverter-duty ready windings for compatibility with VFDs

• High torque output for demanding equipment

• IP55 or IP56 ingress protection ratings for washdown and wet conditions

These motors often meet or exceed IEEE 841 and NEMA MG1 standards, ensuring they are suitable for severe industrial duty cycles and long-term operation under stress.

⚡ High Efficiency Three Phase Motors

Ideal for: Facilities seeking energy savings, utility rebate eligibility, and reduced carbon footprints

Century’s high-efficiency motors, including NEMA Premium® and EISA-compliant models, are engineered to meet or exceed Department of Energy (DOE) efficiency regulations. These motors deliver excellent power factor correction, reduced heat output, and lower electrical consumption—perfect for companies aiming to:

• Reduce operational costs

• Meet green building standards like LEED

• Qualify for energy rebate programs

• Minimize environmental impact

They are available in both ODP and TEFC enclosures, and use high-grade copper windings and precision-balanced rotors to maximize power delivery and reliability. Many are inverter-duty rated, expanding their use with variable speed drives.

🌾 Farm Duty Three Phase Motors

Ideal for: Grain augers, silo unloaders, irrigation pumps, and barn ventilation fans

Century farm duty motors are purpose-built for outdoor agricultural environments, where exposure to dust, debris, fluctuating voltages, and weather is common. These motors are:

• Constructed with weather-resistant housings and corrosion-proof coatings

• Designed with extra-high starting torque to handle uneven and unpredictable loads

• Often include TEFC or Drip Proof enclosures for long-lasting outdoor use

• Available in foot-mount and C-face configurations for flexible installation

Three phase farm duty motors support long duty cycles, are compatible with starter controls, and often operate with thermal overload protection for added safety in rural applications.

🔁 Inverter Duty Three Phase Motors

Ideal for: Applications using Variable Frequency Drives (VFDs), such as conveyors, mixers, and HVAC fans

Century inverter duty motors are specifically designed for use with VFDs, which provide speed modulation and energy savings in motor-driven systems. These motors feature:

• Wide constant torque and variable torque speed ranges

• Class F or H insulation with enhanced voltage spike resistance

• High-frequency laminated steel cores to minimize hysteresis loss

• Shielded or sealed bearings to prevent wear at varying speeds

• Low impedance windings for optimal performance with PWM VFD output

Inverter duty motors help extend the life of motor-driven equipment by delivering precise speed control, quieter operation, and enhanced mechanical performance, especially in applications where loads fluctuate or speed adjustments are frequent.

Related Blog Topics to Explore

Get the most out of your Century motor investment with expert tips and helpful guides from our blog:

🔧 How to Install a Furnace Blower Motor

💡 How to Understand Different Levels of Horsepower (HP)

🔍Understanding Motor Enclosure Types

Why Buy Century Motors from Square One?

• Extensive Inventory – Wide selection of Century motors in stock
  

• Industry Expertise – Our team helps you find, size, and install the right motor
  

• Nationwide U.S. Shipping – Orders ship fast from the nearest warehouse
  

• Hassle-Free Support – Clear return policies and helpful tech support
  

• Reputation You Can Trust – Top-rated service from a motor distributor who knows your industry