Nidec Motor Corporation Launches New TITAN II WPI and WPII 449 Frame Motors

Redesign of TITAN I products offer improved operating efficiencies, easier installation

OCT 01, 2018

ST. LOUIS– Oct. 1, 2018 – Nidec Motor Corporation (NMC), a leading global manufacturer of motors, drives and automated systems, has introduced TITAN® II WPI and WPII 449 frame vertical motors available in both HOLLOSHAFT® and solid shaft constructions.

While keeping all of the high thrust capability of its legacy U.S. MOTORS® brand TITAN I 449 frame motors, the TITAN II 449 frame offers a redesigned upper bracket for better environmental protection. The 449 lower bracket has also been redesigned to allow stiffer attachment of the motor to the pump head. This overall stiffer construction has raised its reed critical frequency (RCF) on average 12% and with multiple p-base options (20”, 24.5” and 30.5”) to allow altering the RCF for the best variable speed pumping system design to stay out of the resonance region.

The redesign of the upper and lower brackets also allows a change to the airflow to better cool and increase motor efficiency. With a lower operating temperature, the life of the motor’s insulation can be extended. The output horsepower has also been increased to 500HP.

In addition to the redesigned WPI 449 frame, Nidec Motor Corporation has also launched a brand new WPII 449 frame offering. WPII enclosures are excellent choices for indoor or outdoor use; typically have lower initial costs, and are more efficient than totally enclosed motors of the same rating.

For more information about TITAN motors, visit:


About Nidec Motor Corporation
NMC is a leading manufacturer of commercial, industrial, and appliance motors and controls. The NMC product line features a full line of high efficiency motors, large and small, which serve industrial, residential, and commercial markets in applications ranging from agriculture, water treatment, mining, oil and gas, and power generation to pool and spa motors, air conditioning condensers, rooftop cooling towers, and commercial refrigeration. It also makes motors, controls, and switches for automotive and commercial markets. For more information, visit

Parent company Nidec Corporation, headquartered in Kyoto, Japan, is closely associated with approximately 300 group companies all over the world. Nidec is the world's No.1 comprehensive motor manufacturer handling "everything that spins and moves,” miniature to gigantic.