Nidec ETE661 - The AQUA-SHIELD PRO® motors are designed for pool and spa applications, featuring a switchless design, finned aluminum frame, and 5.5" frame diameter (Category "S" & "J"). They are available in Square Flange and C-Flange options, both premium energy efficient and total horsepower rated. With a 50°C ambient rating, Class B insulation, and a 300 series stainless steel shaft, these motors offer durability and reliable performance in demanding conditions. They are thermally protected and designed for continuous duty. The motors feature a totally enclosed, fan cooled IPX5 enclosure, providing protection against low-pressure water jets and reducing moisture intrusion risks. With triple bearing protection and a finned aluminum frame, these motors ensure efficient operation and improved heat dissipation. They are available with a discount symbol for cost savings. The AQUA-SHIELD PRO® motors are the ideal choice for wet and humid environments, delivering reliability and performance for pool and spa systems.