Nidec X50P3B - The General Purpose Three Phase, Totally Enclosed Fan Cooled (TEFC) motors listed in this section are versatile and reliable. They are UL® listed and CSA® certified, ensuring quality and safety. The motors have various features such as cast iron inner bearing caps (180 Frame and larger), regreasable bearings (180 Frame and larger), and lifting provisions (180 Frame and larger). They are designed for a 40°C ambient temperature and offer NEMA® Design B performance. The motors have sealed bearings (56-140 frame) or shielded bearings (180 Frame and larger) for durability. Depending on the catalog number, the motors may have different specifications. Those beginning with "XS" or "X" feature a cast iron frame, class F insulation, and a 1.00 service factor on 60 Hertz power. They also include stainless steel nameplates, zinc-plated hardware, and a shaft slinger for IP54 protection. These motors are ideal for hazardous locations and can be used for pumps, fans, compressors, conveyors, and tools classified by class and group requirements.