The SEW-EURODRIVE KA87R57DRE80/TH/RI is a speed reducer designed for industrial applications, now discontinued by the manufacturer. This three-phase unit operates at either 220-230 V or 380-400 V with a frequency of 50 Hz, and can also handle 254-266 V or 440-460 V at 60 Hz, delivering 1.0 HP with rated speeds around 1440 RPM. Featuring a 4-pole motor and an IP54-rated enclosure, it offers reliable protection against dust and splashing water. The 80 mm dimension indicates the size of the output shaft or mounting interface. You can source this SEW-EURODRIVE speed reducer through BSP Automation, who provide a range of industrial automation components.