Booth 2246. Severe duty motors include premium or standard efficiencies in ratings from ½-500 HP. Non-stock (to 2000 HP) motors are delivered in just 10 working days. Motors feature cast iron construction for extra durability. They are designed for a wide range of processing industry conditions and are built with Class F insulation, Class B temperature rise and a 1.15 service factor. Motors through 575 volts use ISR™ Inverter Spike resistant wire, making them “Inverter-Ready.” For severe environmental operating conditions, Chemical Processing motors provide extra protection with corrosion resistant epoxy finish, regreasable ball bearings, oversized rotatable cast iron conduit boxes, stainless steel nameplate and corrosion resistant hardware.