The circular frame SCR rated DC motor uses a rugged rolled steel frame designed for long life in industrial applications. Our circular frame design is a direct replacement for competing motors with similar design structures. Stock and custom motors are available in a variety of enclosures, including drip proof Full Protection (DPFG), drip proof Blower Ventilation (DPBV), fully enclosed fan cooling (TEFC), fully enclosed non-ventilated (TENV), fully enclosed ventilation (TEAO), and fully enclosed unit cooling (TEUC).