Square D Type F Two speed manual starters provide overload protection and manual On-Off control for small single phase, two winding AC motors. Two mechanically interlocked units prevent inadvertent operation. Enclosure is sheet steel with wrap around thermoplastic cover for convenience of wiring. Overload heater elements are ordered separately to match motor data. Units are UL Listed, CSA Certified and CE Marked for global applications. Fractional Motor Starters. Designed for fractional single phase motors up to 1 HP. Provides easy manual On-Off control of small motors. Provide melting alloy overload protection for motors. Intended for industrial and commercial applications. Enclosed or open versions to suit most application environments. Can be easily installed. UL, CSA and CE approvals. Series F operating mechanism is an enclosed, field-replaceable, modular design. Series F Type 3R covers have side opening construction.