Killark® B7MSN Series of hazardous location manual motor starters provide non-reversing manual starting and stopping of motor loads. Rated for indoor and outdoor applications, the copper-free aluminum construction is ideal for harsh and hazardous environments. Available as a "pushbutton" style operator, the internal NEMA-style starter is available in manufacturer configurations including Square D and Cutler Hammer. Note: Overload heaters are required, but not included as standard, and need to be specified based on FLA (Full Load Amps) of motor.