Allen-Bradley 1109 Open Type , 512V/513V Vacuum Combination Starters, and 1232V/1233V Vacuum Pump Control Panels feature sealed contacts to prevent dirt and other contaminants from causing premature wear to contactors or interference with mechanical operation. The starters and control panels are for such applications as mining, oil pumping, petrochemical, rock crushing, and pulp and paper that require heavy-duty cycling of motors.
Rockwell Automation Inc., 10701 Hampshire Ave. S, Bloomington, MN 55438, (800) 223-5354, rockwellautomation.com