The MP800 Series Combined Manual and Automatic Fire Pump Controllers allow the pump to be run at variable speed to limit the system pressure to a predetermined point with varying suction pressure. These controllers are for use on Variable Speed Pressure Limiting applications. Sizes range from 15 to 350 horsepower, 200 to 600 volts (480 volts max. when supplied with transfer switch), 50 or 60 Hz. Only the highest quality components, all UL listed or UL recognized, are used throughout to assure the best possible reliability. The cabinet is fabricated from heavy gauge reinforced steel with drip-proof hood. The controller is completely wired, assembled, and tested at the factory before shipment and ready for immediate installation.