Littelfuse Model ALT-115-X-SW Cross-Wired Alternating Duplex Pump Relay with Switch 95-125V 8-pin Plug-in Water Well Equipment__4" 5" 6" 8" 9" & 10" Submersible Pump Ends__Eight Inch Pump Ends__500 GPM McDonald 92000 Workhorse End Suction

McDonald 92000 Workhorse End Suction Centrifugal Pump Applications

Automatic Units not Recommended for use in Effluent Systems

The Hydromatic HPGR200 base kit provides a reliable base for HPGR grinder pumps when not supported by a guide rail system

and 70 gallons per minute (GPM)

Littelfuse Model ALT-115-X-SW Cross-Wired Alternating Duplex Pump Relay with Switch 95-125V 8-pin Plug-in Water Well Equipment__4" 5" 6" 8" 9" & 10" Submersible Pump Ends__Eight Inch Pump Ends__500 GPM McDonald 92000 Workhorse End SuctionLittelfuse ALT 115 X SW Alternating Duplex Pump Relay Product Description Model ALT alternating relays are used to alternate between two loads. The ALT is commonly used in duplex pumping applications to balance the runtime of both pumps. The Model ALT X has an internal cross connected relay and is used in applications where two high level floats are used. These floats are commonly referred to as lead and lag floats. The Model ALT X SW adds a built in