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3/4" FNPT Inlet
and the OTC11PC Socket for the 11-Pin Models
Stainless Steel Shaft and Hardware
McDonald 404011EF Effluent Submersible Pumps can handle up to 3/4" solids with 2" discharge
or a 380-416V 50Hz system
Littelfuse Model ALT-230-S Alternating Duplex Pump Relay 195-250V 8-pin Plug-in Water Filtration__Filters__Speciality Filters 3/4" FNPT InletLittelfuse ALT 230 S Alternating Duplex Pump Relay Product Description Model ALT 230 S 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 S is used in single high level float applications. When the float switch opens, the alternating relay changes state forcing the other pump to run the next time the float closes Littelfuse ALT 230 S
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