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Float-operated mechanical alternator switches between two pumps or motors within a duplex system in one open tank
NEMA 1 enclosure protection for use with water, hydraulic oils, and corrosive fluids
Contacts close on liquid rise
Two-level non-alternating unit
This Square D 9038AG1N4 float-operated mechanical alternator for use with water, hydraulic oils, and corrosive fluids switches between two pumps or motors within a duplex system in one open tank. It has a NEMA 1 enclosure for protection and contacts that close on liquid rise. Two-level non-alternating unit Square D switches are manufactured by Schneider Electric. Square D brand pressure, float, and limit switches have been synonymous with safety, quality, and reliable performance for over 100 years. First launched by Detroit Fuse and Manufacturing in 1902, the Square D brand its products continue to earn customer trust today.