Square D By Schneider Electric 9038AG1N4 Open Tank Mechanical Alternator NEMA 1 Two-Level Non-Alternating

The Square D 9038AG1N4 is a float-operated mechanical alternator designed for duplex pump systems in open tank applications with water, hydraulic oils, and corrosive fluids. This two-level non-alternating control unit provides reliable, mechanical switching between two pumps or motors, eliminating the need for electronic controls in demanding industrial environments.

Key Features:

• Four normally closed, snap action, DPST-DB (double pole single throw, double break) form YY contacts
• NEMA 1 enclosure for protection with contacts that close on liquid rise
• Pedestal mounting with vertical float rod angle for operating in any position
• Screw clamp terminals for electrical connection with 4 knockouts for 1/2 inch or 3/4 inch conduit
• Operating temperature range of -22°F to 220°F
• Stainless steel float measuring 7.0 inches in length and 7.0 inches in diameter
• Rated for 575 VAC, up to 1 HP motor control

When liquid level rises to the first level, one pump turns on, and both pumps automatically activate when a peak condition occurs and the liquid level continues to rise. The unit offers electrical durability of 100 cycles and mechanical durability of 300 cycles, with UL, CSA, and CE certifications for reliable performance in industrial applications.