Square D 9037HG33F3Z20 230V 1-Phase Float Switch

The Square D 9037HG33F3Z20 is a mechanically operated float switch designed for reliable liquid level control in pumping and tank filling applications. This industrial-grade float switch operates on 230V single-phase power and provides automatic control for sump pumps, sewage pumps, and other liquid handling systems.

Key Features:

• 230V AC, 1-phase electrical rating for standard industrial applications
• Mechanical float operation for reliable, maintenance-free performance
• Rugged construction suitable for wastewater, potable water, and industrial fluids
• NEMA rated enclosure for durability in harsh environments
• Simple installation with cable-suspended mounting
• SPDT contact configuration for versatile control options

The 9037HG series is engineered for commercial and industrial liquid level control where dependable automatic operation is essential. The mechanical float design eliminates the need for external power to the sensing element, ensuring fail-safe operation. Ideal for use in water treatment facilities, industrial processing, building services, and agricultural applications.