Square D 9037HG31R Closed-Tank Float Switch Side Mount NEMA 1 Contacts Open on Rise

The Square D 9037HG31R is a closed-tank float switch designed for reliable liquid level control in industrial and commercial applications. This rugged switch features a side-mount configuration with a 2-1/2" NPT right-angle bushing for power circuit connection, making it ideal for pump control, tank monitoring, and automatic fill/drain systems.

Key Features:

• Contacts open on rise operation for pump shutdown or alarm activation when liquid level increases
• Side mount design with right float position for flexible installation options
• 90-degree float rod angle with 7-inch offset provides clearance for tank walls and obstructions
• NEMA 1 general-purpose enclosure suitable for indoor applications
• 2-1/2" NPT bushing connection for secure mounting and electrical connection
• Durable construction designed for long service life in water, wastewater, and compatible liquid applications
• Closed-tank design prevents contamination and allows for pressurized or sealed tank installations

This float switch is commonly used in sump pump control, water storage tanks, industrial process vessels, and HVAC condensate systems where reliable level detection is critical. The contacts-open-on-rise configuration makes it particularly well-suited for high-level alarm applications or for shutting down pumps when tanks reach capacity.