Description
Square D 9037HG32 Float Switch Overview
The Schneider Electric (Square D) 9037HG32 is a 2.5-inch, 2-pole float switch designed for dependable liquid level detection and control in HVAC, hydronic, and industrial applications. Featuring a close-on-rise switching action, the contacts close as the liquid level rises to the float position — making it ideal for pump start, high-water alarm, and fill-valve control circuits.
Key Features
- 2.5″ float ball for accurate and responsive liquid level sensing
- 2-pole (2P) switching configuration for versatile circuit control
- Close-on-rise action: contacts close when liquid level rises to the float
- Rugged Square D construction for long-term reliability in demanding environments
- Suitable for pump control, high-level alarms, and fill-valve applications
- Part of the trusted Square D 9037 Series float switch family
Common Applications
- Boiler and hydronic system water level control
- Sump pump activation and high-water alarm circuits
- Cooling tower and reservoir level monitoring
- HVAC condensate and liquid level management
- Industrial liquid handling and process control
Product Specifications
- Brand: Schneider Electric (Square D)
- SKU / Part Number: 9037HG32
- Float Ball Diameter: 2.5″
- Number of Poles: 2 (2P)
- Switching Action: Close on Rise
- Series: Square D 9037







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