Description
Schneider Electric (Square D) 9037HG30Z20 Float Switch Overview
The Schneider Electric (Square D) 9037HG30Z20 is a heavy-duty float switch engineered for dependable liquid level detection and control in HVAC, hydronic, boiler, and industrial fluid management applications. Featuring a close-on-rise switching action, the contacts close as the liquid level rises to the set point, making it ideal for pump control, high-water alarms, and automatic fill or shutoff systems.
Key Features
- Close on Rise switching action — contacts close as liquid level rises
- 50# MAX float rating for reliable operation across a range of fluid applications
- Designed for use in boiler, hydronic, HVAC, and industrial liquid level control systems
- Rugged construction from Schneider Electric’s trusted Square D product line
- Suitable for pump start/stop, high-level alarm, and automatic level control circuits
- Engineered for long service life and consistent switching performance
Application
The 9037HG30Z20 float switch is well-suited for a wide range of liquid level control tasks including boiler feedwater systems, condensate receivers, sump and sewage pump control, cooling tower makeup water, and HVAC hydronic system monitoring. The close-on-rise configuration ensures the switch activates protective or operational circuits when liquid reaches the designated level.
Product Specifications
- Manufacturer: Schneider Electric (Square D)
- Model / SKU: 9037HG30Z20
- Switch Action: Close on Rise
- Float Rating: 50# MAX
- Product Type: Mechanical Float Switch
- Series: 9037
Why Choose Square D Float Switches?
Square D by Schneider Electric has been a trusted name in electrical control components for over a century. Their 9037 series float switches are recognized for robust construction, accurate switching, and compatibility with a broad range of industrial and commercial HVAC applications — delivering the reliability that contractors and facility managers depend on.
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