The Schneider Electric Square D 9037HR33R is a float switch designed for precise liquid level control in industrial systems. This specific model operates with a reverse action mechanism, meaning its electrical contacts respond inversely to typical float switch behavior. This configuration is particularly useful in applications where the control logic requires contacts to open as the liquid level rises and close as it falls, offering a distinct operational characteristic for specialized automation setups.

Technical details

• Series: Square D 9037
• Actuation Type: Reverse Action Float Switch
• Contact Configuration: SPDT (Single Pole Double Throw) - inferred from typical float switch operation and reverse action
• Switching Action: Contacts open on liquid rise, close on liquid fall
• Mounting Type: Vertical mounting (typical for this series, verify with datasheet)
• Enclosure Rating: NEMA 1 (general purpose indoor use, verify with datasheet)
• Maximum Operating Temperature: 140°F (60°C) (typical for this series, verify with datasheet)
• Electrical Rating: 15A @ 120VAC, 8A @ 240VAC, 1/2 HP @ 120VAC, 1 HP @ 240VAC (verify with datasheet for specific model variations)

Applications & compatibility

This float switch is commonly employed in pump control systems for sumps, tanks, and wastewater management. Its reverse action makes it suitable for applications requiring a pump to stop when the liquid level reaches a high point and start when it drops to a low point, or for overflow prevention logic. It is compatible with various control panels and automation systems that utilize standard float switch inputs.

Available from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the Schneider Electric Square D 9037HR33R or contact our technical team for cross-reference assistance with compatible Square D level control components.