Description
The Schneider Electric (Square D) 9037HW30 is a heavy-duty float switch engineered for dependable liquid level detection and control in demanding HVAC and industrial environments. With a NEMA 4 (NEMA IV) rated enclosure, this float switch delivers robust protection against water ingress, windblown rain, splashing, and hose-directed water — making it an ideal choice for both indoor and outdoor installations where moisture exposure is a concern.
The close-on-rise switching action means the contacts close as the liquid level rises, enabling automatic pump start, valve activation, or alarm triggering when a set liquid level is reached. This functionality is critical for sump applications, condensate management, boiler feed systems, cooling towers, and other hydronic or process fluid level control scenarios.
Key Features
- NEMA 4 (NEMA IV) watertight enclosure for indoor and outdoor use
- Close-on-rise switching action for automatic level-based control
- Rugged construction designed for long-term reliability in wet environments
- Compatible with pumps, valves, alarms, and other control devices
- Trusted Schneider Electric (Square D) quality and engineering
Typical Applications
- Condensate and sump pump control
- Boiler feed and hydronic system level monitoring
- Cooling tower and chiller basin level control
- Process fluid management
- High-water alarm systems
Product Specifications
- Brand: Schneider Electric (Square D)
- Model / SKU: 9037HW30
- Enclosure Rating: NEMA 4 (NEMA IV)
- Switch Action: Close on Rise
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