Description
Johnson Controls F59H-1 Liquid Level Switch Overview
The Johnson Controls F59H-1 is a reliable liquid level switch engineered for sump operation applications. Featuring a Double Pole Single Throw (DPST) configuration and fixed mounting design, this switch delivers dependable level detection in commercial and industrial HVAC and mechanical systems. It ships ready to install with a 3-foot cable and two weights included, reducing the need for additional accessories.
Key Features
- Sump operation design for reliable liquid level detection
- DPST (Double Pole Single Throw) switch configuration
- Fixed mounting for secure, stable installation
- Includes 3-foot cable for flexible positioning
- Includes two weights for proper float operation and calibration
- NEMA 1 enclosure rating for indoor applications
- Wide voltage compatibility: 120/240 VAC and 32 VDC
Specifications
- SKU: F59H-1
- Brand: Johnson Controls
- Switch Type: DPST
- Operation Type: Sump
- Mounting: Fixed
- Enclosure Rating: NEMA 1
- Voltage Rating: 120/240 VAC and 32 VDC
- Cable Length Included: 3 feet
- Weights Included: Two
Application
The F59H-1 is ideal for use in sump pits, condensate collection systems, boiler rooms, and other mechanical spaces where automatic liquid level monitoring and control is required. Its NEMA 1 enclosure makes it suitable for clean indoor environments, while the broad voltage range ensures compatibility with a wide variety of control circuits.







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