Johnson Controls F59H-1 DPST Sump Pump Switch External Mounting

The Johnson Controls F59H-1 is a reliable DPST (double pole, single throw) liquid level switch designed for automatic on/off control of sump pumps and open tank applications. This float-operated switch features external fixed mounting with a 3-foot cable for flexible installation.

Key Features:

• DPST switching configuration for complete circuit isolation
• Rated for 1 HP at 120-240VAC or 1/4 HP at 32VDC
• External fixed mounting bracket for easy installation
• 3-foot cable length with conduit wiring
• Phenolic float material for durability
• Maximum liquid temperature rating of 150°F
• NEMA 1 enclosure rating

The F59H-1 operates by starting the motor when the upper weight is submerged approximately halfway and stopping the motor when the lower weight is approximately half-exposed. This simple yet effective design provides dependable liquid level control for sump pump systems, ensuring automatic operation based on water level conditions.