Johnson Pumps Float Switches
When it comes to reliable automatic bilge pump operation, Johnson Pumps has established itself as a trusted leader in marine float switches. Part of the SPX FLOW group and serving the marine industry for decades, Johnson Pumps offers a comprehensive range of float switch solutions engineered specifically to handle the demanding conditions of bilge water management.
Advanced Switch Technologies for Marine Applications
Johnson Pumps provides three primary switch types: the top-of-the-line digital Ultima Switch, an Electro-Magnetic Float Switch, and a traditional Float Switch, all mercury-free. Each design addresses specific installation requirements and performance needs for marine bilge pump automation.
The standout innovation in the Johnson Pumps float switch lineup is the Ultima Switch, which represents a significant departure from conventional mechanical designs. The solid-state electronic Ultima Switch uses patented Mirus field effect detector cells producing micro-electrical fields that detect disruptions caused by water and fluids. This non-contact sensing technology offers distinct advantages: detector cells are totally sealed and never in contact with water, will not corrode, and are not affected by oil or foreign debris. The Ultima Switch is rated to handle pumps up to 20A at 12V or 10A at 24V, making it suitable for most recreational and commercial marine applications.
Electro-Magnetic and Traditional Float Switch Options
For boaters seeking proven mechanical reliability, Johnson Pumps offers the Electro-Magnetic Float Switch. With sealed, solid-state electronics and an enclosed float area that keeps debris out, this switch offers dependable operation and long service life. The switch activates the pump at 2" water level and deactivates at 3/4" water level, providing effective bilge management while minimizing unnecessary pump cycling.
The traditional AS888 Automatic Float Switch rounds out Johnson Pumps' offering with a time-tested mechanical design. The AS888 automatic switch has a time-proven micro switch without mercury, and it attaches to any SPX Johnson Pump Marine bilge pump through the clip-on "T-slot" and can be used with 6, 12, 24 or 32 V systems. An anti-spike feature prevents rapid on-off cycling and turns on with an audible click before water can reach unacceptable levels.
Integration with Johnson Cartridge Bilge Pumps
Johnson Pumps float switches are designed to attach to the SPX FLOW Johnson Pump Cartridge bilge pumps, ensuring seamless compatibility and straightforward installation. This integration allows boaters to upgrade manual bilge pumps to automatic operation or replace aging switches with modern, more reliable alternatives. Whether you're outfitting a new vessel or maintaining an existing bilge system, Johnson Pumps float switches deliver the automatic water-level monitoring that provides peace of mind on the water.