Jerguson® Side-Mount Horizontal Float Operated Magnetic Level Switch

Jerguson® products are also available under the Magne-Sonics® brand as required based on approved vendor specifications.


•Tri-Magnet Switching for Unparalleled Reliability
•Vibration Resistant
•316 Stainless Steel Trim
•ASME B31.1 & B31.3 Design


The switch mechanism is based on a unique three-dimensional magnet design where the snap action is accomplished by the utilization of magnetic repulsion and attraction. The primary magnet mounted on the float rod causes the secondary magnet to rotate as it passes up and down. The tertiary switch magnet is repelled by the secondary and snaps to the opposite side. This causes the cradle to pivot, moving the push rods, which operate the switch contacts. The result is positive snap action, interlock switching…no springs…no spring problems!

The Float Chamber


The flanged chamber construction of this series of horizontal controls makes them a very serviceable level control solution for petrochemical, power generation and OEM applications.
The unique three-magnet system provides reliable switching for applications such as level alarm, safety shutdown and pump control in product storage tanks, gas scrubbers, process vessels, and high pressure steam generators.
Single switch only available. Chambers are designed to ASME B31.1, Power Piping Code, and ASME B31.3, Chemical Plant and Petroleum Refinery Piping Code.


Brochure: Side-Mount Horizontal Float Operated Magnetic Level Switch

IOM: JS500.05 Horizontal Float Switch IOM