Jerguson® JMLS Horizontal Mount Magnetic Level Switch

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



• Magnetic Snap-Actuation
• All 316SS Wetted Parts
• SPDT or DPDT Contacts
•Integral Conduit Box
• Magnetic Latching
• CSA Certified, Class I, Division 1, Group C & D, NEMA 4X
• Single Seal Per ISA 12.27.07-2011




Operation is achieved using the time proven principle of repelling magnetic forces.  One permanent magnet, the primary magnet, forms part of a float assembly which rises and falls with changing liquid level.  The secondary magnet is positioned within the enclosure so that the adjacent poles of the two magnets repel each other through a non-magnetic, stainless steel barrier.  A change in liquid level moves the float through its permissible range of travel causing the float magnet to pivot and repel the switch magnet.  The resulting snap action of the repelling magnets actuates the switch.