LS-3 Series Single Point Float Level Switch

• Engineered Plastics
• Ideal for Shallow Tanks
• Low Cost/High Volume Use

The LS-3 Series Liquid Level Switches feature a durable reed switch design for long, maintenance-free performance with precise repeatability (≤1% deviation). These hermetically sealed switches resist shock and vibration, making them ideal for shallow tanks, compact systems, and high-volume OEM use. The LS-3 Micro, the smallest model in the series, is perfect for medical devices, potable water, and compact appliances-all available in FDA/NSF-compliant materials.

Product Line

• Level Sensors & Switches

Actuation Level

• 0.75
• 0.5625
• 0.375
• 0.625
• 0.8125
• 0.5
• 0.4375
• 0.81
• 0.6875

Electrical Termination

• 24" Long, 22 AWG, PVC Leads
• 24" Long, 22 AWG, Teflon Leads
• 24" Long, 22 AWG, (2) Conductor PVC Cable

Float Diameter Range

• 0.625 to 1.86 in

Float Material

• Polypropylene
• (Solid)
• PVDF
• Polysulfone
• Buna N
• Polypropylene (Hollow)

Wetted Materials- Float

• Buna-N

Maximum Pressure Rating

• 15 PSI
• 50 PSI
• 150 PSI

Maximum Voltage Rating

• 240 VAC

Maximum Operating Pressure @70 °F

• 150 PSI

Minimum Liquid Specific Gravity

• 0.45

Minimum Voltage Rating

• 120 VAC

Model Type

• LS-3

Mode of Operation

• Inverse, 100K

Mounting Type

• G 1/8"-28
• 3/8"-16
• M12x1.75
• 1/8" NPT Male

Mounting Orientation

• Vertical

Primary Material Of Construction

• Plastic

Sensor Type

• Float

Stem & Mounting Material

• Polypropylene
• Polysulfone
• Nylon
• PVDF

Wetted Materials- Stem

• Nylon

Supply Voltage

• 240 VAC

Switch Operation

• Normally Open
• (Reversible)
• Normally Closed
• (Reversible)
• "Normally Open (Reversible)"

Switch Ratings Range

• 20 amps

Switch Ratings Range

• 20 amps
• Switch Type
• SPST (50 VA)
• SPST (20 VA)

Wetted Material

• Nylon
• Polysulfone
• Epoxy
• Polypropylene
• Brass
• Kynar
• Ceramic Magnet
• PVDF
• Kynar
• Berylium Copper - Replace 2
• Buna N
• Ceramic Magnet
• Buna N
• Epoxy

Wrench Flats

• 1/2

Product Family

• Single-Point Level Switch

Product Type

• Single Point

Maximum Operating Temperature [°F]

• 250 °F

Minimum Operating Temperature [°F]

• -40 °F