LFS70 Small Size Multi-Point Float Level Switch

Brand: Intempco Controls, Inc

The LFS70 small size multipoint level switches feature the rugged durability of stainless steel construction.

Ideal for tanks less that 48" (122 cm) in height. The LFS70 uses the highest quality reed switches with ratings of 20 VA, 100 VA, 250 VA actuated by a magnet in the float.

As the float rises and falls, the magnetic field causes the switch inside the stem to open and close. User specifies up to 4 actuation points.

To save space and simplify wiring, Intempco can incorporate a temperature sensor in the end of the float stem.

Three sensor types are available: resistance temperature detectors (RTDs) or Thermocouples for continuous output, and thermistors for switch actuation.

Connection heads of various types are available to meet environmental application needs. For mounting, NPT fittings are standard but sanitary fittings and flanges are also available.

Reliable operation and simple design makes the LFS70 an excellent choice for many level switching applications.
  • Compact design for restricted spaces
  • Probe lengths to 48” (122 cm)
  • Actuation levels 1 to 4 user specified
  • All stainless steel wetted parts available
  • NPT male fittings standard, many others available
  • High quality Teflon® wiring


Approvals & Certifications

  • CSA Class I, Div. 1, Groups B, C, D, Class II, Div. 1, Groups E, F, G, Typical 4X
  • FM Class I, Div. 1, Groups B, C, D, Class II, Div. 1, Groups E, F, G, Typical 4X

Conduit Connection

  • 1/2” NPT
  • 3/4” NPT

Cover Material

  • Screw & Flip Cover: Aluminum Die Cast
  • Screw Cover: Cast 316 Stainless Steel
  • Screw Cover: Polypropylene

Electrical - Free Leads

  • 22 AWG Stranded, PTFE Insulation

Electrical Rating

  • SPDT: 20 VA
  • SPST: 20-250 VA

Enclosure, Body Material

  • Cast Aluminum
  • Cast Stainless Steel

Environmental Protection

  • IP65
  • IP66
  • NEMA 4
  • NEMA 4X

NPT Connection

  • 1” NPT Male
  • 1-1/2” NPT Male
  • 1-1/4” NPT Male
  • 2” NPT Male
  • 3/4” NPT Male

Operating Pressure

  • Maximum

Sensor, Probe Material

  • Probe: 316 Stainless Steel

Sensor, Probe Style

  • Float

Stem Material

  • 316 Stainless Steel

Switch Type

  • SPDT
  • SPST

Temperature Range

  • -40° to 150° C (-40° to 300° F)

Wetted Materials

  • Fitting, Float: 316 Stainless Steel
  • Float: Buna-N
  • Float: Polypropylene

  • Water Based Liquids
  • Acids Compatible with Stainless 316
  • Hydraulic and Other Clean Oil Applications
  • Chemical Holding Tanks with Clean Liquids
  • Measurement of Liquid Levels in Mobile Equipment
  • Ideal for Many OEM Applications
  • Not Recommended Where Liquids are Dirty or Sticky

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