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Measurement Specialities LS-303-51N Horizontal Liquid Level Sensor

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Brand: Measurement Specialities  MPN: LS-303-51N 
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162 in Stock, despatched same dayAdditional quantity lead time 4 months

A side entry, horizontally mounted float switch type liquid level sensor that is manufactured in nylon 6.6 and is suitable for fuels and oils. Can be used for sensing rising or falling liquid levels (switch normally open or normally closed) simply by rotating mounting by 180°. Typical applications include level sensing of cooking oil, fuel, alcohol, sump levels, etc.

  • External or internal fitting
  • Easy installation
  • Reliable reed switch operation
  • High operating temperature
  • Sealing components Nitrile washer and grommet
  • Normally closed with float horizontal
  • 2x 18AWG 32/0.2mm PVC insulated, 0.5m length
  • UL E98428 listed model
  • Gentech LS303-51N

Contact configurationSPST
Max. current1A
Max. voltage200V DC/250V AC
Max. power40W
Material: bodyGlass-filled Nylon 6.6
Material: floatGlass-filled Nylon 6.6
Operating temperature-30°C to +130°C
Min. liquid S.G.0.85
Overall length87.89
Float diameter17.3mm
Order code61-1362
Mftrs. typeLS-303-51N

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26 April 2012 Question by: stuart | Product code: 61-1362
Q. i also need float switches to turn a pump on and off in the same tank. one to turn the pump on at low level linked to another float to turn the pump off when tank full.basically to stop pump running every few i need to run this through a small contactor/relay? i am presuming i do. thanks in anticipation of your answer.
A. Thanks for your enquiry Stuart. The circuit would require either 1 or 2 small relays dependent on the current draw and how the circuit is wired up, it shouldn't require a contactor but can depend on the current draw.

17 April 2012 Question by: jay | Product code: 61-1362
Q. hi i need a float switch that when the water level is high and the float is in the up position there is no current (pump off) and when the water level drop and the float is in the down position the current is on (pump on) do u have one?
A. Hi Jay, thanks for your question. This product will do it, as it can be changed from normally open to normally closed by rotating the device 180Deg. But in one condition the unit would have to end up being submerged to lift the float to turn it off.


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