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Liquid Level Switches

Description

 

 

The LS liquid level switch is a highly reliable method of detecting fluid levels. Solid state construction ensures many years of trouble-free operation. The hermetically sealed sight glass provides high working pressures without leakage. The liquid level is optically detected through a sight glass. Fluids can be as clear as water or as dirty as crude oil.

The switch must be installed horizontally and must have at least 2" of distance between it and the vessel wall or pipe. Line voltage is wired directed to the switch, removing the need for step down transformers. A 1/2" conduit boss is provided for the mounting of a junction box. Two thread models are available for various applications.

 

Features

  • Body made of 1-1/8"
    Hex Nickel Plate Steel
  • Solid state switching
  • Serviceable without loss of fluid
  • 1000 PSI max working pressure
  • UL listed, file number E141577
  • Switch rated at over 1 million cycles
  • Non-invasive liquid sensing
  • Suitable for refrigerants and other
    industrial fluids non-corrosive to steel
    and glass
Catalog NumberConnection SizeVoltage (60/80 Hz)Resistive Rating (AMP)Contacts with liquid presentRepl. Module No.Min/MaxFluid Temp
LS-120 1/2" NPT 120 V 0.5 Closed 180-001 0°F/200°F
LS-120A 1/2" NPT 120 V 0.5 Open 180-002 0°F/200°F
LS-120-W 3/4"-16 UNJF-3A 120 V 0.5 Closed 180-001 0°F/200°F
LS-120A-W 3/4"-16 UNJF-3A 120 V 0.5 Open 180-002 0°F/200°F
LS-240 1/2" NPT 208/240V 0.25 Closed 180-003 0°F/200°F
LS-240A 1/2" NPT 208/240V 0.25 Open 180-004 0°F/200°F
LS-240-W 3/4"-16 UNJF-3A 208/240V 0.25 Closed 180-003 0°F/200°F
LS-240A-W 3/4"-16 UNJF-3A 208/240V 0.25 Open 180-004 0°F/200°F
LS-24 1/2" NPT 24V AC/DC 0.5 Closed 180-007 0°F/200°F
LS-24A 1/2" NPT 24V AC/DC 0.5 Open 180-008 0°F/200°F
LS-24-W 3/4"-16 UNJF-3A 24V AC/DC 0.5 Closed 180-007 0°F/200°F
LS-24A-W 3/4"-16 UNJF-3A 24V AC/DC 0.5 Open 180-008 0°F/200°F
LS-240A-LT 1/2" NPT 208/240V 0.25 Open N/A -40°F/200°F