01801

**FLOAT TYPE** 

## Large Size – Alloys 

LS-1800 and LS-1900 Series are a Step Above Our Plastic Units for Pressure Capabilities Excellent stability for general use in oils and water. 

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LS-1800 Series –<br>Buna N Float<br>**----- End of picture text -----**<br>


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LS-1800 Series –<br>Teflon [®]  Float<br>**----- End of picture text -----**<br>


Intermediate in size, LS-1800 switches provide long life and dependability to meet a broad range of requirements. 

LS-1900 Series – Buna N Float With large float displacement, switch withstands rough service; is suitable for high viscosity liquids. 

## Dimensions 

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LS-1800 Seeirs LS-1900 Seeirs<br>Buna N olFta Tolfen [®] olFta Buna N olFta<br>ee<br>1/8 "  NPT 1/8 "  NPT 1/4 "  NPT<br>17/32 " 1/2 "  HEX 17/32 " 1/2 "  HEX 21/32 " 5/8 "  HEX<br>(13.5 mm) (12.7 mm) (13.5 mm) (12.7 mm) (16.7 mm) (15.9 mm)<br>SPRING<br>2-15/16 " (22.2 mm)†7/8 " 2-15/16 " (22.2 mm)†7/8 " 3-3/16 " (30.2 mm)†1-3/16 "<br>(74.6 mm) 1-3/4 " (74.6 mm) 1-3/4 " (80.9 mm) 1-13/16 "<br>2-13/32 ["] (44.5 mm) 2-13/32 ["] (44.5 mm) 2-17/32 " (46.1 mm)<br>(61.1 mm) (61.1 mm) (64.3 mm)<br>f T v i t a | 7<br>oe 1-1/4(31.7 mm) "  DIA.  WASHERFLAT (31.75 mm)1-1/4 "  DIA. 1-7/8 " DIA.<br>(47.6 mm)<br>**----- End of picture text -----**<br>


†L1 = Switch actuation level, nominal (based on a liquid specific gravity of 1.0). 

## Common Specifications 

**Electrical Termination:** No.18 AWG, 24˝ L., Polymeric Lead Wires. 

**Approvals:** All Switches on this page are U.L. Recognized – File No. E45168, and are CSA Listed – File No. 30200. 

**Switch Operation:** Selectable, N.O. or N.C., by inverting float on unit stem (except for LS-1800 Series switch with Teflon[®] float). Units are shipped N.O. unless otherwise specified. 

How To Order – Select Part Number based on specifications required. 

||**Material**|**Material**|**Material**||||||
|---|---|---|---|---|---|---|---|---|
|**Series**<br>**Number**|**Stem and**<br>**Mounting**|**Stem and**<br>**g**<br>**Float**|**Other**<br>**Wetted**|**Min. Liquid**<br>**Sp. Gr.**|**Operating Temperature**|**Pressure,**<br>**PSI, Max.**|**Switch***<br>**SPST**|**Part**<br>**Number**|
|LS-1800|Brass|Buna N|316 Stainless<br>Steel, Hysol|316 Stainless<br>.75|Water: to 180°F (82°C)<br>Oil: -40°F to +230°F (-40°C to +110°C)|150|20 VA|**01801**|
||||||||100 VA**|**35651**|
||316 Stainless<br>Steel|316 Stainless<br>Buna N<br>Teflon®||316 Stainless<br>.75|||20 VA|**01807**|
||||||||100 VA**|**35657**|
|||||.65|-40°F to +250°F (-40°C to +121°C)|300|20 VA, N.O.|**01811**|
|LS-1900|Brass|Buna N<br>316 Stainless|316 Stainless<br>Steel, Hysol|316 Stainless<br>.55|Water: to 180°F (82°C)<br>Oil: -40°F to +230°F (-40°C to +110°C)|150|20 VA|**01901**|
||||||||100 VA***|**35676**|
||316 Stainless<br>Steel|||.55|||20 VA|**01907**|
||||||||100 VA|**35682**|



*See “Electrical Data” on Page X-5 for more information. 

- *** LS-1900 100VA unit is UL Resistive Rated. 

**LS-1800 100 VA switches are not U.L. Recognized. 

**A-13** 

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