-43 Small Size - Engineered Plastics LS-3 Series - Offers High Reliability, Compact Size and Low Costs in NPT, Straight and Metric Threads Ideal for shallow tanks or restricted spaces, or for any low-cost, high volume use. LS-3 Series are available in FDA approved materials, consult GEMS for details. Polysulfone Float Polypropylene Float (Hollow) FDA Polypropylene Float (Solid) Buna N Float ALL-PVDF FDA NSF NSF Wetted materials of construction comply with FDA food contact regulations. For water based liquids, with limited use in oils and chemicals. Features a low specific gravity float offering broad chemical compatibility. With Polypropylene stem and float, switch offers broad chemical compatibility. Dimensions 1/8" NPT 17/32" (13.4 mm) L1= Switch actuation level, nominal (based on a liquid specific gravity of 1.0). 1/2" HEX Polysulfone Float: 3/4 (19.0 mm) Alternate Mountings 3/8"-16 Straight Thread Polypropylene Float (Hollow): 13/16 (20.6 mm) L 1 2-3/32" (53.2 mm) 1-9/16" (39.7 mm) 1" (25.4 mm) Stem and float of corrosion-resistant PVDF for ultra-pure applications. Ideal for oils and fuels. G1/8" 1/8"-28 BSP .390" REF. (9.9mm) Polypropylene Float (Solid): 9/16 (14.3 mm) .14" (2.6mm) 1/2" HEX M12x 1.75 Straight Thread .475" REF. (12mm) .315" REF. (8.0mm) 9/16" HEX .14" (3.6mm) 5/8" HEX .20" (5.1mm) Buna N Float: 13/16 (20.6 mm) 1" DIA (25.4 mm) Electrical Termination PVDF Float: 1/2 (12.7 mm) Lead Wires Cable Cable Common Specifications Electrical Termination: No. 22 AWG, 24 L., PVC Lead Wires. On BSP and Metric mounting: PVC Jacketed 2-Conductor No. 22AWG Cable. PVDF unit: No.22 AWG, FEP Teflon(R) Jacketed, 24 - 26. Approvals: U.L. Recognized - File No. E45168; CSA Listed - File No. 30200. CE Declaration Available Upon Request. Switch SPST: 20 VA, 120-240 VAC. Units are shipped N.O. unless otherwise specified. Selectable, N.O. or N.C., by inverting float on unit stem. How To Order - Select Part Number based on specifications required. Materials Stem and Mounting Float Polysulfone Polysulfone Polypropylene (Hollow) Min. Liquid Pressure,** Operating Temperature Sp. Gr. PSI/Bar, Max. -40 F to +225 F .75 50/3 (-40 C to +107 C) .60 50/3 Polypropylene Polypropylene (Solid) Nylon PVDF D-6 Buna PVDF www.gemssensors.com .90 .45 .86 150/10 150/10 50/3 Mounting Type Part Number 1/8" NPT 42295 1/8" NPT 3/8"-16 G 1/8"-28 M12x1.75 1/8" NPT 3/8"-16 142505 171517 171518 189739 116826 171514 -40 F to +176 F (-40 C to +80 C) M12x1.75 189787 -40 F to +250 F (OIL) (-40 C to +121 C [OIL]) 1/8" NPT 162745 -40 F to +176 F (-40 C to +80 C) M12x1.75 189786 -40 F to +250 F (-40 C to +121 C) 1/8" NPT -40 F to +225 F (-40 C to +107 C) -40 F to +176 F (-40 C to +80 C) -40 F to +150 F (-40 C to +66 C) **Maximum Pressure at 70F (30C) - Stock Items. 173250 Accessories Available in OEM Quantities: Jam Nut, Gaskets, and Slosh Shields. FLOAT TYPE Unique Features Make These LS-3 Models Special These small switches feature unique configurations for special applications. Part No. 142545 With Slosh Shield Part No. 46999 Bottle Level Part No. 76707 For Low Level For external mounting on tanks too small to accommodate internally mounted switches. (See note below) For detecting levels as low as 5/8 from tank bottom. Use in water, gasoline, some oils and chemicals. Cut-away version shown Compact, all-polypropylene switch with slosh shield is ideal for use with turbulent liquids in small tanks. FDA approved materials. 1/8"-27 NPSM THD. 1/8" NPT 17/32" (13.4 mm) 2-3/32" (53.2 mm) 1-1/4" ( 31.7 mm) 1/8" NPT 17/32" (13.4 mm) 1/2" HEX (12.7 mm) 3-15/32" (88.1 mm) 9/16" (14.3 mm) 1/2" HEX COLLAR 2-3/32" (53.1mm) 1-13/16" ( 46.1 mm) 15/16" (23.7 mm) 15/16" (23.7 mm) REF. 1-9/16" (39.7mm) 1-9/16" (39.7 mm) 1/4" NPT 1-7/8" DIA. (47.6 mm) 1-1/4" DIA. (31.7 mm) 1/4" NPT 1-9/16" DIA. (39.6 mm) Order By Part Number 142545 46999 76707 All Polypropylene (Including Shield) Polysulfone All Polysulfone (Including Collar) Polypropylene (Solid) Polysulfone Buna N Other Wetted -- Brass, Aluminum, Polycarbonate, Viton A Epoxy Min. Liquid Sp. Gr. .90 .75 -- Operating Temperature -40 F to +150 F (-40 C to +65.6 C) -40 F to +120 F (-40 C to +48.9 C) -40 F to +180 F (-40 C to +82.2 C) Pressure, PSI, Max.*** 150 50 20 VA, N.C./N.O. Dry** 20 VA, N.C. Dry Materials Stem and Mounting Float Switch*, SPST Electrical Termination * ** *** No. 22 AWG, 22" L., PVC Lead Wires See "Electrical Data" on Page D-4 for more information. Switch operation is selectable, N.O. or N.C., by inverting the float on the unit stem. Maximum pressure at 70F (30C). L1= Switch actuation level, nominal (based on a specific gravity of 1.0). Consult factory for other available materials. - Stock Items. No. 22 AWG, 72" L; Polymeric Lead Wires No. 22 AWG, 72" L., PVC Lead Wires Note: LS-3 Series Bottle Level Switch is also available with any of the float materials shown on opposite page. Contact GEMS for correct part number. www.gemssensors.com D-7