Large Size - Engineered Plastics LEVEL SWITCHES - SINGLE POINT Select from these Engineered Plastics for Aggressive or Ultra-Pure Liquids Each of these series offers unique features. Choose from this selection when all-plastic material is desirable and tank space is not restricted. LS-30 Series- Polysulfone LS-74780 - All CPVC LS-1900TFE LS-1700TFE For water-based liquids, with limited use in oils and chemicals. Cost is suited for high volume OEM use. Polysulfone material of construction complies with FDA food contact regulations. Particularly well suited for rough service. Ideal for use in chemical and plating applications. Resists build-up of foreign material or sticky media. Float travel remains uninhibited in viscous or corrosive liquids. SPDT switch. A medium-size solution for ultra-pure liquid level sensing. Made of corrosion resistant PTFE for low particle generation. Dimensions LS-30 Series LS-74780 LS-1900TFE LS-1700TFE (R) POLYMERIC JACKETED LEAD WIRES 1/4 NPT 5/8 HEX (15.9 mm) 21/32 (16.7 mm) 1-1/4 (31.8 mm) 3-3/8 (85.7 mm) 2-23/32 (69.1 mm) 1-7/8 (47.6 mm) TEFLON JACKETED LEAD WIRES PVC JACKETED LEAD WIRES 1/4 NPT 1/4 NPT 21/32 (16.7 mm) 13/16 (20.6 mm) 5/8 HEX (15.9 mm) 1-13/16 (46.0 mm) 2-25/32 (70.6 mm) 5/8 REF. (15.9 mm) 2-1/2 REF. (63.5 mm) 3-15/32 (88.1 mm) 1-15/16 (49.2 mm) 2-21/32 (67.5 mm) 1-1/2 DIA. (38.1 mm) 1-7/8 DIA. (47.6 mm) 21/32 HEX (16.7 mm) .92 (22.3 mm) 3/4 3-7/16 (19.1 mm) (87.3 mm) WIRE. 22 AWG. TEFLON JACKETED 24 TO 26 (610 mm to 660 mm) EXTENDED LENGTH 2-1/8 DIA. (54 mm) 1/2 HEX. REF. (12.7 mm) ACTUATION LEVEL 1-31/32 REF. (50.0 mm) 1-1/8 DIA. REF. (28.5 mm) 1/8 NPT REF. 5/16 DIA. REF. (7.9 mm) #174105. FLOAT #174106. RETAINING CLIP L1=Switch actuation level, nominal (based on a liquid specific gravity of 1.0 and N.O. dry circuit-dimension will vary for N.C. circuit). Common Specifications Electrical Termination: No. 18 AWG, 24 L., Lead Wires (Jacket material is indicated on dimensional drawings, above). Approvals: LS-30 Series switches are U.L. Recognized - File No. E45168. How To Order - Select Part Number based on specifications required. Series Number Materials Stem, Mounting and Other Wetted Float Min. Liquid Sp. Gr. Operating Temperature Pressure, PSI, Max. Switch* SPST, 20 VA SPST, 100 VA SPDT, 20 VA LS-30 Polysulfone with 316 S.S. Retaining Clip .55 -40F to +225F (-40C to +107.2C) 50 LS-74780 LS-1900TFE CPVC Teflon(R) .85 .80 -40F to +180F (-40C to +82.2C) -40F to +300F (-40C to +148.9C) 15 30 LS-1700TFE PTFE .86 +32F to +212F (0C to +100C) 25 * See "Electrical Data" on Page X-5 for more information. ** Switch operation is selectable, N.O. or N.C., by inverting the float on the unit stem. Units are shipped N.O. unless otherwise specified. 100 VA switches are not U.L. Recognized. - Stock Items. A-12 www.gemssensors.com SPST, 20 VA SPDT, 20 VA SPST, 20 VA, N.O. SPST, 20 VA, N.C. Part Number Mounting Size 1/4 NPT 1/8 NPT 46201** -- 46202** -- 46203 -- 74780** -- 133299 -- -- 174100 -- 174200