Rheostats (Potentiometers) Wirewound Model C Max. Ohmic Voltage Behind panel Diameter Dimension Shaft Rotation Model Type Watts range Core (RMS)* (in./mm Ref.) (in./mm Ref.) (in./mm Ref.) torque (5) C RCS/RCL 7.5 10.0-5K enclosed 305 0.875/22.23 0.515/ 13.08 0.25-3 oz. in. 300 See Catalog 203 for complete details. 0.531 13.49 mm Locking shaft Mounting: Panels 0.25 to 0.125 (3.18mm) 1 6.4 mm thick with /4-32 B bushing and hex 0.625 0.625 1 nut ( /16 thick). 15.88 mm 15.88 mm D 0.125 3.18 mm Standard shaft 0.25 0.25 0.109 6.4 mm 6.4 mm 2.78 mm Model e Max. Ohmic Voltage Behind panel Diameter Dimension Shaft Rotation Model Type Watts range Core (RMS)* (in./mm Ref.) (in./mm Ref.) (in./mm Ref.) torque (5) E RES/REL 12.5 1.0-15K open 305 0.688/17.46 0.875/ 22.23 0.594/15.08 1-6 oz. in. 300 E REE 12.5 1.0-15K enclosed 305 1.219/30.96 1.047/ 26.59 1-6 oz. in. 300 See Catalog 203 for complete details. unenclosed 0.625 0.531 shaft 15.88 mm 13.49 mm locking D B nut 0.125 3.18 mm 0.25 6.35 mm C REL standard locking shaft shaft 0.25 0.078 0.406 6.35 mm 1.98 mm Mounting: Panels to 10.32 mm 0.125 (3.18mm) thick 1 enclosed with /4-32 bushing and 1 hex nut ( /16 thick). D 0.094 2.38 mm B Dimensions for reference only consult factory for details. Since all rheostats/potentiometers are electro-mechanical devices, they are subject to mechanical wear and, therefore, have a finite life. Models H, J, K, L and N are listed under UL File No. E-10946 and CSA File No. 21309 unless noted otherwise. All rheostats are 10% tolerance. 1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info ohmite.com 187Rheostats (Potentiometers) Wirewound Models H, J, G, K, l Max. Ohmic Voltage Behind panel Diameter Dimension Shaft Rotation Model Type Watts range Core (RMS)* (in./mm Ref.) (in./mm Ref.) (in./mm Ref.) torque (5) H RHS/RHL 25 1.0-25K open 500 1.375/34.93 1.560/ 39.62 0.940/23.88 0.25-0.5 lb. in. 300 J RJS 50 0.5-50K open 750 1.375/34.93 2.31 / 58.67 1.56 /39.62 0.25-2 lb. in. 300 G RGS 75 0.5-50K open 900 1.750/44.45 2.75 / 69.25 1.78 /45.21 0.5-2 lb. in. 300 K RKS 100 0.5-50K open 1000 1.750/44.45 3.125/ 79.38 1.91 /48.51 0.5-2 lb. in. 300 L RLS 150 0.5-50K open 1200 2.000 / 50.8 4.00 /101.60 2.28 /57.91 0.5-3 lb. in. 300 Models H, J, G, and K also available in enclosed versions. See Catalog 203 for complete details. 0.375 0.75 1.75 9.53 mm 19.05 mm 44.5 mm 0.031 bushing 0.79 mm projection 0.25 0.625 6.35 mm Mounting: Panels to 15.88 mm D 0.25 (6.35mm) thick 3 with /8-32 bushing and 0.5 hex nut 12.7 mm 3 0.031 ( /32 thick) (or with 10-32 C drill 0.188 (4.76 mm) 0.79 mm shaft x 0.75 flat-head screws hole in panel. locking for model L only). washer not included 0.344 nut in model L 8.73 mm 0.063 holes for: 1.59 mm locking shaft 0.875 no. 2 screws (model H) (only model H 22.23 mm B mounting no. 8 screws (J, G, K, L) stocked) bracket on standard shaft model L only (models H, J, G, K, L) Models P, N, R, U Max. Ohmic Voltage Behind panel Diameter Dimension Shaft Rotation Model Type Watts range Core (RMS)* (in./mm Ref.) (in./mm Ref.) (in./mm Ref.) torque (5) P RPS 225 1.0-30K open 1300 2.125/53.98 5.00 /127.00 2.97 /75.44 2.5-4 lb. in. 310 N RNS 300 1.0-50K open 1225 2.375/60.33 6.00 /152.40 3.44 /87.38 2.5-5 lb. in. 320 R RRS 500 1.0-20K open 1450 2.125/53.98 8.00 /203.20 4.31/109.47 4.5-7 lb. in. 325 U RUS 1000 1.0-20K open 1600 3.000 / 76.2 12.00 /304.80 6.38/162.05 3.5-7 lb. in. 335 See Catalog 203 for complete details. 2 51 mm M M B Dimension P 0.875 22.23 mm 0.375 9.53 mm N 1.188 30.16 mm R 1.5 38.1 mm D U 3 76.2 mm Mounting: Panels 0.031 C to 1.25 (31.75mm) 0.79 mm 1 thick with /4-20 flat-head screws. 1 holes for /4 - 20 thread for 1.563 no. 8 screws mounting screws 39.7 mm (continued) 188 1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info ohmite.com
