LF Series Reset Switch Features/Benefits • Low operating force • Long life • Compact design • High electrical ratings Typical Applications • Pumps • Furnace controls Specifications Materials CONTACT RATING: See chart on next page ELECTRICAL LIFE: 100,000 cycles at 5 Amps @ 250 INSULATION RESISTANCE: 1,000 Meg Ohms Min. DIELECTRIC STRENGTH: 1,000 V RMS min. @ sea OPERATING TEMPERATURE: -40 C to 95 C OPERATING FORCE: see chart on next page MOUNTING: 2-56 screws, torque 2.3 in/ lbs max (not included) SWITCH HOUSING: 6/6 nylon or PBT 94V0 ACTUATOR BUTTON: Thermoset 05A option only SPRING: Stainless steel 05B option MOVABLE CONTACT: Fine silver STATIONARY CONTACT: Fine silver on copper alloy LEVER: 05A option stainless steel 05B option PBT 94V0 J To order, simply select desired option from each category and place in the appropriate box. Available options are shown and described on page J-64 thru J-65. For additional options not shown in catalog, consult Customer Service Center. L F 0 5 0 Q Y Series LF Electrical Rating 05A (see chart next page) 05B (see chart next page) Operating Force 080 0.53 oz / 15 grams max. 010 0.35 oz. / 10 grams max. Actuator L27 1.078 (27,39) Stainless lever (option 05A only) P27 1.078 (27,39) Plastic lever (option 05B only) P40 1.591 (40,41) Plastic lever (option 05B only) Terminations Q .110 quick connect Circuitry Y N.O. Dimensions are shown: Inches (mm) Specifications and dimensions subject to change J–63 www.ck-components.com Snap-acting Build-A-Switch LF Series Reset Switch LF .050 (1,27) PRECISION SNAP-ACTING RESET SWITCH .240 (6,10) .181 (4,60) .281 (7,14) .108 (2,74) 1.078 (27,39) .898 (22,8) .075 (1,91) .370-.510 (9,4-12,95) OPER. POS. .265 (6,73) .074 (1,88) .098 DIA (2,49ø) .276 TYP. (7,01) .284 (7,21) .020 (0,51) .110 (2,79) .255 (6,48) .762 (19,35) .835 (21,21) ELECTRICAL RATING Electrical Rating Snap-acting J All models Option Code RoHS Compliant * RoHS Compatible * Moveable Contact Stationary Contact Electrical Rating 05A Yes Yes Fine Silver Fine Silver on copper alloy 5 Amps @ 250VAC (UL/CSA) 2 Amps @ 480VAC (UL/CSA) 1/2 @ 480VAC (UL/CSA) 5 (1) @ 250VAC-10E3 T90 (VDE) 05B Yes Yes Fine Silver on copper alloy 5 Amps @ 125/250 VAC (UL/CSA) 5 (1) @ 250VAC-10E3 T90 (VDE) 1/8 HP @ 125 VAC 1/4 HP @ 250 VAC Fine Silver with all options. OPERATING FORCE & ACTUATOR Switch Characteristic Maximum Operate Force oz/grams Operating Position Differential Travel L27 0.53 / 15 .398 ± .05 .130 ± .030 P27 0.35 / 10 .398 ± .05 .130 ± .030 P40 0.35 / 10 .500 ± .05 .140 ± .030 Option Code L27 .240 (6,10) 1.078(27, 39) STAINLESS STEEL LEVER OPTION 05A ONLY .050 (1,27) .181 (4,60) .281 (7,14) 1.078 (27,39) .108 (2,74) .898 (22,8) .075 (1,91) .370-.510 (9,4-12,95) OPER. POS. .265 (6,73) .284 (7,21) .020 (0,51) .074 (1,88) .098 DIA (2,49ø) .276 TYP. (7,01) .762 (19,35) .835 (21,21) .110 (2,79) .255 (6,48) Dimensions are shown: Inch (mm) Specifications and dimensions subject to change J–64 www.ck-components.com LF Series Reset Switch ACTUATOR P27 1.624 [ 41,24 ] 1.078(27, 39) PLASTIC LEVER OPTION 05B ONLY .832 [ 21,13 ] .250 [ 6,35] .890 [ 22,59 ] .040 [ 1,02] .202 [ 5,13] .293 [ 7,44] OPERATING POSITION .434 [ 11,02] LOW POSITION .193 [ 4,9 ] 2X.020 [ 0,51] .288 [ 7,32 ] .074 [ 1,88] 2X .083 [ 2,11 ] .110 [ 2,79 ] .276 [ 7,01 ] .250 [ 6,35] .306 [ 7,77] P40 .028 [ 0,71] .186 [ 4,72] 1.591 (40,41) PLASTIC LEVER OPTION 05B ONLY .832 [ 21,13 ] .250 [ 6,35] .281 [ 7,14] J .150 [ 3,81 ] .156 [ 3,96 ] Snap-acting 1.439 [ 36,55 ] .040 [ 1,02] .202 [ 5,13 ] OPERATING POSITION LOW POSITION .193 [ 4,9 ] 2X.020 [ 0,51] .276 [ 7,01 ] .293 [ 7,44 ] .434 [ 11,02] .074 [ 1,88] .288 [ 7,32] 2X .083 [ 2,11 ] .110 [ 2,79] .250 [ 6,35 ] .306 [ 7,77] TERMINATIONS Q .110 QUICK CONNECT .284 (7,21) .020 (0,51) .098 DIA (2,49ø) .276 TYP. (7,01) .762 (19,35) .835 (21,21) .110 (2,79) .193 [ 4,9 ] 2X.020 [ 0,51] .255 (6,48) OPTION 05A .276 [ 7,01 ] .293 [ 7,44 ] .434 [ 11,02] .074 [ 1,88] .288 [ 7,32] 2X .083 [ 2,11 ] .110 [ 2,79] .250 [ 6,35 ] .306 [ 7,77] OPTION 05B CIRCUITRY Y N.O. Dimensions are shown: Inches (mm) Specifications and dimensions subject to change J–65 www.ck-components.com