LF Series Reset Switch
Features/Benefits • Low operating force • Long life • Compact design • High electrical ratings Typical Applications • Pumps • Furnace controls
Specifications
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)
Materials
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 Snap-acting
Build-A-Switch
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 Series LF Electrical Rating 05A (see chart next page) 05B (see chart next page)
F
0
5
0
Q
Y
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
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LF Series Reset Switch
LF
PRECISION SNAP-ACTING RESET SWITCH
.240 (6,10) .050 (1,27) .181 (4,60) .281 (7,14) 1.078 (27,39) .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) .108 (2,74)
.110 (2,79)
.255 (6,48)
ELECTRICAL RATING
J Snap-acting
Electrical Rating Option Code RoHS Compliant * RoHS Compatible * Moveable Contact Stationary Contact Electrical Rating 5 Amps @ 250VAC (UL/CSA) 2 Amps @ 480VAC (UL/CSA) 1/2 @ 480VAC (UL/CSA) 5 (1) @ 250VAC-10E3 T90 (VDE) 5 Amps @ 125/250 VAC (UL/CSA) 5 (1) @ 250VAC-10E3 T90 (VDE) 1/8 HP @ 125 VAC 1/4 HP @ 250 VAC
05A
Yes
Yes
Fine Silver
Fine Silver on copper alloy
05B
Yes
Yes
Fine Silver
Fine Silver on copper alloy
All models
with all options.
OPERATING FORCE & ACTUATOR
Switch Characteristic Option Code L27 P27 P40 Maximum Operate Force oz/grams 0.53 / 15 0.35 / 10 0.35 / 10 Operating Position .398 ± .05 .398 ± .05 .500 ± .05 Differential Travel .130 ± .030 .130 ± .030 .140 ± .030
L27
1.078(27, 39) STAINLESS STEEL LEVER OPTION 05A ONLY
.240 (6,10)
.050 (1,27) .181 (4,60) .281 (7,14)
1.078 (27,39) .898 (22,8) .075 (1,91)
.108 (2,74)
.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
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LF Series Reset Switch
ACTUATOR
P27
1.078(27, 39) PLASTIC LEVER OPTION 05B ONLY
1.624 [ 41,24 ] .832 [ 21,13 ] .250 [ 6,35]
.040 [ 1,02]
.890 [ 22,59 ]
.202 [ 5,13] .293 [ 7,44]
OPERATING POSITION
LOW POSITION
.434 [ 11,02]
2X .083 [ 2,11 ] .193 [ 4,9 ] 2X.020 [ 0,51] .306 [ 7,77] .028 [ 0,71] .276 [ 7,01 ]
.074 [ 1,88]
.288 [ 7,32 ] .110 [ 2,79 ] .250 [ 6,35]
P40
1.591 (40,41) PLASTIC LEVER OPTION 05B ONLY
.281 [ 7,14]
.186 [ 4,72]
.832 [ 21,13 ] .250 [ 6,35]
.156 [ 3,96 ]
.150 [ 3,81 ]
J Snap-acting
.202 [ 5,13 ]
.040 [ 1,02]
1.439 [ 36,55 ]
OPERATING POSITION LOW POSITION .293 [ 7,44 ]
.434 [ 11,02]
.074 [ 1,88] .193 [ 4,9 ] 2X.020 [ 0,51] .276 [ 7,01 ] .306 [ 7,77] 2X .083 [ 2,11 ]
.288 [ 7,32] .110 [ 2,79] .250 [ 6,35 ]
TERMINATIONS
Q
.110 QUICK CONNECT
.293 [ 7,44 ]
.434 [ 11,02]
.074 [ 1,88]
.288 [ 7,32] .110 [ 2,79] .250 [ 6,35 ]
.284 (7,21) .020 (0,51)
.098 DIA (2,49ø) .276 TYP. (7,01) .762 (19,35) .835 (21,21)
.110 (2,79)
.255 (6,48)
.193 [ 4,9 ] 2X.020 [ 0,51]
.276 [ 7,01 ] .306 [ 7,77]
2X .083 [ 2,11 ]
OPTION 05A
OPTION 05B
CIRCUITRY
Y
N.O.
Dimensions are shown: Inches (mm) Specifications and dimensions subject to change
J–65
www.ck-components.com
