KM Series Subminiature Detect Switches
Features/Benefits • Reliable contact design • Available with pretravel
and overtravel
Typical Applications • Alarm systems • Computers • Detector switch application
• RoHS compliant
Models Available
Specifications
CONTACT RATING: Q contact material: 0.25 AMPS @ 125 V AC or DC (UL). See page F-39 for additional ratings. ELECTRICAL LIFE: 10,000 actuations min. at full load. CONTACT RESISTANCE: Below 30 mΩ typ. initial @ 2-4 V DC, 100 mA, for both silver and gold plated contacts. INSULATION RESISTANCE: 109Ω min. DIELECTRIC STRENGTH: 1,000 Vrms min. @ sea level. OPERATING TEMPERATURE: –30ºC to 85ºC. CAP INSTALLATION FORCE: 10 lbs. max. permissible.
NOTE: Any models supplied with Q or B contact material are RoHS compliant. NOTE: Specifications and materials listed above are for switches with standard options. For information on specific and custom switches, consult Customer Service Center.
Materials
HOUSING & BUSHING: 6/6 nylon (UL94V-2), black. ACTUATOR: 6/6 nylon (UL 94V-2), natural. MOVABLE CONTACT: B contact material: Bronze or copper, with gold plate over nickel plate. See page F-39 for additional contact materials. STATIONARY CONTACTS & TERMINALS: B contact material: Copper, with gold plate over nickel plate. See page F-39 for additional contact materials. RETURN SPRING: Music wire, phosphor coated. MOUNTING NUT: Brass, nickel plated. TERMINAL SEAL: Epoxy.
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 pages E-41 and E-43. For additional options not shown in catalog, consult Customer Service Center.
Switch Function KM12 On-Mom., SPDT
Actuator 02 .398" high, .122" dia. KM12
Bushing/Mounting Style A Right angle Terminations 08 Right angle, PC thru-hole
E Detect
Contact Material B Gold Q Silver Seal E Epoxy
Dimensions are shown: mm Specifications and dimensions subject to change
E–41
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KM Series Subminiature Detect Switches
SWITCH FUNCTION
SWITCH FUNCTION POS. 1 POS. 2 CONNECTED TERMINALS POS. 1 POS. 2
NO. POLES
MODEL NO.
SCHEMATIC
SP
KM12
ON
MOM.
2-1
4-3 SPDT
SPDT
Part number shown: KM1202A08BE
ACTUATOR
02
.398" HIGH, .122" DIA.
NOTE: Caps available for plunger options, see page E-43.
BUSHING/ MOUNTING STYLE
A
RIGHT ANGLE
PC MOUNTING
E Detect
TERMINATIONS
08
RIGHT ANGLE, PC THRU-HOLE
Third Angle Projection
Dimensions are shown: mm Specifications and dimensions subject to change
E–42
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KM Series Subminiature Detect Switches
CONTACT MATERIAL
OPTION CODE RoHS COMPLIANT * YES RoHS COMPATIBLE * YES CONTACT AND TERMINAL MATERIAL RATINGS
B Q
GOLD 1 SILVER 2
LOW LEVEL/DRY CIRCUIT
0.4 VA MAX. @ 20 V AC OR DC MAX. 0.25 AMPS @ 125 V AC OR DC (KM11, KM12) (UL) 1 AMP @ 125 V AC OR 28 V DC (KM33).
YES
YES
POWER
* Note: See Technical Data section of this catalog for RoHS compliant and compatible definitions and specifications.
1 STATIONARY
CONTACTS & TERMINALS: Copper, with gold plate over nickel plate. MOVABLE CONTACT: Phosphor bronze or beryllium copper, with gold plate over nickel plate. 2 STATIONARY CONTACTS & TERMINALS: Copper, silver plated (standard with all termination options). MOVABLE CONTACT: Phosphor bronze or beryllium copper, silver plated. 3 STATIONARY CONTACTS & TERMINALS: Copper, with gold plate over nickel plate over silver plate. MOVABLE CONTACT: Phosphor bronze or beryllium copper, with gold plate over nickel plate over silver plate.
NOTE: Any models supplied with Q or B contact material are RoHS compliant. KM12 models when ordered with ‘Q’ contact material.
SEAL
E
EPOXY SEAL
AVAILABLE HARDWARE
.310 DIA. (7,87 ) .138 (3,51) .250 (6,35) .120 (3,05) .200 DIA. (5,08 ) .375 DIA. (9,53 ) .250 (6,35) .155 (3,94) .120 (3,05)
PART NO.
PART NO. WHITE BLACK RED
PART NO. WHITE BLACK RED
801801000 801802000 801803000
Material: Nylon Finish: Gloss
708901000 708902000 708903000
Material: Nylon Finish: Gloss
752701000 752702000 752703000
Material: Nylon Finish: Gloss
WHITE BLACK RED
.450 SQ. (11,43) .195 (4,95) .240 (6,10)
E Detect
NOTE: Other cap colors available, consult Customer Service Center.
PART NO.
PART NO. WHITE BLACK RED
484601000 484602000 484603000
Material: Nylon Finish: Gloss
798201000 798202263 798203000
Material: Nylon Finish: Matte
WHITE BLACK RED
Third Angle Projection
Dimensions are shown: mm Specifications and dimensions subject to change
E–43
www.ck-components.com
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