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Series 212
(R)
CTS 212 Rotary Switch
* Hill and valley detent * Balanced double bump detent spring * Excellent feel * 30, 60 or 90 indexing * Spring return styles available * Adjustable stop available * Solder lug and printed circuit terminals available * Molded stator prevents solder from flowing into the circuit * Custom switching patterns available * Index or wafers are available separately
Electrical and Mechanical Specifications
Indexing Double bump spring hill and valley detent with 30 indexing for 2 through 12 positions or 60 indexing from 2 to 6 positions. 90 indexing -consult CTS Voltage and Current Rating UL Rating: 3/4 amp at 125 VAC (shorting type only) Special Rating: 1/4 amp at 28 VDC (shorting or non shorting) 1 amp at 28 VDC Shorting Contact Resistance 0.008 to 0.010 ohm when measured from adjacent terminals Stop Strength 15" lbs (17.3Kg-cm). Torque Up to 48" oz. (3.5Kg-cm). Detent Rotational Life Standard: 25,000 cycles through 12 positions and return at 10 cycles per minute. Materials Shaft: Aluminum or unplated brass at CTS option Bushing: Standard -- Brass Materials (continued) Detent Spring: Spring brass or nickel silver depending on torque requirements Front Plate: Zinc plated or nickel steel at CTS option Rotor Contacts, Stator Contacts and Terminals: Silver plated brass standard Stator Insulator: Glass reinforced thermoset material Bushing Lengths Standard: 3/8"-32 UNEF-2A Thread, 1/4" (6.35mm) or 3/8" (9.53mm) long. Special Lengths: Available as required -- Brass Locating Lugs Standard: Left side .531" (13.5mm) radius Special: Right side .531" (13.5mm) radius or no lug Shaft Trim Standard: Plain round Special: Flat, slot, knurl, or mixed (flat with slot) Frames Machine screw, bolt & nut, or rivet construction Lubrication Special lubrication is used sufficient for the life of the index assembly under normal hand operation.
Technical Data Sheet 1448C Technical Data Sheet 4212
CTS CORPORATION / MANUFACTURER OF RELIABLE ELECTRONIC COMPONENTS
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Physical Dimensions
DIMENSION:
MM INCH
Detent Only
Typical Assembled Switch
MM INCH
Available Terminal Styles
DIMENSION:
T-Style
P-Style
X-Style
U-Style
Ordering Information
212
DETENT STYLE 30 INDEX 212 - HILL & VALLEY
T
01
POLES 01 - 1 POLE 10 - 10 POLES ETC.
02
N
CONTACT TYPE N - NON SHORTING
(BREAK BEFORE MAKE)
2
20
SHAFT FMS 1/32" INCREMENTS 20 - .625" (15.9MM) 24 - .750" (19.1MM) 28 - .875" (22.2MM) 32 - 1.000" (25.4MM)
R
N
SPECIALS N - NONE A - ADJUSTABLE STOP B - 60 INDEX C - 90 INDEX D - NO LOCATING LUG E - LOCATING LUG RIGHT SIDE
S - SHORTING
(MAKE BEFORE BREAK)
MOUNTING STYLE TERMINAL STYLE T - SOLDER LUG X - PC U - PC FORMED TO REAR P - X STYLE WITH .100" (2.54MM) SPACING BUSHING LENGTH: 1/8" INCREMENTS POSITIONS 02 - 2 POSITIONS 12 - 12 POSITIONS, ETC. EXAMPLES: 2 - .250" (6.35MM) 3 - .375" (9.5MM) BUSHING MOUNT SUPPLIED WITH LOCATING LUG LEFT SIDE TERMINALS DOWN
SHAFT TRIM R - ROUND F - FLATTED .250" X .156" (6.35MM X 4.0MM) K - KNURLED EIA S148 S - SD SLOT .047" WIDE X .063" DEEP (1.2MM X 1.6MM) M - FLATTED .375" X .218" (9.53MM X5.54MM) WITH SLOT
Order From:
CTS CORPORATION, ELECTROCOMPONENTS / 1601 Mishawaka Street / Elkhart, Indiana 46514 North America Toll Free (888) 287-4690 / (219) 296-6700 / FAX: (219) 293-1240 http://www.ctscorp.com CTS COMPONENTS TAIWAN, LTD. / 7, Central 6th Road (Chung Liu Road) / P.O. Box 26-20 Kaohsiung Export Processing Zone / Kaohsiung, Taiwan, Rep. of China (07) 8216145 / FAX: (07) 8417642.8110040 2.5M-6-99I
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