
L–8
Dimensions are shown: Inch (mm)
Specifications and dimensions subject to change
www.ittcannon.com
L
R
C&K RTA Series
1–4 Poles Coded Rotary Switches
Features/Benefits
 PCB or hand soldering versions
 Bushing mounting
 Multiple poles
 Decimal and hexadecimal codes
 Screwdriver slot or extended actuator
 RoHS Compliant Lead Free 
Typical Applications
 Appliances
 Electronic alarm systems
 Medical
 Building automation
 HVAC air conditioning
Electrical Data
SWITCHING MODE:
MAX. SWITCHING POWER
MAX. SWITCHING CURRENT: 
MAX. CARRYING CURRENT: 
NOMINAL VOLTAGE AT 50 Hz
CONTACT RESISTANCE: 
DIELECTRIC STRENGTH AT 50 Hz
BETWEEN CONTACTS AND
GROUND TERMINALS:
INSULATION RESISTANCE BETWEEN
CONTACTS OR CONTACTS 
AND FRAME (500 V =):
NO. OF OPERATIONS:
BOUNCE:
Silver
Gold
BBM
5 VA
150 mA
5 A
60 V
< 150 m
BBM
0.5 VA
20 mA
1 A
25 V
< 150 m
500 V r
500 V r
10
9
10,000
< 5 ms
10
9
10,000
< 5 ms
Environmental Data
OPERATING TEMPERATURE: –20oC to + 70oC
STORAGE TEMPERATURE:
–20oC to + 70oC
–40oC to + 85oC
–40oC to + 85oC
NOTE:
 Specifications and materials listed above are for switches with standard options.
For information on specific and custom switches, consult Customer Service Center.
Mechanical Data
MAX. NO. OF BANKS: 1.
OPERATING TORQUE: 5 Ncm±20%.
END STOP TORQUE: < 60 Ncm.
STOP: With/without or adjustable
MOUNTING: By fixed index 9.5 mm (0.374) of center, for bush-
ing mount only
Materials
HOUSING: PETP Thermoplastic
STATIONARY CONTACTS & TERMINALS: Nickel alloy, gold or
silver plated.
ROTOR: Printed circuit, gold or silver plated.
CODING PLATE: PA thermoplastic
ACTUATOR: Polysulfon thermoplastic
BUSHING: Washer: PA. Nut: Brass.
HARDWARE: Stop pin: Aluminum. Ball & Spring: Stainless steel.
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 L-9 thru L-11. For additional options not shown in catalog, consult Customer Service Center.
Designation 
RTAP
 With PC Thru-Hole
RTAC
 With solder lugs
Indexing
22.5
 22.5 index (coded only)
30
30° index (12 positions max.) 
36
36° index (10 positions max.)
Switch Function
112S
110S
103B03
 SP, 30° /36° Index, 3 pos.
106B06
 SP, 30° /36° Index, 6 pos.
109B09
 SP, 30° /36° Index, 9 pos.
110B10
 SP, 30° /36° Index, 10 pos.
111B11
 SP, 30° Index, 11 pos.
112B12
 SP, 30° Index, 12 pos.
205S
DP, 36° Index, 5 pos. no stop
206S
DP, 30° Index, 6 pos. no stop
202B02
 DP, 30° /36° Index, 2 pos.
204B04
 DP, 30° /36° Index, 4 pos.
205B05
 DP, 30° /36° Index, 5 pos.
206B06
 DP, 30° Index, 6 pos.
303B03
 3P, 30° /36° Index, 3 pos.
402B02
 4P, 30° /36° Index, 2 pos.
BCS
 Direct + complement, 30° /36° Index, no stop
BS
Direct, 22.5° Index, no stop
BCB
 Direct + complement, with stop (indicate position)
BB
Direct, 22.5° Index, with stop (indicate position)
SP, 30° Index, 12 pos. no stop
SP, 36° Index, 10 pos. no stop
Contact Material
S
 Silver plated
G
 Gold plated
Actuator (max.)
25
.984 (25,0)
50
1.97 (50,0)
F
Screwdriver slot
M25
 Flat shaft, .984 (25,0)
Mounting Style
SD
 Without bushing
AD
 With bushing
NOTE: 
For the latest information regarding RoHS compliance, please go
to: www.ittcannon.com/rohs.