Series 450
®
Industrial 15/16"
(24mm) Diameter
1/2 Watt Composition
Variable Resistors
Features
• Low cost
• Versatile mounting styles:
– bushing
– twist tab
– bend tab
– snap-in PC bracket
– solder lug or PC terminals
• Wide resistance range
• Molded / metal shaft & bushing
• Pull-push, Push-push and rotary power switches
• Shaft and bushing waterseal available
• Rear extended shaft available
• Single, tandem, or concentric constructions
• Special vernier adjust (multiturn) construction
available for fine adjustment
• Long life construction available
Electrical and Mechanical Specifications
Resistance Range
100 ohms through 10 megohms (linear taper)
Long life construction - 10K ohms through 5 megohms
(linear taper)
Resistance Tolerance
Standard: ±20%
Special: ±10%
Power Rating, Watts
1/2 watt 10K ohms, 1/3 watt; above 10K ohms through
100K ohms, 1/4watt above 100K ohms. Full rating @
55°C, derated to no load at 85°C
Voltage Rating
Bushing to Terminals:
High pot test, one minute
Standard construction – 1080VAC
Vernier construction – 1000VAC
Operating maximum – 750VDC
Across End Terminals:
500 VDC, load not to exceed listed wattage ratings.
Special: 1500/1800VAC high pot available.
Resistance Tapers
Standard – Linear,10% Audio and 10% CCW Audio
Special – Consult CTS
Rotational Angle
Standard Construction
Total Rotation: with rotary switch — 320° ± 5°
Total Rotation: without switch or with push-pull
or push-push switches — 300° ± 5°
Vernier Adjust Construction
Shaft Rotational Angle
VA-450 – 3700° – 10
1
/
4
turns
5VA-450 – 2000° – 5
1
/
2
turns
Effective Rotation
With or without switch — 300° (approximate)
Special angle available — consult CTS
Bushing Information
Diameter: EIA Standard
3
/
8
"-32 UNEF-2A thread.
Standard length:
3
/
8
" or
1
/
4
" (9.53mm or 6.35mm)
Special length available upon request
Metric bushing available upon request
RoHS Compliant
All models of 450 series pot. are now RoHS compliant
except 040 and 041 push-push power switches. The
two models of power switches are RoHS compliant
available upon request.
(continued on next page)
1-9
CTS Electronic Components
©
2007 CTS Corporation. All rights reserved. Information subject to change.
www.ctscorp.com
01/25/07
Electrical and Mechanical Specifications
Locating Lugs (Bushing Mounted Style)
Standard Position : Left side with terminals facing inward
Available : No lug, right lug or two lugs with terminals
facing inward
(continued)
Vernier Constructions
This construction is designed for fine tuning
applications. It provides precision adjustments
in 3700° (10
1
/
4
turns) or 2000° (5
1
/
2
turns)
Shaft Information
Metal Shafts : Aluminum standard
Length : Standard — Up to 3" in 1/8" increments.
Special — Consult CTS
Diameter : Standard — .250" (6.35mm)
Special — Consult CTS
Molded Shafts —
Length : Standard — Round, Flatted & knurled shafts
available up to 11/2" (38.1mm) in
1/8" (3.2mm) increments
Special — Some molded shaft designs
available up to 2" (50.8mm). Consult CTS
Diameter : Diameter over knurl —
.240" – .246" (6.10mm – 6.25mm)
Color : Colors are available.
Long Life Construction
This construction provides an extended life of 250,000
cycles (with a limited rotation angle) and is available
with resistance ranging from 10K ohms to 5 megohms,
linear taper only. Consult CTS for other tapers.
Metal Tubing Shafts —
Length : Standard — Up to 3" (76.2mm)
Special — Consult CTS
Outside Diameter :
Rear Extended Shafts — 265" (6.73mm) or .250"(6.35mm)
Metal or molded rear extended shafts available.
Typical Constructions
The following is basic information on the most
common CTS 15/16" (24mm) diameter composition
variable resistor constructions supplied to our
customers. Space limitations prohibit showing the
virtually thousands of additional constructions fabri-
cated to exacting customer specifications. For your
special applications the CTS engineering staff is
at your disposal for designing the best and most
economical construction to meet your requirements.
2-9
CTS Electronic Components
©
2007 CTS Corporation. All rights reserved. Information subject to change.
www.ctscorp.com
01/25/07
POWER SWITCHES
Serie s
FR-GC
GC
Contact
Arrangemen t
SPST
Rotary
SPST
Rotary
Electrical Ratin g
3 amps @ 125 volts,
1 amp @ 250 volts AC
UL Recognized
5 amps @ 20 volts DC
(Automotive)
Outline Drawing
13.1
.515
6.4
.250
6.7
.265
Actuating angle – 20˚
Actuating Torque – 7 to 17 in. oz.
(504 to 1225 gf-cm)
SWITCH TERMINAL
HOLES 2.39/.094x3.18/.125
Ø23.4
.921
DIMENSION:
mm
inch
TGC
SPST
Rotary
6 amps @ 125 volts AC
UL & CSA Recognized
13.1
.515
6.4
.250
6.7
.265
Actuating angle – 20˚
Actuating Torque – 7 to 17 in. oz.
(504 to 1225 gf-cm)
SWITCH TERMINAL
HOLES 2.39/.094x3.18/.125
Ø23.4
.921
DIMENSION:
mm
inch
TV-023
SPST
Rotary
TV-5 rating
UL & CSA Recognized
6.4
.250
13.1
.515
6.7
.265
Actuating angle – 20˚
Actuating Torque – 10 to 20 in. oz.
(720 to 1441 gf-cm)
Ø23.4
.921
DIMENSION:
mm
inch
SWITCH TERMINAL
HOLES 2.39/.094x3.18/.125
3-9
CTS Electronic Components
© 2007 CTS Corporation. All rights reserved. Information subject to change.
01/25/07
www.ctscorp.com
POWER SWITCHES
Series
040
Contact
Arrangement
SPST
Push-on
Push-off
Electrical Rating
6 amps @ 125 volts AC
5.6
.219
17.5
.687
11.9
.469
Outline Drawing
Pretravel 13/64”(5.2,mm)
Activating Force -2 to 5 lb
(0.9 to 2.3 kgf)
Ø23.6
.930
Ø17.5
.687
DIMENSION:
mm
inch
SWITCH TERMINAL
HOLES-1.93/.076x3.15/.124
041
SPDT
Push-on
Push-off
6 amps @ 125 volts AC
5.6
.219
17.5
.687
11.9
.469
Pretravel 13/64”(5.2mm)
Activating Force -2 to 5 lb
(0.9 to 2.3 kgf)
Ø23.6
.930
Ø17.5
.687
DIMENSION:
mm
inch
SWITCH TERMINAL
HOLES-1.93/.076x3.15/.124
050
SPST
Rotary
3 amps @ 125 volts AC
(Shallow construction switch)
UL & CSA Recognized
7
1
/
2
amps @ 20 volts DC
(Automotive)
7.14
.281
7.14
.281
9.5
.375
5.6
.219
4.0
.156
Actuating angle – 25˚
Actuating Torque – 2 to 15 in. oz.
(144 to 1080 gf-cm)
mm
inch
0.4
.016
0.8
.031
0.40
.016
Ø2.4
.094
DIMENSION:
FR-027
DPST
Rotary
3 amps @ 125 volts,
1 amp @ 250 volts AC
UL Recognized
13.1
.515
6.4
.250
6.7
.265
Actuating angle – 20˚
Actuating Torque – 10 to 20 in. oz.
(720 to 1441 gf-cm)
POLE #1
Ø23.39
.921
POLE #2
DIMENSION:
mm
inch
SWITCH TERMINAL
HOLES 2.39/.094 x 3.18/.125
4-9
CTS Electronic Components
©
2007 CTS Corporation. All rights reserved. Information subject to change.
www.ctscorp.com
01/25/07
POWER SWITCHES
Series
TV-020
Contact
Arrangement
DPST
Rotary
Actuating angle – 20˚
Electrical Rating
125 volts AC
Pole #1, TV-1 rating
Pole #2, TV-3 rating
UL & CSA Recognized
POLE #1
6.4
.250
Outline Drawing
13.1
.515
6.7
.265
Actuating Torque – 10 to 18 in. oz.
(720 to 1297 gf-cm)
Ø23.4
.921
DIMENSION:
mm
inch
POLE #2
SWITCH TERMINAL
HOLES 2.39/.094x3.18/.125
FR-028
SPDT
Rotary
Actuating angle – 20˚
3 amps @ 125 volts AC
UL Recognized
POLE #1
6.4
.250
13.1
.515
6.7
.265
Actuating Torque – 10 to 20 in. oz.
(720 to 1441 gf-cm)
Ø23.4
.921
DIMENSION:
mm
inch
POLE #2
SWITCH TERMINAL
HOLES 2.39/.094x3.18/.125
TV-021
SPDT
Rotary
Actuating angle – 20˚
TV-4 rating
UL Recognized
13.1
.515
6.4
.250
6.7
.265
Actuating Torque – 10 to 18 in. oz.
(720 to 1297 gf-cm)
Ø23.4
.921
DIMENSION:
mm
inch
POLE #1
POLE #2
SWITCH TERMINAL
HOLES 2.39/.094x3.18/.125
FR-K
SPST
Pull-on
Push-off
3 amps @ 125 volts AC
UL & CSA Recognized
6.8
.266
16.3
.641
9.5
.375
Pretravel -
5
/
32”
(3.97mm)
Actuating force - 7 to 16 oz. - Single section control
(200 to 1000 gf)
7 to 20 oz. - Tandem control
(200 to 1250 gf)
20.65
.813
10.2
.406
8.33
.328
DIMENSION:
mm
inch
SWITCH TERMINAL
HOLES 2.39/.094 X 3.18/.125
5-9
CTS Electronic Components
©
2007 CTS Corporation. All rights reserved. Information subject to change.
01/25/07
www.ctscorp.com
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