Datasheet

TOCOS AMERICA, INC.
1177 East Tower Road, Schaumburg, IL 60173 Tel: [phone] Fax: [phone] E-mail: sales
@
tocos.com www.tocos.com
63
Specifications
Electrical
Standard Resistance Range . . . . . . . . . . . B = 5Ω to 20kΩ
A,C = 100Ω to 5kΩ
Resistance Tolerance . . . . . . . . . . . . . . . . .

10% standard
(

5%,

2% or

1% special order)
End Resistance . . . . . . . . . . . . . . . . . . R
!
500Ω =1Ω max.
R
0
500Ω = 0.2% max.
Resistance Taper . . . . B = linear; A = CW audio (logarithm);
C = CCW audio (logarithm)
Power Rating . . . B = 2.5 watts; A,C = 1.25 watts, at

40C
Insulation Resistance . . . . . . .100MΩ minimum at 500VDC
Dielectric Strength . . . . . . . . . . . . . . . . . . 500VAC, 1 minute
Theoretical Resolution
Mechanical
Mechanical Travel . . . . . . . . . . . . . . . . . . . . . . . . . . 300

5
Shaft Torque
Single Unit . . . . . 70.1 to 306 gf
•
cm (0.972 to 4.242 oz
•
in)
Tandem Unit . . . . . . 70 to 701 gf
•
cm (0.97 to 9.718 oz
•
in)
Other Units . . . . . . . 70 to 450 gf
•
cm (0.97 to 6.238 oz
•
in)
Stop Strength . . . . . . . . . . . . 10.2 kgf
•
cm (141.4 oz
•
in) max.
Mounting Nut Torque . . . . . .15 kgf
•
cm (207.94 oz
•
in) max.
Solderability . . . . . . . . . . . . . . . . . . . . . . . 235C, 3 seconds
Marking . . . . . . . . . . Taper, resistance, resistance tolerance,
terminal identification, date code
Environmental
Temperature Range . . . . . . . . . . . . . . Y = 10Cto

100C
or X = 30Cto

100C
Temperature Characteristics . . . . . . . . . . .

85C, 5 hours
without load
∆T/R
)

5%
Low Temperature Exposure . . . . . . . 10C (Y ),30C (X )
1 hour without load
∆T/R
)

3%
Load Life . . . . . . . . . . . .

40C, 1,000 hours with rated load
∆T/R
)

3%
Moisture and Load Life . . . . . . . . . . . .

40C, 90-95%RH,
500 hours with 1/10 rated load
∆T/R
)

5%
Vibration . . . . . . . . . . . . . . . . . . .10-55Hz, 1.5mm amplitude,
2 directions, 2 hours each
∆T/R
)

1%
Soldering Heat Resistance . . . . . . . . . 350C, 3.5 seconds;
∆T/R
)

2%
Rotational Life . . . . 15,000 cycles (500 cycles for shaft lock
models only) with 1/2 rated load
∆T/R
)

3%
Standard Rotary Switches
Switch Rating . . . . . . . . . . 110VAC, 1A or 3A, SPDT or SPST
Contact Resistance . . . . . . . . . . . . . . . . . . . . . . 0.05Ω max.
Operating Torque . . . . . . . . 1,500 gf
•
cm (20.79 oz
•
in) max.
Operating Life . . . . . . . . . . . . . . . 10,000 cycles without load
R = Total Resistance Value; ∆T/R = Total Resistance Change
RA30
Series
30mm Diameter, Single-Turn, Wirewound Industrial Panel Controls
TOCOS
®
PANEL CONTROLS
Resistance (Ω )
5
10
20
50
100
200
Resistance (Ω )
500
1,000
2,000
5,000
10,000
20,000
Resolution (%)
1.62
0.81
0.67
0.45
0.44
0.32
Resolution (%)
0.23
0.19
0.15
0.14
0.12
0.10
Features

30mm diameter, single-turn industrial panel controls

Wirewound element

Linear or audio tapers

Single, tandem and triple units, single shaft; dual unit, dual shaft

SPST or SPDT switch with 1A or 3A rating

Shaft lock and center tap models

Metal shaft and bushing

Temperature range of 10C or 30C, up to

100C

Panel mount only

6mm diameter shafts in slot, flat or round end styles

Standard 15mm or 20mm shaft length
RA30YME RA30YD RA30Y