®
Commercial
3
/
4
"
(19.05mm) diameter,
2 watt variable
resistor
• Fully enclosed construction
• Four mounting styles
• Long rotational life
• Optional grounded or insulated rotor
construction
• Incorporated fixed resistor available
• Available with nylon shaft
• Interchangeable mounting with
CTS series 110 preset potentiometers
Series 115
Technical Data Sheet 1448C
CTS CORPORATION / MANUFACTURER OF RELIABLE ELECTRONIC COMPONENTS
Electrical and Mechanical Specifications
Resistance Range
1 ohm through 20K ohms (linear taper)
Resistance Tolerance
Available: ±5%, ±10%, ±20%
Power Rating, Watts
Standard: 2 watts @ 55°C, derated to no load @ 105°C
linear taper, control mounted on metal panel
4" x 4" x .050" (101.6mm x 101.6mm x 1.27mm)
Voltage Rating
Terminals to case (insulated types only)
High pot test, one minute — 900 VAC
Operating maximum — 500 VDC
Across end terminals
Determined by resistance value and wattage rating
Resistance Taper
Linear (±3% independent linearity, standard)
Taps
None
Incorporated Fixed Resistor
A fixed resistor can be incorporated in the Series 115
at the end of CW or CCW rotation to a minimum of 15%
of the total resistance value. The rotation is shortened
by an amount proportional to the ratio of the fixed resistor
to the total resistance value.
Angle of Rotation
270° ± 5°
Adjustment of Resistance
Standard: Cross slot provided in rotor for screwdriver
adjustment.
Special: Molded nylon, screwdriver-slotted shafts which
are integral with rotor are available in many lengths
in increments of
1
/8" (3.2mm) up to a maximum
of 2" (50.8mm).
Available Mounting Types
Printed circuit mounted: Type 115
Twist tab mounted: Type P115
Ear mounted: Type 116
Rivet ear mounted: Type 117
Terminal Information
Grounded Construction — The grounded construction is
supplied without a center terminal and the contactor is
connected to the case. This construction can be furnished
with one end terminal at either end of the resistance
element or with terminals at both ends of the element.
Insulated Construction — The contactor is insulated from the
base and connected to the center terminal on the insulated
construction. This construction can be supplied with the
center terminal and one end terminal at either end of the
resistance element or with the center terminal and terminals
at both ends of the resistance element.
Rotational Torque
Turning Torque:
1
/2 to 10 inch-ounces (36 – 720 g-cm)
Stop Strength: 4 inch-pounds (4.6 Kg-cm)
Technical Data Sheet 1115
