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187
Rheostats
(Potentiometers) Wirewound
D
0.25"
6.35 mm
enclosed
unenclosed
standard
shaft
0.125"
3.18 mm
0.625"
15.88 mm
B
0.25"
6.35 mm
0.078"
1.98 mm
C
0.531"
13.49 mm
0.406"
10.32 mm
shaft
locking
nut
0.094"
2.38 mm
B
D
REL
locking
shaft
Max.
Ohmic Voltage Behind panel “B" Diameter “D" Dimension “C" Shaft Rotation
Model Type Watts range Core (RMS)* (in./mm Ref.) (in./mm Ref.) (in./mm Ref.) torque (±5°)
C RCS/RCL 7.5 10.0-5K enclosed 305 0.875/22.23 0.515/ 13.08 — 0.25-3 oz. in. 300°
• See Catalog #203 for complete details.
Max.
Ohmic Voltage Behind panel “B" Diameter “D" Dimension “C" Shaft Rotation
Model Type Watts range Core (RMS)* (in./mm Ref.) (in./mm Ref.) (in./mm Ref.) torque (±5°)
E RES/REL 12.5 1.0-15K open 305 0.688/17.46 0.875/ 22.23 0.594/15.08 1-6 oz. in. 300°
E REE 12.5 1.0-15K enclosed 305 1.219/30.96 1.047/ 26.59 — 1-6 oz. in. 300°
• See Catalog #203 for complete details.
D
0.25"
6.4 mm
0.125"
3.18 mm
0.625"
15.88 mm
0.625"
15.88 mm
B
0.25"
6.4 mm
0.109"
2.78 mm
0.531"
13.49 mm
0.25"
6.4 mm
Standard
shaft
Locking
shaft
Mounting: Panels to
0.125" (3.18mm) thick
with
1
/4-32 bushing and
hex nut (
1
/16" thick).
Mounting: Panels
to 0.125" (3.18mm)
thick with
1
/4-32
bushing and hex
nut (
1
/16" thick).
MODEL C
MODEL E
Dimensions for reference only; consult factory for details.
Since all rheostats/potentiometers are electro-mechanical devices, they are subject to mechanical wear and, therefore, have a finite life.
Models H, J, K, L and N are listed under UL File No. E-10946 and CSA File No. 21309 unless noted otherwise.
All rheostats are 10% tolerance.
