Rheostats:

47 Products Found
We offer a wide range of rheostats, with power ratings from 25W to 1kW. Track resistances range from 0.5Ohm to 50kOhm.Like potentiometers, rheostats have a uniform resistance track and a sliding contact – however they are connected into an external circuit differently, and they have a different function. They have two terminals rather than three, where one terminal is connected to the resistance track and the other to the sliding contact. As two-terminal devices they are wired in series with a load such as a lamp. Moving the sliding contact alters the series resistance in circuit, controlling the level of current flowing through the lamp and therefore its brightness.

Types of rheostats

Rotary Rheostats are usually used in power applications; as the name suggests, their resistance tracks are rotary.Linear Rheostats have a linear movement for changing the resistance path length and therefore the resistance. This type is usually found in laboratory applications.Preset Rheostats are usually found on printed circuit boards, and used for calibration purposes.

Rheostat applications

Rheostats are used in dimmer circuits, heaters and ovens, and speed control circuits for motors. They are also used for easily varying currents in teaching applications.
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ComparePrice ForQuantity
2145770

RoHS

Each
1+
RM690.150
2+
RM668.780
3+
RM647.410
5+
RM626.040
10+
RM604.670
More Pricing...
Min: 1 / Mult: 1
50ohm
25W
H Series
Panel Mount
Flatted
-
± 10%
Solder Lug
-
-
34.93mm
-
-
2145771

RoHS

Each
1+
RM607.430
2+
RM592.000
3+
RM576.560
5+
RM561.130
10+
RM545.690
More Pricing...
Min: 1 / Mult: 1
25ohm
25W
H Series
Panel Mount
Flatted
-
± 10%
Solder Lug
-
-
34.93mm
-
-
2145774

RoHS

Each
1+
RM721.850
2+
RM695.390
3+
RM668.930
5+
RM642.470
10+
RM616.000
More Pricing...
Min: 1 / Mult: 1
10kohm
25W
H Series
Panel Mount
Flatted
-
± 10%
Solder Lug
-
-
34.93mm
-
-
1129869

RoHS

Each
1+
RM553.590
2+
RM541.370
3+
RM529.140
5+
RM516.920
10+
RM504.690
More Pricing...
Min: 1 / Mult: 1
100ohm
25W
RHS Series
Panel Mount
Flatted
-
± 10%
Solder Lug
-
-
34.93mm
-
-
2145764

RoHS

Each
1+
RM746.750
2+
RM718.790
3+
RM690.830
5+
RM662.870
10+
RM634.900
More Pricing...
Min: 1 / Mult: 1
500ohm
50W
J Series
Panel Mount
Flatted
-
± 10%
Solder Lug
-
-
34.93mm
-
-
157454

RoHS

Each
1+
RM5,285.380
5+
RM3,857.100
10+
RM3,252.410
Min: 1 / Mult: 1
5.6ohm
811W
BFA Series
Panel Mount
Top
High Power
± 10%
Screw
405mm
94mm
153mm
-
-
1129886

RoHS

Each
1+
RM630.460
2+
RM609.090
3+
RM587.720
5+
RM566.350
10+
RM544.980
More Pricing...
Min: 1 / Mult: 1
50ohm
25W
RHS Series
Panel Mount
Flatted
-
± 10%
Solder Lug
-
-
34.93mm
-
-
1129885

RoHS

Each
1+
RM617.840
2+
RM598.230
3+
RM578.610
5+
RM559.000
10+
RM539.380
More Pricing...
Min: 1 / Mult: 1
5kohm
25W
RHS Series
Panel Mount
Flatted
-
± 10%
Solder Lug
-
-
34.93mm
-
-
1141310

RoHS

Each
1+
RM2,755.580
5+
RM2,411.130
10+
RM1,997.790
Min: 1 / Mult: 1
220ohm
12W
RT Series
Panel Mount
Rotary
-
± 10%
Solder Lug
-
-
17mm
-55°C
320°C
2145772

RoHS

Each
1+
RM603.810
2+
RM594.370
3+
RM584.920
5+
RM575.470
10+
RM566.020
More Pricing...
Min: 1 / Mult: 1
1kohm
25W
H Series
Panel Mount
Flatted
-
± 10%
Solder Lug
-
-
34.93mm
-
-
1141319

RoHS

Each
1+
RM1,324.720
5+
RM1,165.290
10+
RM1,005.850
Min: 1 / Mult: 1
47ohm
25W
RT Series
Panel Mount
Rotary
-
± 10%
Solder Lug
-
-
25mm
-55°C
320°C
1050187
Each
1+
RM448.210
2+
RM434.590
3+
RM420.970
5+
RM407.350
10+
RM393.720
More Pricing...
Min: 1 / Mult: 1
100ohm
25W
RHS Series
Panel Mount
Flatted
-
± 10%
Solder Lug
-
-
34.93mm
-
-
1129904

RoHS

Each
1+
RM598.910
2+
RM585.460
3+
RM572.000
5+
RM558.540
10+
RM545.080
More Pricing...
Min: 1 / Mult: 1
225ohm
50W
RJS Series
Panel Mount
Flatted
-
± 10%
Solder Lug
-
-
34.93mm
-
-
1761992

RoHS

Each
1+
RM357.180
2+
RM347.100
5+
RM329.390
10+
RM316.830
25+
RM270.490
Min: 1 / Mult: 1
2ohm
75W
RGS Series
Panel Mount
Flatted
-
± 10%
Solder Lug
-
-
44.45mm
-
-
157478

RoHS

Each
1+
RM4,883.930
5+
RM3,564.140
10+
RM3,005.370
Min: 1 / Mult: 1
33ohm
675W
BFA Series
Panel Mount
Top
High Power
± 10%
Screw
405mm
94mm
153mm
-
-
157491

RoHS

Each
1+
RM4,688.520
5+
RM3,421.530
10+
RM2,885.120
Min: 1 / Mult: 1
560ohm
521W
BFA Series
Panel Mount
Top
High Power
± 10%
Screw
405mm
68mm
132mm
-
-
1141339

RoHS

Each
1+
RM1,369.010
Min: 1 / Mult: 1
100ohm
100W
RT Series
Panel Mount
Rotary
-
± 10%
Solder Lug
-
-
50mm
-55°C
320°C
157480

RoHS

Each
1+
RM4,688.520
5+
RM3,421.530
10+
RM2,885.120
Min: 1 / Mult: 1
120ohm
580W
BFA Series
Panel Mount
Top
High Power
± 10%
Screw
405mm
94mm
153mm
-
-
157466

RoHS

Each
1+
RM4,688.520
5+
RM3,421.530
10+
RM2,885.120
Min: 1 / Mult: 1
22ohm
760W
BFA Series
Panel Mount
Top
High Power
± 10%
Screw
405mm
94mm
153mm
-
-
4046558

RoHS

Each
1+
RM1,039.670
5+
RM957.130
10+
RM874.580
Min: 1 / Mult: 1
100ohm
100W
K Series
Panel Mount
Flatted
High Power
± 10%
Solder Lug
-
-
66.68mm
-
-
4046506

RoHS

Each
1+
RM550.690
2+
RM537.690
3+
RM524.680
5+
RM511.670
10+
RM498.660
More Pricing...
Min: 1 / Mult: 1
10kohm
25W
H Series
Panel Mount
Flatted
High Power
± 10%
Solder Lug
-
-
53.98mm
-
-
4046529

RoHS

Each
1+
RM708.970
5+
RM686.770
10+
RM664.560
Min: 1 / Mult: 1
10kohm
50W
J Series
Panel Mount
Flatted
High Power
± 10%
Solder Lug
-
-
57.16mm
-
-
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