Rheostats:

408 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
4046701

RoHS

Each
1+
€1,619.000
Min: 1 / Mult: 1
2.5kohm
1kW
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
0
-
-
4046606

RoHS

Each
5+
€236.220
Min: 5 / Mult: 5
0
150W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
73.03mm
-
-
4046340

RoHS

Each
5+
€322.450
Min: 5 / Mult: 5
500ohm
7.5W
0
Panel Mount
Screwdriver Slot
High Power
± 10%
Solder Lug
0
-
-
4046540

RoHS

Each
5+
€110.100
Min: 5 / Mult: 5
25kohm
50W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
57.16mm
-
-
4046374

RoHS

Each
5+
€203.730
Min: 5 / Mult: 5
0
12.5W
0
Panel Mount
Round Shaft
High Power
± 10%
Solder Lug
0
-
-
4046506

RoHS

Each
1+
€127.970
Min: 1 / Mult: 1
10ohm
25W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
53.98mm
-
-
4046565

RoHS

Each
5+
€164.820
Min: 5 / Mult: 5
0
100W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
66.68mm
-
-
4046331

RoHS

Each
5+
€382.870
Min: 5 / Mult: 5
1kohm
7.5W
0
Panel Mount
Screwdriver Slot
High Power
± 10%
Solder Lug
0
-
-
4046661

RoHS

Each
5+
€421.700
Min: 5 / Mult: 5
0
225W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
0
-
-
4046367

RoHS

Each
5+
€197.970
Min: 5 / Mult: 5
0
12.5W
0
Panel Mount
Round Shaft
High Power
± 10%
Solder Lug
0
-
-
4046335

RoHS

Each
5+
€322.450
Min: 5 / Mult: 5
0
7.5W
0
Panel Mount
Screwdriver Slot
High Power
± 10%
Solder Lug
0
-
-
4046680

RoHS

Each
1+
€676.080
Min: 1 / Mult: 1
0
500W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
0
-
-
4046529

RoHS

Each
1+
€109.450
5+
€100.860
10+
€92.270
Min: 1 / Mult: 1
10ohm
50W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
57.16mm
-
-
4046438

RoHS

Each
5+
€69.650
Min: 5 / Mult: 5
500ohm
12.5W
0
Panel Mount
Round Shaft
High Power
± 10%
Solder Lug
33.34mm
-
-
4046414

RoHS

Each
1+
€85.680
2+
€74.970
3+
€73.610
5+
€72.240
10+
€70.880
More Pricing...
Min: 1 / Mult: 1
100ohm
12.5W
E Series
Panel Mount
Round Shaft
High Power
± 10%
Solder Lug
33.34mm
-
-
4046631

RoHS

Each
5+
€402.700
Min: 5 / Mult: 5
0
300W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
0
-
-
4046315

RoHS

Each
5+
€399.090
Min: 5 / Mult: 5
2.5kohm
7.5W
0
Panel Mount
Screwdriver Slot
High Power
± 10%
Solder Lug
0
-
-
4046354

RoHS

Each
5+
€189.790
Min: 5 / Mult: 5
15ohm
12.5W
0
Panel Mount
Round Shaft
High Power
± 10%
Solder Lug
0
-
-
4046349

RoHS

Each
5+
€177.000
Min: 5 / Mult: 5
0
12.5W
0
Panel Mount
Round Shaft
High Power
± 10%
Solder Lug
0
-
-
4046429

RoHS

Each
5+
€65.940
Min: 5 / Mult: 5
250ohm
12.5W
0
Panel Mount
Round Shaft
High Power
± 10%
Solder Lug
33.34mm
-
-
4046628

RoHS

Each
5+
€427.060
Min: 5 / Mult: 5
0
300W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
0
-
-
4046654

RoHS

Each
5+
€427.140
Min: 5 / Mult: 5
0
225W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
0
-
-
4046570

RoHS

Each
5+
€187.280
Min: 5 / Mult: 5
0
100W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
66.68mm
-
-
4046648

RoHS

Each
5+
€410.380
Min: 5 / Mult: 5
2kohm
225W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
0
-
-
4046400

RoHS

Each
5+
€96.330
Min: 5 / Mult: 5
0
12.5W
0
Panel Mount
Screwdriver Slot
High Power
± 10%
Solder Lug
0
-
-
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