Rheostats

A rheostat is a variable resistor which is used to control current within an electrical circuit. They are able to vary the resistance in a circuit without interruption. Rheostats are very similar in construction to potentiometers.How Rheostats OperateRheostats use two connections, even when 3 terminals are present, the first connection is made to one end of the resistive element and the other connection to the wiper (sliding contact). Resistive wire is wound around an insulating ceramic core, as the wiper slides over the windings the resistance, and therefore current, produced is altered.Rheostat TypesSeveral types of rheostats exist, with varying functions and applications. Rotary type – Mostly used in power control applications. Rotary rheostats feature a turnable shaft that adjusts the resistance. They are used to control multiple applications in parallel or to increase the power rating or adjusting range. Slide type – Slide rheostats are often used for education and in laboratory environments. Linear or slide types are constructed of resistive wire wound on an insulating cylinder, a sliding contact moves along the winding to increase or decrease the resistance.

...
Read more Read less

Filters

Viewing 81 - 100 of 251 products
Results per page
Description Price Maximum Resistance Tolerance Power Rating Number of Turns Mounting Type Shaft Diameter Mounting Hole Diameter Termination Style Dimensions Depth Height Length Maximum Operating Temperature Actuator Type
RS Stock No. 892-2428
Mfr. Part No.RRS1R0E
BrandOhmite
MYR2,014.96
Each
units
±10% 500W 325 ° Panel Mount 9.53 mm - Solder Lug 203.2 (Dia.) x 53.98mm - - 53.98mm - Linear Shaft
RS Stock No. 167-9889
Mfr. Part No.RT055AS4701KB
BrandVishay
MYR1,206.184
Each (In a Pack of 25)
units
4.7kΩ ±10% 55W 1 Panel Mount 6 mm 10.5mm Solder Lug 60 (Dia.) x 64mm - - 64mm +320°C -
RS Stock No. 891-5528
Mfr. Part No.RJS800E
BrandOhmite
MYR307.99
Each
units
800Ω ±10% 50W 300 ° Panel Mount 6.35 mm - Solder Lug 58.67 (Dia.) x 34.93mm - - 34.93mm - Linear Shaft
RS Stock No. 892-2444
Mfr. Part No.RRS8R0E
BrandOhmite
MYR1,787.14
Each
units
±10% 500W 325 ° Panel Mount 9.53 mm - Solder Lug 203.2 (Dia.) x 53.98mm - - 53.98mm - Linear Shaft
RS Stock No. 891-5622
Mfr. Part No.RNS1R0E
BrandOhmite
MYR1,349.92
Each
units
±10% 300W 320 ° Panel Mount 9.53 mm - Solder Lug 152.4 (Dia.) x 60.33mm - - 60.33mm - Linear Shaft
RS Stock No. 891-5348
Mfr. Part No.RES350E
MYR211.356
Each (In a Pack of 5)
units
350Ω ±10% 12.5W 300 ° Panel Mount 3.18 mm - Solder Lug 22.23 (Dia.) x 17.46mm - - 17.46mm - Linear Shaft
RS Stock No. 891-5525
Mfr. Part No.RJS8R0E
BrandOhmite
MYR304.95
Each
units
±10% 50W 300 ° Panel Mount 6.35 mm - Solder Lug 58.67 (Dia.) x 34.93mm - - 34.93mm - Linear Shaft
RS Stock No. 788-7671
Mfr. Part No.RT100AS1000KB
BrandVishay
MYR1,144.51
Each
units
100Ω ±10% 100W 1 Panel Mount 6 mm 10.5mm Solder Lug 85 (Dia.) x 81mm - - 81mm +320°C -
RS Stock No. 892-8221
Mfr. Part No.RKS750E
BrandOhmite
MYR489.96
Each
units
750Ω ±10% 100W 300 ° Panel Mount 6.35 mm - Solder Lug 79.38 (Dia.) x 44.45mm - - 44.45mm - Linear Shaft
RS Stock No. 891-5581
Mfr. Part No.RLS15RE
MYR546.48
Each
units
15Ω ±10% 150W 300 ° Panel Mount 6.35 mm - Solder Lug 101.6 (Dia.) x 50.8mm - - 50.8mm - Linear Shaft
RS Stock No. 893-5440
Mfr. Part No.RPS200
BrandOhmite
MYR1,195.168
Each (In a Pack of 5)
units
200Ω ±10% 225W 310 ° Panel Mount 9.53 mm - Solder Lug 127 (Dia.) x 53.98mm - - 53.98mm - Linear Shaft
RS Stock No. 891-5424
Mfr. Part No.RHS3R0E
MYR246.63
Each
units
±10% 25W 300 ° Panel Mount 6.35 mm - Solder Lug 39.62 (Dia.) x 34.93mm - - 34.93mm - Linear Shaft
RS Stock No. 891-5638
Mfr. Part No.RNS300E
BrandOhmite
MYR1,144.22
Each
units
300Ω ±10% 300W 320 ° Panel Mount 9.53 mm - Solder Lug 152.4 (Dia.) x 60.33mm - - 60.33mm - Linear Shaft
RS Stock No. 144-5537
Mfr. Part No.RKS10RE
MYR416.03
Each
units
10Ω 10% 100W 300 ° Panel Mount 6.35 mm - Solder 79.38 (Dia.) x 44.45mm 79.38 (Dia.)mm - 44.45mm - Linear Shaft
RS Stock No. 893-4715
Mfr. Part No.RLSR50E
BrandOhmite
MYR801.04
Each
units
500mΩ ±10% 150W 300 ° Panel Mount 6.35 mm - Solder Lug 101.6 (Dia.) x 50.8mm - - 50.8mm - Linear Shaft
RS Stock No. 891-5313
Mfr. Part No.RES15RE
MYR221.89
Each
units
15Ω ±10% 12.5W 300 ° Panel Mount 3.18 mm - Solder Lug 22.23 (Dia.) x 17.46mm - - 17.46mm - Linear Shaft
RS Stock No. 893-3400
Mfr. Part No.RES35RE
BrandOhmite
MYR214.39
Each
units
35Ω ±10% 12.5W 300 ° Panel Mount 3.18 mm - Solder Lug 22.23 (Dia.) x 17.46mm - - 17.46mm - Linear Shaft
RS Stock No. 891-5418
Mfr. Part No.RHS350E
MYR263.22
Each
units
350Ω ±10% 25W 300 ° Panel Mount 6.35 mm - Solder Lug 39.62 (Dia.) x 34.93mm - - 34.93mm - Linear Shaft
RS Stock No. 788-7687
Mfr. Part No.RT230AS1000KB
BrandVishay
MYR1,919.09
Each
units
100Ω ±10% 250W 1 Panel Mount 10 mm 12mm Solder Lug 143 (Dia.) x 125mm - - 125mm +320°C -
RS Stock No. 827-6407
Mfr. Part No.VRH320 1K K
BrandArcol
MYR790.33
Each
units
1kΩ ±10% - - Surface Mount - - Solder Lug 446 x 93 x 150mm 93mm 150mm 446mm - Slide
Related Products
The Vishay RT Series of linear wire wound ...
Description:
The Vishay RT Series of linear wire wound rheostats are designed for use in professional and industrial equipment. Particularly in equipment where transients, repeated overloads, impacts and vibrations characterise everyday operation.Suggested accessories for these rheostats include control buttons and displays. ...