RS PRO

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 Operate
Rheostats 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 Types
Several 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.
You are viewing 1 - 20 of 249 results
Display:
Results per page
20
  • 20
  • 50
  • 100
Price
(Price shown excludes VAT)
Part Details Brand Stock Maximum Resistance Tolerance Power Rating Number of Turns Mounting Type Shaft Diameter Mounting Hole Diameter Termination Style Dimensions Depth Length Current Rating Maximum Voltage Rating Shaft Length Core Type Actuator Type Electrical Taper
Arcol Ohmite 50W Rheostat, 50Ω, ±10% Arcol Ohmite 74 50Ω ±10% 50W 300 ° Panel Mount 6.35 mm - Solder Lug 58.67 (Dia.) x 34.93mm - 34.93mm 1A 750 Vrms 8.73mm Open Linear Shaft Linear
Vishay 25W Wirewound Rheostat, 4.7kΩ, ±10% Vishay 48 4.7kΩ ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - 50mm - - - - - -
VRH320 Wirewound slide rheostat 100R Arcol 45 100Ω - - - Surface Mount - - Solder Lug 446 x 93 x 150mm 93mm 446mm 1.8A 600 V - - Slide Linear
Arcol Ohmite 25W Linear Rheostat, 25Ω, 10% Arcol Ohmite 44 25Ω 10% 25W 300 ° Panel Mount 6.35 mm - Solder 39.62 (Dia.) x 34.93mm 39.62 (Dia.)mm 34.93mm 1A 500 Vrms 8.73mm Open Linear Shaft Angular
Arcol Ohmite 25W Rheostat, 100Ω, ±10% Arcol Ohmite 40 100Ω ±10% 25W 300 ° Panel Mount 6.35 mm - Solder Lug 39.62 (Dia.) x 34.93mm - 34.93mm 500mA 500 Vrms 8.73mm Open Linear Shaft Linear
Vishay 25W Wirewound Rheostat, 100Ω, ±10% Vishay 36 100Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - 50mm - - - - - -
Rheostat WWt 15R 150W 3.163A Shaft 1/4 Arcol Ohmite 28 15Ω ±10% 150W 300 ° Panel Mount 6.35 mm - Solder Lug 101.6 (Dia.) x 50.8mm - 50.8mm 3.16A 1200 Vrms 8.73mm Open Linear Shaft Linear
VRH320 wirewound slide rheostat, 33R Arcol 26 33Ω - - - Surface Mount - - Solder Lug 446 x 93 x 150mm 93mm 446mm 3.1A 600 V - - Slide Linear
Vishay 25W Wirewound Rheostat, 220Ω, ±10% Vishay 25 220Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - 50mm - - - - - -
Vishay 25W Wirewound Rheostat, 22Ω, ±10% Vishay 23 22Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - 50mm - 23.5 V 12mm - - -
Arcol Ohmite 25W Linear Rheostat, 50Ω, 10% Arcol Ohmite 22 50Ω 10% 25W 300 ° Panel Mount 6.35 mm - Solder 39.62 (Dia.) x 34.93mm 39.62 (Dia.)mm 34.93mm 700mA 500 Vrms 8.73mm Open Linear Shaft Angular
Vishay 55W Wirewound Rheostat, 10Ω, ±10% Vishay 22 10Ω ±10% 55W 1 Panel Mount 6 mm 10.5mm Solder Lug 60 (Dia.) x 64mm - 64mm - - - - - -
VRH320 wirewound slide rheostat, 10R Arcol 21 10Ω - - - Surface Mount - - Solder Lug 446 x 93 x 150mm 93mm 446mm 5.7A 600 V - - Slide Linear
Arcol Ohmite 25W Linear Rheostat, 5kΩ, 10% Arcol Ohmite 19 5kΩ 10% 25W 300 ° Panel Mount 6.35 mm - Solder 39.62 (Dia.) x 34.93mm 39.62 (Dia.)mm 34.93mm 70mA 500 Vrms 8.73mm Open Linear Shaft Angular
Vishay 55W Wirewound Rheostat, 10kΩ, ±10% Vishay 19 10kΩ ±10% 55W 1 Panel Mount 6 mm 10.5mm Solder Lug 60 (Dia.) x 64mm - 64mm - - - - - -
VRH320 wirewound slide rheostat, 1K Arcol 18 1kΩ ±10% - - Surface Mount - - Solder Lug 446 x 93 x 150mm 93mm 446mm 570mA 600 V - - Slide Linear
Vishay 25W Wirewound Rheostat, 47Ω, ±10% Vishay 17 47Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - 50mm - - - - - -
Arcol Ohmite 50W Linear Rheostat, 6Ω, 10% Arcol Ohmite 16 10% 50W 300 ° Panel Mount 6.35 mm - Solder 58.67 (Dia.) x 34.93mm 58.67 (Dia.)mm 34.93mm 2.88A 750 Vrms 8.73mm Open Linear Shaft Angular
Vishay 55W Wirewound Rheostat, 2.2kΩ, ±10% Vishay 15 2.2kΩ ±10% 55W 1 Panel Mount 6 mm 10.5mm Solder Lug 60 (Dia.) x 64mm - 64mm - - - - - -
Arcol Ohmite 25W Linear Rheostat, 1kΩ, 10% Arcol Ohmite 14 1kΩ 10% 25W 300 ° Panel Mount 6.35 mm - Solder 39.62 (Dia.) x 34.93mm 39.62 (Dia.)mm 34.93mm 150mA 500 Vrms 8.73mm Open Linear Shaft Angular
Check Our Stock Volumes
Enter the quantity you require and click 'Check'.

Stock information was updated on
.
This information is updated daily so availability may vary at time of order placement.
RS Stock No:
I'm Looking For 
Compare list full
You can only compare 8 products at a time

View or remove your products on your Compare page
You are viewing 1 - 20 of 249 results