3 Potentiometer with Switch

VR3SW is coupled with a micro switch with cam principle such that change in resisitance comes only after operating of micro switch. This is advantageous in critical condition where power to the potentiometer can be permanently disconnected using NC NO micro switch.

  • Potentiometer V.R-3SW is a panel setting device for a maximum wattage ratting upto 3 watt with a micro NC / NO switch with maximum current rating upto 5A @ 230VAC
  • V.R-3SW has been specifically designed to have longer life, No discontinuity and smooth movement of shaft along with a additional feature to completely isolate the system from voltage entering the system.
  • It has a feasibility to customize in several ways. Such as shaft modification, lug terminal arrangement, a vast range of ohmic value from 10 ohms to 100k ohms.
  • The capability of the company to produce a vast range of ohmic value in potentiometer is a USP on its own.
  • The Product can be made to Ingress protection upto IP65 and above on request.
  • V.R-3SW has several other variants with model number V.R-3 (panel set potetniometer), V.R-3G (Ganged Potentiometer), V.R-3S (Endless Potentiometer), V.R 3CT (4 wire potentiometer),
Technical
Mechanical
Electrical
Technical

 

Mounting Specification / Acessories

For best performance of V.R-3SW below points needs to be taken into consideration.
1) The hole in the panel should not be more than 9.5mm.
2) V.R-3SW should be mounted with Star washer given along with the product and perpendicularity between the panel and axis of potentiometer should be maintained.
3) For applications with extreme vibration please use lock nut assembly which is being supplied on the demand.

Operating Sequence

  • From 0 to 54 degree the resistance between pin 1 and 2 and pin 3 and 2 will be infinite and switch will be in Normally
    close mode
  • From 54 to 285 deg resistance between bin 1 and 2 will slowly increase from from 0 ohms to full range while the resistance between pin 3 and 2 will decrease from full range to 0 ohms

Ordering Information
V.R-3SW - Resistance Value - Shaft length - Any specific Info.
V.R-3SW-10k Ohms-25mm

Mechanical

Housing Material  ROHS complaint Material
Mechanical Angle of rotation 285deg +/- 15 deg
Starting Torque.  
End Stop Torque  
Bush Material Brass
Spindle Material Brass (standard). S.S on request.
Rotational Life expectancy 50,000 cycles.
Electrical
Resistance Range 10 ohms to 100kOhms
Total resistance tolerance +/-10% (Standard) +/- 5% or +/-2% available on request.
End Resistance 2 ohm or 0.1% which ever is greater
Temperature coefficient of resistance Maximum 130 ppm / deg. C
Power rating 3 watt @ 40 deg C
Maximum wiper current Based on power rating of potentiometer and applied voltage
Maximum working voltage 250Vdc
Insulation Resistance 200 Mohms @ 500Vdc
Voltage Proof 1500Vdc for 1 min @ sea Level
Effective Electrical angle 226 +/- 15deg
Temperature range upto 70 deg C
Standard resistance range 10, 25, 50, 100, 250, 500, 1K, 2K, 2K5, 3K, 5K, 10K, 15K,
20K, 25K, 50K, 100K. (Any other values on request)

 

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