POT4202_0 Draw Wire Potentiometer (2m)

Product Code:
£273.36 £227.80
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Like a digital tape measure, this 2m draw wire potentiometer measures the length of wire pulled out of it.

POT4202_0 - Draw Wire Potentiometer (2m) face view
POT4202_0 - Draw Wire Potentiometer (2m) face view

In complex mechanical systems, it is often very difficult to accurately measure the movement of a single part, particularly if it has several degrees of freedom. The draw wire potentiometer is a versatile solution to this very problem; it can be attached to a part using an M5 screw or fastened to the end with a zip tie, and the potentiometer itself has a pair of M5 screw threads on the back for easy installation.

When the wire is pulled out, the sensor produces a voltage to describe the length of wire exposed. The reel is spring loaded, so it will retract when there is no tension in the wire. Multiple draw wire sensors could be used to track the position in more than one dimension.

Sensor Properties

Sensor Type Distance (Draw Wire)
Wire Pull Length 2 m
Potentiometer Impedance 5 kΩ
Repeatability Error Max 2 %

Electrical Properties

Supply Voltage Min 5 V DC
Supply Voltage Max 24 V DC

Physical Properties

IP Rating IP54
Wire Load Maximum 16 kg
Wire Pull Speed Max 600 mm/s
Lifespan 200000 actuations
Weight 645 g
Operating Temperature Min -10 °C
Operating Temperature Max 70 °C
Screw Thread Size M5


Mechanical Drawings

You can connect this potentiometer to any board with an analog input by soldering a sensor cable to the wires as described below:

POT4202  Sensor Cable 
 Red  Red
 Black  Black
 Yellow  White
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