Products for USB Sensing and Control
Products for USB Sensing and Control


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Draw Wire Encoder (2.5m)

ID: ENC4108_0
Recommended for new designs: This product is sourced from another supplier, but it (or a similar replacement with a compatible form, fit and function) is estimated to be available for as long as it is available from the supplier.

Like a digital tape measure, this 2500mm draw wire encoder measures the length of wire pulled out of it.


Quantity Available: 26

Qty Price
5 $158.40
10 $151.80

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 encoder 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 encoder itself has four M3 screw threads on the back for easy installation.


When the wire is pulled out, the sensor produces a quadrature signal 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.


This quadrature encoder can be read by an encoder interface by fitting the end of the cable with the appropriate connector. See the Connection & Compatibility tab for details.

Encoder Interfaces

This draw-wire encoder must be read by an encoder interface. These interfaces will interpret the two quadrature signals in order to determine the continuous position of the draw wire. The following interfaces are compatible with this encoder:

Product Encoder Interface
Image Part Number Price Number of Encoder Inputs Count Rate Max
1047_1B $75.00 4 1E+06 pulses/s
1057_2B $50.00 1 2E+06 pulses/s
1065_1B $75.00 1 500000 cycles/s
DCC1000_0 $75.00 1 400000 pulses/s
DCC1002_0 $40.00 1 400000 pulses/s
ENC1000_0 $15.00 1 400000 pulses/s

Encoder Cables

You can easily connect this draw-wire encoder to a Phidgets encoder interface by cutting the end off of a Phidget encoder cable and soldering the wires to the encoder as described in this table. Below you'll find a list of available encoder cables:

Function 3532 - Encoder 3019 - Phidget cable
+5V Red Red
Ground Black Black
Data (A) White White
Data (B) Green Brown
Index (Z) Yellow Green

Alternatively, you could buy the male connector (Molex part 50-57-9405), and crimp it onto the end of the cable, if you have the appropriate tools.

Product Physical Properties
Image Part Number Price Cable Length Cable Gauge
3019_0 $5.00 500 mm 26 AWG

Product Specifications

Encoder Properties
Manufacturer Part Number RLC63D-2500-D1F-1M
Output Circuit Type Push-Pull
Length Resolution 100 μm/cyc
Wire Pull Length 2.5 m
Electrical Properties
Supply Voltage Max 5 V DC
Current Consumption Max 60 mA
Physical Properties
Wire Load Maximum 255 g
Wire Pull Speed Max 1 m/s
Weight 580 g
Operating Temperature Min -30 °C
Operating Temperature Max 90 °C
Screw Thread Size M3
IP Rating IP54


Here are our draw wire encoders:

Product Encoder Properties Physical Properties
Image Part Number Price Output Circuit Type Length Resolution Wire Pull Length Weight
ENC4104_0 $145.00 Push-Pull 80 μm/cyc 1 m 305 g
ENC4106_0 $135.00 Push-Pull 100 μm/cyc 600 mm 255 g
ENC4107_0 $150.00 Push-Pull 100 μm/cyc 1.5 m 485 g
ENC4108_0 $165.00 Push-Pull 100 μm/cyc 2.5 m 580 g