Precision Current Shunts

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When you like a bit more


To work with currents up to  30A we have made special resistors which fulfil our quality requirements. Excellent long term stability, very low self heating and a maximum of independence from environmental influences define these resistors as well. All that effort so you can concentrate yourself onto your work and your measurement instrument just do what they are meant to to - their work.

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Hochlast-Referenzwiderstand

Stable, robust and very precise


For current measuring shunts we apply the very same requirements as on all of our products. You need to be able to trust them without compromise. To reach this goal, we equipped our Precision Current Shunts with a very low yearly drift of typ. 3 µΩ/Ω per year. Together with an excellent, low temperature coefficient, you can obtain the most precise measurement results possible. As the self heating effect is very low, you do not need to bother about this effect for currents up to 30A.

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Messingblock in der Fertigung
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Applications


At every place where it is required to measure currents up to 30A , the                                    precision current shunt should be the first choice. Independent institutes have compared the                                  resistor with products made big names companies. In every case, our resistor was found to be better and more stable.

Logo wekomm engineering GmbH
Logo wekomm engineering GmbH
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Typical product specifications

model

nominal value
Ω

calibration precision
µΩ/Ω

temperature coefficient
µ
Ω/Ω per K

RS9010A-R1 

RS9010A-R10

RS9010A-R100

5

20

50

0.1Ω

0.01Ω

0.001Ω

< 1.0

< 1.0

< 1.0

30

30

30

2

0,3

0,03

20

30

30

stability

µΩ/Ω per year

maximum voltage (Volt)

maximum current
(A)

  • Aging/Drift: < 1 µΩ / Ω per year (independend from environmental influences)
  • Temperature coefficient: < 0,3 µΩ / Ω per K
  • repeating error (hysteresis): 30°C – neglectible within 20°C to 30°C
  • wide operation range from  20°C to 30°C
  • no special requirements regarding temperature
  • mechanically insensitive and completely immune to ambient pressure changes
  • No oil bath required
  • custom versions possible
  • Standard size: W 16 x H 10 x D 11,5cm
  • Weight: ca. 4,5 kg
  • Made in Germany

For more information get the datasheet here

Optimal, geschützter Transportkoffer
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Accessories


For optimum protection while transporting we recommend our transportation box for two resistors.


Additional accessories are low thermal cables in two variants:


2-wire

4-wire

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Where to buy


Orders in Germany a best done via dataTec, their sales and support team will be glad to assist you. vornehmen – for details you are welcome to  ask us as well.


For orders from outside Germany please contact us directly.


Information about our calibration service are available here.

Resistance Standard

© wekomm engineering GmbH, 2021