Precision Current Shunts

Platzhalter

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.

Platzhalter

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.

Platzhalter

Perfection at every detail

The binding posts of this resistors are our trusted Low Thermal Binding Posts where it makes sense. The current connections feature some proper high current binding posts. A special thermal management lets unwanted heat not even arise. In summary this current shunt is one of the most stable high load resistors, money can buy.

Messingblock in der Fertigung

Platzhalter

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.

Platzhalter

Typical product specifications

model

nominal value
Ω

calibration precision
µΩ/Ω

temperature coefficient
µΩ/Ω per K

RS9010A-R1

RS9010A-R10

RS9010A-R100

0.1Ω

0.01Ω

0.001Ω

stability

µΩ/Ω per year

maximum voltage (Volt)

maximum current
(A)

*1

*1

*1

< 20.0

< 20.0

< 20.0

20

20

20

0.025

0.1

0.25

2.5

10

25

*1 Depending on CalLab

• 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

Platzhalter

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

Platzhalter

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

Imprint | General Terms | Privacy | Contact / Where to find us

© wekomm engineering GmbH 2022