Riedon expands resistor range to measure and monitor up to 10,000A

Power and precision resistor specialist, Riedon, has expanded its portfolio of precision current shunts to provide one of the broadest range of current ratings available, says the company.

It responded to increases in the output levels from renewable energy sources, higher capacity batteries that require shorter charging times, and the widespread electrification of heavy industry, to design its shunt resistors to enable accurate measurement and monitoring of high currents.

With additions to the RCS, RSH, RSI, RSJ, RSL, and RSN series of precision shunt resistors, Riedon believes it has optimised the performance-value proposition at all points along the current measurement scale, from one to 10,000A, while offering enhanced measurement bandwidth at the desired operating current. A four‑point Kelvin connection ensures accuracy by decreasing the influence of terminations when measuring the voltage across the shunt.

The very low resistance values required for shunts, as low as five micro Ohm for the 10,000A, 50mV output RSL-10000-50, are achieved using Manganin resistive elements. These are manufactured to a standard tolerance of 0.25 per cent with some series offering 0.1 per cent options. Other options include 50 or 100mV outputs and, where applicable, the resistors are mounted on Bakelite bases.

Riedon’s in-house manufacturing and design capability means that it can compete on price and delivery while also supporting custom designs, says the company.

All Riedon precision current shunts use rugged designs for increased durability and are produced to rigorous assembly and performance standards, using industry recognised standard materials to provide full RoHS compliance.

Parts will be available for purchase from distributor, Digi-Key.

Formed in 1960, Riedon has supplied wire-wound, thick and thin film, and also foil resistive products to aerospace, military and instrumentation industries.

Riedon employs more than 130 team members worldwide and has manufacturing, technical support and sales facilities in the USA, Europe, Asia, and Mexico.



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