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AShunt-Slide7

Shunts are specified at a full scale current rating that results in a given output. For example, an RSA-15-100 will have a 100mV output at 15A. For continuous operation, it is recommended that the shunt be operated at no more than 2/3rd its full scale current rating. This means that the aforementioned 15A shunt should be operated at no more than 10A continuously. Next, determine the desired voltage output. The industry standards in North America are 50mV and 100mV, while 60mV and 75mV are common in Europe. It is possible to design the shunt for virtually any desired output, and Riedon welcomes the opportunity to customize these devices to the customer’s requirement. A tolerance of 0.25% is standard on most shunts, while tolerances as tight as 0.1% may be available at customer request. One of the final steps is to determine if the shunt will be mounted to a panel, or secured to a busbar. Once all of these criteria are known it is simply a matter of choosing the desired form factor that meets the above specifications.

PTM Published on: 2018-03-19