The resistance boxes from the SRM-3, SRM-6, SRM-9 series are designed for the provision of a wide range of reproducible resistance values.  They are distinguished by the gradation based on the amount of the involved decades (3, 6 or 9) and a correspondingly typical size of the case. At the same time, each model is represented by three design versions that differ from each other by their accuracy class. They are designed for application in direct and alternating current circuits.

Download Datasheet for SRM Resistance Boxes