The ZC-B1M displays the leakage current in real time as well as the number of recorded surges arrester operations. An increase in the leakage current level indicates there is abnormality in the surge arrester. This can be checked at any time during a regular inspection with the leakage current meter fitted on the ZC-B1M, while the counter records and shows the number of surge arrester operations against surges.

• Displaying the leakage current of the arrester in real time
• Displaying the number of surge arrester operations