Detailed information on DER3B Italian dossena's B-type leakage protection relay:

The newly developed product B-type leakage protection relay by Dossena in Italy is currently the only one on the market that meets the requirementsIEC 60947-2:2006 annex M ed.4.Standard products can completely replace the B-type leakage protection relays of Bender and Socomic currently on the market, and have a more advantageous price.

The B-type leakage protection relay from Dossena, Italy, can be used in low-voltage power grids with DC, AC, or a mixture of AC and DC. Especially suitable for frequency converters, UPS， Machine tools, photovoltaics, construction, lifting, mining, medical equipment, and many environments where A-type leakage protection relays cannot be detected.

DOSSENA' s Earth leakage relay in class B is the only one that complies with the standard IEC 60947-2:2006 annex M ed.4.