ZOTUP - LOW VOLTAGE SPDs FOR AC APPLICATIONS_II

ZOTUP spds for low voltage AC applications.Typical use: in TN-C, TN-S, TT- or IT-systems with connection type CT1 (4+0 and 3+0) or with connection type CT2 (1+1 or 3+1 connection) according HD 60364-5-534 . They are generally installed as close as possible to the origin of the installation, e.g. in Main Distribution Boards (MDBs), as well as in Sub Distribution Boards (SDBs). They are equipped with an internal disconnector with short circuit breaking capability, which means they do not require a backup fuse as an external disconnector. They provide a progressive indicator showing the remaining performance, which simplifies maintenance and facilitates the planning of replacement during regular verifications and checks. They are designed for Pollution Degree 3, which makes them suitable for a wide range of applications indomestic as well as industrial installations and many other locations with increased environmental conditions.

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