LOW VOLTAGE (ICONS FOR SPD SELECTION) 

Protection against direct and indirect lightning effects (combined Type 1 and 2)

Protection against indirect lightning effects (Type 2)

Protection against induced overvoltages (Type 3)

Protection against electro-magnetic interferences on the line including transient surge suppression

LOW VOLTAGE

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).

Features:

• They are equipped with an internal disconnector with short circuit breaking capability. Therfore in many applications 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 in domestic as well as industrial installations and many other locations with increased environmental conditions.

For AC applications

For basic AC applications

For wind turbine applications

Accessories