1. General
This manual describes the general functions of the arc protection
unit, it also includes mounting and configuration instructions.
By using VAMP 121(D) in switchgears considerable safety
improvements are obtained in the form of minimized injury and
damage in case of an arc fault.
VAMP 121(D) is a “stand alone” system, which gives a compact
solution when the application doesn’t require overcurrent
measurement. It is possible to connect 10 arc sensors, of the type
VA 1 DA, to the VAMP 121(D) unit.
The VAMP 121(D) arc protection unit has default settings when
delivered from the factory. The unit must be configured as
described later in this document.
1.1. Arc protection unit VAMP 121(D)
Figure 1.1-1 Arc protection unit VAMP 121
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