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000868BG
5 - Installation
Installation of the second protective earthing cable
The installation of a second earth cable may be required by the
regulations of the country of installation. In making the connection, the
following conditions must be fullled:
1. the ground cable must be secured to one of the dedicated connection
points and identied by the symbol
2. use a M6 cable lug .
3. the cable lug must be installed between two toothed washers
4. Secure the cable lug using the screw and the two washers tightening
to a torque of 11Nm.
Residual current protection device
Based on the requirements of the installation country and plant conguration
could it be necessary to install a residual current protection device to protect
the AC line between the inverter and the grid connection point.
The residual current protection device must meet the following
characteristics:
PVS-50-TL PVS-60-TL
Type A / AC
Sensibility 500mA 600mA
In accordance with article 712.413.1.1.1.2 of Section 712 of IEC Standard 64-8/7, we hereby
declare that, because of their construction, ABB inverters do not inject ground fault direct
currents.
In the case of systems which consist of several inverters connected to a single switch with
differential protection it is recommended that a device is installed which allows the adjustment
of the tripping value and the tripping time.
Load protection switch (AC disconnect switch)
To protect the AC connection line of the inverter, an overcurrent protection
device with the following features must be installed:
PVS-50-TL PVS-60-TL
Type Automatic circuit breaker with differential thermal-magnetic protection
Voltage/current rating 100 A / 400 V 100 A / 480 V
Magnetic protection characteristic B/C
Number of poles 3/4
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