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3.6
Electrical connection MB4PV - Siemens V20
WARNING!
Danger to life due to electric shock when not grounded. For missing or incorrectly
implemented protective conductor connection, high voltages can be present at open,
exposed parts, which when touched, can result in death or severe injury.
Ground the machine in compliance with the applicable regulations.
The machine is installed and ready to operate. Please verify if the type of current, voltage and
protection fuse correspond to the values specified. A protective earth ground wire connection
must be available. Main Fuse 16A. Due to the design, the leakage current is greater than 3,5
mA. We ask for due attention while executing machine tests within the framework of industrial
safety guidelines.
The earth leakage current of the SINAMICS V20 inverter may exceed 3.5 mA AC. Due to this, a
fixed earth connection is required and the minimum size of the protective earth conductor shall
comply with the local safety regulations for high leakage current equipment.
The SINAMICS V20 inverter has been designed to be protected by fuses; however, as the
inverter can cause a DC current in the protective earthing conductor, if a Residual Current
Device (RCD) is to be used upstream in the supply, observe the following:
All SINAMICS V20 single phase AC 230 V inverters (filtered or unfiltered) can be operated
on a type A1) 30 mA or type B(k) 30 mA RCD.
All SINAMICS V20 three phase AC 400 V inverters (unfiltered) can be operated on a type
B(k) 30 mA RCD.
SINAMICS V20 three phase AC 400 V inverters (filtered) with rated power up to 2.2 kW can
be operated on a type B(k) 30 mA RCD. For inverters with rated power over 3.0 kW, a type
B(k) 300 mA RCD can be used.
To use a type A RCD, the regulations in this FAQ must be followed: Siemens Web site
(http://support.automation.siemens.com/WW/view/en/49232264)
INFORMATION
The following pages contain general information on the operation of frequency inverters.
EN
MB4P ǀ MB4PV
86
Translation of original instructions
Version 1.1.8 - 2021-7-29
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