Current Derating Depending On The Installation Altitude - Siemens SIMATIC ET 200pro Series Operating Instructions Manual

11.3

Current derating depending on the installation altitude

Current reduction and temperature reduction as a function of the installation altitude
Above 1000 m above sea level, the permissible input output current decreases along with
the permissible ambient operating temperature.
Permissible line supplies dependent on the installation altitude
● For installation altitudes ≤ 2000 m above sea level, it is permissible to connect the
inverter to any of the line supplies that are specified for it.
● For installation altitudes 2000 m ... 4000 m above sea level, the following applies:
– Connection to a TN line system with grounded neutral point is permissible.
– TN systems with grounded line conductor are not permitted.
– The TN line system with grounded neutral point can also be supplied using an
– The phase-to-phase voltage does not have to be reduced.
SIMATIC ET 200pro FC-2 converter
Operating Instructions, 09/2017, FW V4.7 SP9, A5E34257324B AE
isolation transformer.
11.3 Current derating depending on the installation altitude
Technical data
237