Siemens MICROMASTER 420 - Screening Methods

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MICROMASTER 420 Reference Manual
Issue A1
25
Table 2-5 Derating with Switching Frequencies
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N+] N+] N+] N+] N+] N+] N+]
0.37 1.2 1.2 1.2 1.2 1.2 1.2 1.1
0.55 1.6 1.6 1.6 1.6 1.6 1.6 1.1
0.75 2.1 2.1 2.1 2.1 1.6 1.6 1.1
1.10 3.0 3.0 2.7 2.7 1.6 1.6 1.1
1.50 4.0 4.0 2.7 2.7 1.6 1.6 1.1
2.20 5.9 5.9 5.1 5.1 3.6 3.6 2.6
3.00 7.7 7.7 5.1 5.1 3.6 3.6 2.6
4.00 10.2 10.2 6.7 6.7 4.8 4.8 3.6
5.50 13.2 13.2 13.2 13.2 9.6 9.6 7.5
7.50 18.4 18.4 13.2 13.2 9.6 9.6 7.5
11.00 26.0 26.0 17.9 17.9 13.5 13.5 10.4
2.10.5 Derating for Sideways Installation
Mounting the inverter sideways is not recommended.
2.10.6 Derating with Single-Phase Input
The following information applies to 4 kW and 5.5 kW 230 V unfiltered inverters
only.
4 kW to be derated to 3 kW.
5.5 kW to be derated to 3.66 kW.
In output current terms this means 13.6 A for the 4 kW inverter and 16.5 A for the
5.5 kW inverter.