Siemens MICROMASTER 420 - Manual (Page 172)

7 Electro-magnetic compatibility (EMC) Issue 07/04
MICROMASTER 420 Operating Instructions
172 6SE6400-5AA00-0BP0
Table 7-5 Compliance Table
Model Remarks
Class 1 – General Industrial
6SE6420-2U***-**A0 Unfiltered units, all voltages and powers.
Class 2 – Filtered Industrial
6SE6420-2A***-**A0 All units with integral Class A filters
6SE6420-2A***-**A0 with
6SE6400-2FA00-6AD0 Frame size A units 400-480 V with external Class A footprint filters
Class 3 – Filtered for residential, commercial and light industry
6SE6420-2U***-**A0 with
6SE6400-2FB0*-***0 Unfiltered units fitted with external Class B footprint filters.
* denotes any value is allowed.