Note
T00871GB.fm
11
3.
Note
3.1
Protective measures in conjunction with electronic inverters
In addition to the protective measures, machines are divided into class
ratings. The class ratings specify protective measures to be taken to
prevent direct contact. A distinction is made between class ratings I, II
and III.
3.2
Class rating I (grounded conductor)
Power supply-dependent protective measures are protective
measures with a grounded conductor. The grounded conductor is
connected to the inactive bodies of electrical operating equipment. The
grounded conductor (PE) for insulated lines must be marked green-
yellow in its entirety.
Power supply-dependent protective measures shut off excess current
protective devices located upstream if an error occurs.
In the TT-net and TN-S-net:
∗
Protect plug receptacles up to 16 A for single-phase operation with
residual current protective devices that have a rated residual current of
< 30 mA.
∗
Protect 3-phase plug receptacles up to < 32 A with a residual current
protective device that have a rated residual current of < 30 mA. For
operation with electronic inverters, an "all-current sensitive residual
current protective device" with 30 mA must be used. If this is not
possible due to high stray currents (contingent on EMC line filters), a
differential current monitor must be employed.
Class rating
I
II
III
Designation
Grounded
conductor
Protective
insulation
Protective low voltage
Summary of Contents for FUE 5/042/200
Page 1: ...Converter FUE 5 FUE 6 FUE M S 75A Operator s manual 5200006668 08 0811 5 2 0 0 0 0 6 6 6 8 EN...
Page 20: ......
Page 21: ......