Siemens ECOFAST Handbuch Seite 135

Maximum switching frequency when I
Maximum switching frequency when I
0.1
Maximum switching frequency when I
0.1
Fig. A-3: Maximum switching frequency when I
ECOFAST Motor Starters
GWA 4NEB 950 5221-12 DS 02
= 6 x I
a
= 6 x I
a
1 10
Cyclic duration factor t
ED
= 7.19 x I
a
1 10
Cyclic duration factor t
ED
= 6 x I and I
e
a
Technical data
and I = 7.19 x I
e a e
e
100 1000
in [s]
e
100 1000
in [s]
= 7.19 x I
e
a
10000
10000
A-5