18 VB230/400-6/25/30LT
12.3 Permissible braking frequency
The braking frequency depends on the adjusted braking current.
Please find below some typical values for braking devices of the VB...-LT type:
For intermediate values please refer to table 3.
Braking current Braking time Braking frequency
VB ...-6LT 6A 5s
10s
15s
30s
1 braking operation per 8s
1 braking operation per 16s
1 braking operation per 25s
1 braking operation per 45s
VB ...-25LT 25A
Rated dev. current decreases to 17A
5s
10s
15s
30s
1 braking operation per 60s
1 braking operation per 120s
1 braking operation per 180s
1 braking operation per 220s
20A
Rated dev. current decreases to 17A
5s
10s
15s
30s
1 braking operation per 40s
1 braking operation per 80s
1 braking operation per 120s
1 braking operation per 220s
15A 5s
10s
15s
30s
1 braking operation per 25s
1 braking operation per 50s
1 braking operation per 75s
1 braking operation per 150s
10A 5s
10s
15s
30s
1 braking operation per 17s
1 braking operation per 35s
1 braking operation per 53s
1 braking operation per 105s
VB ...-30LT 30A
Rated dev. current decreases to 20A
5s
10s
15s
30s
1 braking operation per 90s
1 braking operation per 180s
1 braking operation per 270s
1 braking operation per 330s
20A 5s
10s
15s
30s
1 braking operation per 40s
1 braking operation per 80s
1 braking operation per 120s
1 braking operation per 240s
15A 5s
10s
15s
30s
1 braking operation per 25s
1 braking operation per 50s
1 braking operation per 75s
1 braking operation per 150s
10A 5s
10s
15s
30s
1 braking operation per 17s
1 braking operation per 35s
1 braking operation per 53s
1 braking operation per 105s
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