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Configuration
Approvals
48
Example: I
/I
= 6, t
A
N
10000
A
10000
100
18
10
1
100
0.1
Figure 6:
Tripping curve with 3-phase balanced load
The motor is safely protected with the tripping classes CLASS
5, 10 and 15.
The motor-protective system ZEV is compliant with
IEC/EN 60947 regulations for low-voltage switchgear and
EN and fulfils the requirements of the 94/9/EC (ATEX 100a)
directives for the protection of motors operated in EEx e
areas.
c
0102
The system is approved by UL and CSA for the USA and
Canada.
U s
05/11 MN03407008Z-DE/EN
= 18 s
E
CLASS 40
35
30
25
20
15
10
CLASS 5
6
1
10
l
e
PTB 10 ATEX 3007
II(2)G
100
l
e
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