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Control Keypad
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7.6.3.1
Tripping Curves of the Integrated Overload Protection
The RVS-DXM allows motor protection according to IEC class 10 or 20 OR according to NEMA class 10, 20,
or 30.
NEMA & IEC Class OVERLOAD curves
NEMA Class 10
1
10
100
1000
10000
0
1
2
3
4
5
6
7
8
Current [I/FLA]
T
im
e
[
sec.
]
IEC Class 10
1
10
100
1000
10000
0
1
2
3
4
5
6
7
8
Current [I/FLA]
T
im
e
[
sec.
]
NEMA Class 20
1
10
100
1000
10000
100000
0
1
2
3
4
5
6
7
8
Current [I/FLA]
T
im
e
[
sec.
]
IEC Class 20
1
10
100
1000
10000
100000
0
1
2
3
4
5
6
7
8
Current [I/FLA]
T
im
e
[
sec.
]
NEMA Class 30
1
10
100
1000
10000
100000
0
1
2
3
4
5
6
7
8
Current [I/FLA]
T
im
e
[
sec.
]
Cold
Hot
Cold
Hot
Cold
Hot
Cold
Hot
Cold
Hot
