Chapter 6—Motor Protection
118
Power Xpert C445 Global Motor Management Relay
MN042003EN—January 2019
www.eaton.com
Current Based Protection Parameters
Table 26. Current Based Protections
Note
1
ABC wiring recommended.
Fault
Code
Default
Status
Fault Action
Motor FLA
Delay (Seconds)
Protection
Action
Units
Note
Min.
Max.
Default
Min.
Max.
Default
19
Thermal Overload
Fault Trip
Enabled
Amps
C445MA2P4…
0.3
2.4
0.3
Class 5
Class 40
Class 5
C445MA005…
1
5
1
Class 5
Class 40
Class 5
C445MA032…
4
32
4
Class 5
Class 40
Class 5
C445MA045…
5.6
45
5.6
Class 5
Class 40
Class 5
C445MB072…
9
72
9
Class 5
Class 40
Class 5
C445MC090…
11
90
11
Class 5
Class 40
Class 5
C445MC136…
17
136
17
Class 5
Class 40
Class 5
C445...ext
ext
800
ext
Class 5
Class 40
Class 5
Fault Warning
Disabled %
1
100
90
0
0
0
7
Instantaneous
Overcurrent
Fault Trip
Disabled % FLA
50
400
400
0.001
2
2
Fault Warning
Disabled % FLA
50
400
400
0.2
5
2
8
Jam
Fault Trip
Disabled % FLA
50
400
400
1
60
10
Fault Warning
Disabled % FLA
50
400
400
0.2
5
2
20
Stall
Fault Trip
Disabled % FLA
50
400
200
0
0
0
14
Undercurrent
Fault Trip
Disabled % FLA
10
90
50
1
60
20
Fault Warning
Disabled % FLA
10
90
50
0.2
5
2
6
Current Unbalance
Fault Trip
Enabled
%
1
60
15
1
60
15
Fault Warning
Disabled %
1
60
15
0.2
5
2
10
Phase Loss
Fault Trip
Enabled
%
60
60
60
2
2
2
4
Ground Fault (earth)
(Debounce time is
in milliseconds)
Fault Trip
Enabled
Amps
C445MA2P4…
0.12
2.4
1
0
60,000
5,000
C445MA005…
0.25
5
3
0
60,000
5,000
C445MA032…
1
1
9.6
3
0
60,000
5,000
C445MA045…
1
1
13.5
3
0
60,000
5,000
C445MB072…
3
1
21.6
3
0
60,000
5,000
C445MC090…
3
27
3
0
60,000
5,000
C445MC136…
34
40.8
34
0
60,000
5,000
C445...ext
30% of
CT
Primary
50% of
CT
Primary
50% of
CT
Primary
0
60,000
5,000