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4/88 Cam switches, switch-disconnectors
2010 CA08103002Z-EN
www.eaton.comCharacteristic curves
Component lifespan based on breaking current and utilization category
1)
To ensure a reasonable service life in utilization category AC-4 (extreme load: 100 % inching, reversing, or plug braking),
the motor's standstill current must not exceed the rated operational current of the switch for AC-21A.
Notes
1)
AC-3 and AC-21 at 400 V, AC-15 at 230 V
1
2
3
4 5 6 7 8 10
20 A
T0
0.5
1
2
3
4
5
6
8
10
Breaking current
As control switch (AC-15)
As motor load switch (AC-3)
As load-break switch (AC-21)
Component lifespan (operations 10
5
)
Breaking current
As motor load switch (AC-3)
As load-break switch (AC-21)
T3
Component lifespan (operations 10
5
)
1
2
3 4
6
12
8
30 40 A
0.5
1
2
3
4
5
6
8
10
16 20 25
0.6
0.8
0.5
T5B
T5B T5
T5
1
2
3 4
6
12
8
30 40
1
2
3
4
5
6
8
10
16 20
0.6
0.8
60 80 100 A
T5B T5
T5B
T5
T5B,T5
Breaking current
As motor load switch (AC-3)
As load-break switch (AC-21)
Component lifespan (operations 10
5
)
Breaking current
As motor load switch (AC-3)
As load-break switch (AC-21)
T6,T8
Component lifespan (operations 10
5
)
4
6 8
16 12
0.1
0.2
0.3
0.5
1
2
3
5
60
20
30 40
100
250A
T6
T8
T6
T8
T6
T8
T6
T8
Breaking current
As motor load switch
(AC-3)
As load-break switch (AC-21)
P1
Component lifespan (operations 10
5
)
1
2
3 4
6
12
8
30 40 A
0.5
1
2
3
4
5
6
8
10
16 20 25
0.6
0.8
P1-32
P1-25
P1-25
P1-32
P1-25
Breaking current
As motor load switch
(AC-3)
As load-break switch (AC-21)
P3
Component lifespan (operations 10
5
)
1
2 3
5
20
10
80 100 A
0.1
40 60
0.2
0.3
0.4
0.5
0.6
0.8
1
2
P3-100
P3-63
P3-63 P3-100
P3-100
P3-63
T, P