SACE ® TMAX XT ® UL/CSA LOW VOLTAGE MOLDED CASE CIRCUIT-BREAKERS UL489 AND CSA C22.2 STANDARDS
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— Characteristic curves Trip curves with electronic trip unit Ekip Dip
XT2-XT4 Ekip M Dip LIU L function (cold trip)
XT2-XT4 Ekip M Dip LIU (hot trip)
t-hot/t-cold
t [s]
1.2
10 4
0.4...1
0.4
1
10 3
1
3E
5E
10E
20E
10 2
0.8
20E
10
0.6
3E
0.4
1
10 -1
0.2
0
10 -2
0.2 -
10 -3
10 2
10
2
1
1
10
10 -1
10
10 3
x In
Time [s]
XT2-XT4 Ekip M Dip LIU I function
XT2-XT4 Ekip M Dip LIU U function
t [s]
t [s]
10 3
10 4
10 2
10 3
6
13
10
10 2
1
10
1
10 -1
10 -1
10 -2
10 -3
10 -2
10 -4
10 -3
10 2
10 2 x I1
10
10
1
1
10 -1
10 -1
x In
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