Schneider Electric 3.0A User Manual
Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units
48049-136-05
Section 3—Operation
Rev. 01, 07/2012
© 1999–2012 Schneider Electric All Rights Reserved
20-EN
ENGLISH
Section 3—Operation
Switch Setting Adjustment
1. Open switch cover (A).
2. Adjust the appropriate switches (B) to
desired values.
3. Replace switch cover. Use wire seal
MICROTUSEAL (C, not provided), if
necessary, to provide tamper evidence.
necessary, to provide tamper evidence.
Figure 23:
Adjust Switch Settings
Examples
Circuit breaker is rated 2000 A.
Figure 24:
Circuit Breaker Rating
Micrologic 2.0A Trip Unit
1. Set pickup levels.
Figure 25:
Set Pickup Levels
06133205
06
1
33
2
06
06133207
A
B
C
06133208
In 2000 A
0
Ir
Isd
t
06134245
alarm
x Ir
2
2.5
3
4 5
6
8
10
1.5
setting
Isd
instantaneous
.4
.5
.6
.7
.8
.9
.95
.98
.98
1
long time
Ir
x In
06134251
Isd = 2 x Ir = 2800 A
In = 2000 A
Ir = 0.7 x In = 1400 A