Brochure
PowerPact H-, J-, and L-Frame Circuit Breakers
Trip Units
88
02/2016 © 2011–2016 Schneider Electric
All Rights Reserved
Table 64: Micrologic 3 Trip Unit
Ratings I
n
at 104°F (40°C)
1
60 A 100 A 150 A 250 A 400 A 600 A
Circuit Breaker
H-frame X X X
J-frame X
L-frame X X X
Micrologic 3.2 / 3.3 trip units
2
L Long-time protection
Pick-Up (A)
Tripping between 1.05 and 1.20 I
r
I
r
Value depending on sensor rating (I
n
) and setting on rotary switch
I
n
=60 A I
r
= 1520 25 30 35 40455060
I
n
= 100 A I
r
= 3540455060708090100
I
n
= 150 A I
r
=50607080 90 100 110 125 150
I
n
= 250 A I
r
=7080 100 125 150 175 200 225 250
I
n
= 400 A I
r
= 125 150 175 200 225 250 300 350 400
I
n
= 600 A I
r
= 200 225 250 300 350 400 450 500 600
Time Delay (s)
Accuracy 0 to -20%
t
r
0.5 1 2 4 8 16
1.5 x I
r
15 25 50 100 200 400
6 x I
r
0.5 1 2 4 8 16
7.2 x I
r
0.35 0.7 1.4 2.8 5.5 11
Thermal memory 20 minutes before and after tripping
I Instantaneous
Pick-up (A)
accuracy ± 15%
I
i
x
60 A, 100 A 1.5 2 3 4 6 8 10 12 15
150 A 1.5 2 3 4 6 8 10 12 15
250 A 1.5 2 3 4 5 6 8 10 12
400 A 1.5 2 3 4 5 6 8 10 12
600 A 1.5 2 3 4 5 6 8 10 11
Non-tripping time
Maximum break time
10 ms
50 ms for I > 1.5 Ii
Micrologic 3.2S / 3.3S trip units
2
L Long-time protection
Pick-Up (A)
Tripping between 1.05 and 1.20 I
r
I
r
Value depending on sensor rating (I
n
) and setting on rotary switch
I
n
=60 A I
r
= 1520 25 30 35 40455060
I
n
= 100 A I
r
= 3540455060708090100
I
n
= 150 A I
r
=50607080 90 100 110 125 150
I
n
= 250 A I
r
=7080 100 125 150 175 200 225 250
I
n
= 400 A I
r
= 125 150 175 200 225 250 300 350 400
I
n
= 600 A I
r
= 200 225 250 300 350 400 450 500 600
Time Delay (s)
Accuracy 0 to -20%
t
r
non-adjustable
1.5 x I
r
400
6 x I
r
16
7.2 x I
r
11
Thermal memory 20 minutes before and after tripping
S Short-time protection
Pick-up (A) accuracy ± 10% I
sd
- I
r
x... 1.5 2 3 4 5 6 7 8 10
Time delay (ms)
t
sd
non-adjustable
Non-tripping time
Maximum break time
20
80
I Instantaneous
Pick-up (A)
accuracy ± 15%
I
i
x
60 A, 100 A 1.5 2 3 4 6 8 10 12 15
150 A 1.5 2 3 4 6 8 10 12 15
250 A 1.5 2 3 4 5 6 8 10 12
400 A 1.5 2 3 4 5 6 8 10 12
600 A 1.5 2 3 4 5 6 8 10 11
Non-tripping time
Maximum break time
10 ms
50 ms for I > 1.5 Ii
1
If the trip units are used in high-temperature environments, the Micrologic trip unit setting must take into account the thermal limitations of the circuit breaker. See
the temperature derating information on page 150.
2
Mission Critical trip units have a “-W” at the end of the number (for example 3.2-W). All other protections are the same and have the same trip curves.