Brochure
PowerPact H-, J-, and L-Frame Circuit Breakers
Trip Units
92
02/2016 © 2011–2016 Schneider Electric
All Rights Reserved
Table 66: Micrologic 5/6 Trip Unit
1
Ratings I
n
at 104°F (40°C)
2
60 A 100 A 150 A 250 A 400 A 600 A
Circuit Breaker
H-frame X X X
J-frame X
L-frame XX
L Long-time protection
Pick-up (A)
tripping between
1.05 and 1.20 I
r
I
r
rotary switch Value depending on the trip unit rating (I
n
) and setting on rotary switch
I
n
= 60 A I
r
= 15 20 25 30 35 40 45 50 60
I
n
= 100 A I
r
= 35 40 45 50 60 70 8090100
I
n
= 150 A I
r
= 50 60 70 80 90 100 110 125 150
I
n
= 250 A Ir = 70 80 100 125 150 175 200 225 250
I
n
= 400 A Ir = 125 150 175 200 225 250 300 350 400
I
n
= 600 A Ir = 200 225 250 300 350 400 450 500 600
keypad setting Fine adjustment in 1 A steps below maximum value set on rotary switch
Time Delay (s)
Accuracy 0 to -20%
tr = keypad setting 0.5 1 2 4 8 16
1.5 x Ir 15 25 50 100 200 400
6 x Ir 0.5 1 2 4 8 16
7.2 x Ir 0.35 0.7 1.4 2.8 5.5 11
Thermal memory 20 minutes before and after tripping
S Short-time protection
Pick-up (A)
accuracy ± 10%
I
sd
keypad setting
1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 88.5 9 9.5 10
Fine adjustment in 0.5 x I
r
steps using the keypad
Time delay
t
sd
=
Keypad
setting
I
2
t Off 0 0.1 s 0.2 s 0.3 s 0.4 s
I
2
t On — 0.1 s 0.2 s 0.3 s 0.4 s
Non-tripping time
Maximum break time
20 ms
80 ms
80 ms
140 ms
140 ms
200 ms
230 ms
320 ms
350 ms
500 ms
I Instantaneous
Pick-up (A)
accuracy ± 15%
I
i
= I
n
x
Rotary
Switch
60 A 1.5 2 .3 4 6 8 10 12 15
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 > Ii
G Ground-fault protection - for Micrologic 6 A or E Trip Units
Pick-up (A)
accuracy ± 10%
I
g
Keypad Setting
I
n
= 60 A I
g
= 0.3 0.35 0.4 0.45 0.5 0.55 0.6 0.65 0.7 0.75 0.8 0.85 0.9 0.95 1
I
n
= 100–600 A I
g
= 0.2 2.5 0.3 0.35 0.4 0.45 0.5 0.55 0.6 0.65 0.7 0.75 0.8 0.85 0.9 0.95 1
Time delay (s)
t
g
=
Keypad
setting
I
2
t Off 0 0.1 0.2 0.3 0.4
I
2
t On — 0.1 0.2 0.3 0.4
Non-tripping time
Maximum break time
20
80
80
140
140
200
230
320
350
500
Test I
g
function Built in
1
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.
2
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.