MIL-PRF-55629/21G
TABLE II. Circuit breaker dash numbers and applicable characteristics (configuration 2).
Current rating
Voltage
Resistance
Current rating
Voltage
Resistance
Amperes
Code
frequency
or
Amperes
Code
frequency
or
letter
and
impedance
letter
and
impedance
tripping
ohms (max)
tripping
ohms (max)
time delay
time delay
code letter
code letter
from table II
from table II
0.1
A
4.0
K
K or L
186 at dc
K or L
0.113 at dc
0.1
A
4.0
K
M or N
142 at 60 Hz
M or N
0.1 at 60 Hz
0.1
A
4.0
K
P, R, or S
350 at 400 Hz
P, R, or S
0.3 at 400 Hz
0.250
B
5.0
L
K or L
26.4 at dc
K or L
0.08 at dc
0.250
B
5.0
L
M or N
26.4 at 60 Hz
M or N
0.08 at 60 Hz
0.250
B
5.0
L
P, R, or S
60 at 400 Hz
P, R, or S
0.175 at 400 Hz
0.35
C
7.5
M
K or L
13.2 at dc
K or L
0.035 at dc
0.35
C
7.5
M
M or N
13.2 at 60 Hz
M or N
0.035 at 60 Hz
0.35
C
7.5
M
P, R, or S
30 at 400 Hz
P, R, or S
0.11 at 400 Hz
0.5
D
10.0
N
K or L
6 at dc
K or L
0.02 at dc
0.5
D
10.0
N
M or N
6.36 at 60 Hz
M or N
0.02 at 60 Hz
0.5
D
10.0
N
P, R, or S
12 at 400 Hz
P, R, or S
0.04 at 400 Hz
0.75
E
12.5
P
K or L
3 at dc
K or L
0.016 at dc
0.015 at 60 Hz
0.75
E
12.5
P
M or N
3 at 60 Hz
M or N
0.03 at 400 Hz
0.75
E
12.5
P
P, R, or S
7 at 400 Hz
P, R, or S
0.012 at dc
1.0
F
15.0
R
K or L
2 at dc
K or L
0.011 at 60 Hz
1.0
F
15.0
R
M or N
2 at 60 Hz
M or N
0.02 at 400 Hz
1.0
F
15.0
R
P, R, or S
4 at 400 Hz
P, R, or S
0.007 at dc
1.75
20.0
G
K or L
0.9 at dc
S
K or L
0.007 at 60 Hz
1.75
20.0
G
M or N
0.9 at 60 Hz
S
M or N
0.01 at 400 Hz
1.75
2 at 400 Hz
20.0
G
P, R, or S
S
P, R, or S
0.006 at dc
2.5
0.35 at dc
25.0
H
K or L
T
K or L
0.006 at 60 Hz
2.5
0.35 at 60 Hz
25.0
H
M or N
T
M or N
0.009 at 400 Hz
2.5
0.7 at 400 Hz
25.0
H
P, R, or S
T
P, R, or S
0.005 at dc
3.0
0.3 at dc
30.0
J
K or L
U
K or L
0.005 at 60 Hz
3.0
0.3 at 60 Hz
30.0
J
M or N
U
M or N
0.006 at 400 Hz
3.0
0.5 at 400 Hz
30.0
J
P, R, or S
U
P, R, or S
8
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