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19/58 Circuit-breakers, fuses
Tripping characteristics for miniature circuit-breakers
2010 CA08103002Z-EN
www.eaton.comTrippingcharacteristics forminiaturecircuit-breakers
Combination switches
PKNM...
mRB6..., mRB4...
Tripping characteristics at 30 °C:
Tripping characteristics
B, C according to IEC/EN 61009
B, C, D according to IEC/EN 61009
Miniature circuit-breakers (MCB)
FAZ-...-NA, FAZ-...-RT
Tripping characteristics according to UL 489
0.0005
1
2
3 4 5 6 7 8 9 10 15 20 30 40 50
0.001
0.002
0.005
0.01
0.02
0.05
0.1
0.2
0.5
10
30
60
120
300
600
1200
3600
7200
1.13
1.45
1
2
5
t [s]
B
C
Specified
non-tripping current
I
nt
= 1.13 x I
n
for t > 1 h
Specified
tripping current
I
t
= 1.45 x I
n
for t x 1 h
x Rated operational current
B
C
e g
h
0.0005
1
2
3 4 5 6 7 8 9 10 15 20 30 40 50
0.001
0.002
0.005
0.01
0.02
0.05
0.
1
0.
2
0.
5
10
t [s]
30
60
120
300
600
1200
3600
7200
D
1
2
5
d
i
c
c
b
f
a
I/I n
a
Specified non-tripping current
I
nt
= 1.13 x I
n
: t > 1 h
b
Specified tripping current
I
t
= 1.45 x I
n
: t < 1 h
c
2.55 x I
n
: t = 1 – 60 s (I
n
< 32 A)
t = 1 – 120 s (I
n
> 32 A)
d
Part No B: 3 x I
n
: t > 0.1 s
e
5 x I
n
: t < 0.1 s
f
Part No C: 5 x I
n
: t > 0.1 s
g
10 x I
n
: t < 0.1 s
h
Part No D: 10 x I
n
: t > 0.1 s
i
20 x I
n
: t < 0.1 s
d
e
0.0005
1
2
3 4 5 6 7 8 9 10 15 20 30 40 50
0.001
0.002
0.005
0.01
0.02
0.05
0.1
0.2
0.5
10
t [s]
30
60
120
300
600
1200
3600
7200
D
C
1
2
5
e
c
a
c
b
d
a
Specified non-tripping current
I
nt
= 1.0 x I
n
(T = 40 °C)
b
Specified tripping current
I
t
= 1.35 x I
n
: t < 1 h (T = 25 °C)
c
2.0 x I
n
: t = 12 – 120 s (T = 25 °C)
Fast tripping to IEC 60898-1
d
Part No C: 5 x I
n
: t > 0.1 s
10 x I
n
: t < 0.1 s
e
Part No D: 10 x I
n
: t > 0.1 s
20 x I
n
: t < 0.1 s
I/I n
PKNM, mRB, FAZ-NA, FAZ-RT