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MCBs technical details
Tripping characteristics

Tripping characteristics S 200 / S 200 M / S 200 P / S 200 S / S 200 MUC / SN 201 L / SN 201 / SN 201 M
AC DC
100 Hz 200 Hz 400 Hz
Multiplier 1.1 1.2 1.5 1.5
The thermal tripping performance is independent from the network frequency

Tripping characteristics SU200 M
1)
Acc. to Tripping Rated current Thermal release Electromagnetic release 2)
characteristics
Currents: Tripping time Range of instantaneous tripping Tripping
conventional conventional time
non-tripping tripping
current current
In I1 I2
UL 489 C 0.5 to 63 A 1.03 · I n > 1 h 5 · I n > 0.2 s
1.25 · I < 1 h 3) 10 · I < 0.2 s
n n
K 0.2 to 63 A 1.03 · I n > 1 h 10 · I n > 0.2 s
1.25 · I < 1 h 3) 14 · I < 0.2 s
n n
Z 0.5 to 63 A 1.03 · I > 1 h 2 · I > 0.2 s
n n
1.25 · I n < 1 h 3) 3 · I n < 0.2 s
1) The thermal releases are calibrated to a nominal reference ambient temperature e.g. for UL 489 of 40°C.
In the case of higher ambient temperatures, the current values fall by approx. 4 % for each 10 K temperature rise.
2) The indicated tripping values of electromagnetic tripping devices apply to a frequency of 50/60 Hz. The thermal release operates independent of frequency.
3) As from operating temperature (after I1 > 1h)

Tripping characteristics S200 80-100A
Acc. to Tripping Rated current Thermal release Electromagnetic release 2)
1)
characteristics
Currents: Tripping time Range of instantaneous Tripping time
tripping
conventional conventional
non-tripping tripping
current current
I n I1 I2
IEC/EN 60898-1 B 80 up to 100 A 1.13 · I n > 2 h 3 · I n 0.1 ... 90 s
1.45 · I < 2 h 5 · I < 0.1 s
n n
C 80 up to 100 A 1.13 · I n > 2 h 5 · I n 0.1 ... 30 s
1.45 · I < 2 h 10 · I < 0.1 s
n n
1) The thermal releases are calibrated to a nominal reference ambient temperature; for B and C the reference value is 30 °C.
In the case of higher ambient temperatures, the current values fall by approx. 6 % for each 10 K temperature rise.
2) The indicated tripping values of electromagnetic tripping devices apply to a frequency of 50/60 Hz. The thermal release operates independent of frequency.

Tripping characteristics S 750 DR
Tripping Reference Delayed overload tripping Short-time delayed selective tripping
characteristic ambient Conventional Conventional Tripping time Delayed Short-time Tripping time
temperature
non- tripping tripping delayed
tripping current current current tripping current
T 1)
ref
I nt I t t I tv I tk t
E 30 °C 1.05 x l ≥ 2 h 5 x l 0.05 s < t < 5 s (l ≤ 32 A)
selective n n n
0.05 s < t < 10 s (l > 32 A)
n
1.2 x l n < 2 h 6.25 x l n 0.01 s < t < 0.3 s
K selective 30 °C 1.05 x l n ≥ 2 h 8 x l n 0.05 s < t < 10 s
1.2 x l < 2 h 12 x l 0.01 s < t < 0.3 s
n n
1) Reference ambient temperature 30 °C (in the case of higher ambient temperatures, the current values are reduced by ca. 5 % per each 10 K)