Technical data

92
Protective Devices
Tripping Characteristics (IEC/EN 60898-1)
Quick-acting (B), slow (C), very slow (D)
Tripping characteristic B Tripping characteristic C
Tripping characteristic D
Effect of the Ambient Temperature on Thermal Tripping
Behaviour
Adjusted rated current values according to the ambient temperature
Effect of Power Frequency
Effect of power frequency on the tripping behaviour I
MA
of the quick release
Power frequency f [Hz]
16
2
/
3
50 60 100 200 300 400
I
MA
(f)/I
MA
(50Hz) [%] 91 100 101 106 115 134 141
Load Capacity of Series Connected Miniature Circuit
Breakers
TRIPPING CURRENT
TRIPPING TIME
Seconds
Minutes
TRIPPING CURRENT
TRIPPING TIME
Seconds
Minutes
Ambient temperature T [°C]
Number of devices (n) 1-pole
Load capacity factor K
N
TRIPPING CURRENT
TRIPPING TIME
Seconds
Minutes