Stahl 8527/2, Operating Instructions Manual

Page: 42 / 52

Tripping Characteristic Curves
16 8527602300
S-BA-8527/2-01-en-10/10/2007
Circuit breakers for motor protection
8527/2
14 Tripping Characteristic Curves
The tripping characteristic curves refer to a 3-pole load from cold state at an ambient
temperature of + 20 °C and any position.
The deviation of the tripping time (from a current three times higher than the rated current)
is max. 20 % according to EN 60079-14.
The following tripping characteristic curves show the tripping time depending on the
current ratio l
a
/I
e
.
Legend:
1) Multiples of the rated current
2) Tripping time
3) 2-pole
4) 3-pole
5) Electromagnetic release
05930E00