Siemens SENTRON 3VL System Manual page 175

Circuit breakers for motor protection with adjustable trip class ETU30M
Characteristic curve of circuit breakers for
motor protection with adjustable trip class
ETU30M
Table 12- 39 Circuit breakers for motor protection with adjustable trip class ETU30M
Circuit
breaker
VL160
VL250
VL400
VL630
3VL molded-case circuit breakers
System Manual, 03/2009, 110 0110 - 02 DS 01
Rated Max. rated power of the
current I motor at 50 Hz AC
n
[kW]
[A]
380 / 415 V
63 30
100 37. 45
160 55, 75
200 90, 110
250 132
315 160
315 200
500 250
These circuit breakers possess an
adjustable overload and short-circuit release
and an adjustable trip class.
They are current-limiting and have a phase
failure sensitivity feature
Adjustable range
of the overload
protection I
R
500 V
[A]
37 0.41-1.0 x I
55 0.41-1.0 x I
75, 90 0.41-1.0 x I
110, 132 0.41-1.0 x I
160 0.41-1.0 x I
200 0.41-1.0 x I
250 0.41-1.0 x I
355 0.41-1.0 x I
Technical data
12.10 Motor Protection
Adjustable Trip class
range of the TC
short-circuit
protection I
I
[s]
[A]
6/8/1 x I 10/20/30
n n
6/8/1 x I 10/20/30
n n
6/8/1 x I 10/20/30
n n
6/8/1 x I 10/20/30
n n
6/8/1 x I 10/20/30
n n
6/8/1 x I 10/20/30
n n
6/8/1 x I 10/20/30
n n
6/8/12.5 x I 10/20/30
n n
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