Siemens SENTRON 3VL - Page 175

Technical data
12.10 Motor Protection
3VL molded-case circuit breakers
System Manual, 03/2009, 110 0110 - 02 DS 01
175
Circuit breakers for motor protection with adjustable trip class ETU30M
Characteristic curve of circuit breakers for
motor protection with adjustable trip class
ETU30M
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
Table 12- 39 Circuit breakers for motor protection with adjustable trip class ETU30M
Max. rated power of the
motor at 50 Hz AC
[kW]
Circuit
breaker
Rated
current I
n
[A]
380 / 415 V 500 V
Adjustable range
of the overload
protection I
R
[A]
Adjustable
range of the
short-circuit
protection I
I
[A]
Trip class
TC
[s]
63 30 37 0.41-1.0 x I
n
6/8/1 x I
n
10/20/30
100 37. 45 55 0.41-1.0 x I
n
6/8/1 x I
n
10/20/30
VL160
160 55, 75 75, 90 0.41-1.0 x I
n
6/8/1 x I
n
10/20/30
200 90, 110 110, 132 0.41-1.0 x I
n
6/8/1 x I
n
10/20/30 VL250
250 132 160 0.41-1.0 x I
n
6/8/1 x I
n
10/20/30
315 160 200 0.41-1.0 x I
n
6/8/1 x I
n
10/20/30 VL400
315 200 250 0.41-1.0 x I
n
6/8/1 x I
n
10/20/30
VL630 500 250 355 0.41-1.0 x I
n
6/8/12.5 x I
n
10/20/30