Siemens SENTRON 3VL series, Системное руководство

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Technical data
12.10 Motor Protection
3VL molded-case circuit breakers
174
System Manual, 03/2009, 110 0110 - 02 DS 01
12.10 Motor Protection
The following characteristic values in the relevant tables apply for the SENTRON VL circuit breakers
in motor protection with different trip classes:
● Trip class ETU10M fixed
● Trip class ETU30M adjustable
● Trip class ETU40M adjustable
Circuit breakers for motor protection with fixed trip class ETU10M
L
I
Characteristic value of circuit breakers for
motor protection with fixed trip class
ETU10M
These circuit breakers possess an
adjustable overload and short-circuit release
and a fixed trip class.
They are current-limiting and have a phase
failure sensitivity feature
Table 12- 38 Circuit breakers for motor protection with fixed trip class ETU 10M
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
1.25-11 x I
n
10
100 37. 45 55 0.41-1.0 x I
n
1.25-11 x I
n
10
VL160
160 55. 75 75. 90 0.41-1.0 x I
n
1.25-11 x I
n
10
200 90, 110 110, 132 0.41-1.0 x I
n
1.25-11 x I
n
10 VL250
250 132 160 0.41-1.0 x I
n
1.25-11 x I
n
10
315 160 200 0.41-1.0 x I
n
1.25-11 x I
n
10 VL400
315 200 250 0.41-1.0 x I
n
1.25-11 x I
n
10
VL630 500 250 355 0.41-1.0 x I
n
1. 5-12.5 x I
n
10