Technical data   
11.7 Motor Protection 
  3VL IEC molded case circuit breakers 
154  System Manual, 11/2013, 110 0110 - 02 DS 03 
Molded case circuit breakers for motor protection with adjustable trip class ETU30M 
 
 
Molded case circuit breaker characteristic 
curve for motor protection with 
adjustable trip class ETU30M 
These molded case circuit breakers possess 
an adjustable overload and short
-circuit 
release and an adjustable trip class. 
 
hey are current-limiting and have a phase 
failure sensitivity feature Communication via 
PROFIBUS
 DP and Modbus RTU is possible. 
 
Table 11- 30  Molded case circuit breakers for motor protection with adjustable trip class ETU30M 
Molded 
case 
circuit 
breaker 
Max. rated power of the 
motor at 50 Hz AC 
Adjustable range 
of the overload 
protection I
R
 
Adjustable 
range of the 
short-circuit 
protection I
I
 
VL160 
n
n
VL250 
n
n
VL400 
n
n
n
n