Siemens Motor Protection Circuit Breaker Selection Guide

System pro m compact circuit breakers offer up to five trip curves.

Siemens motor protection circuit breaker selection guide.

Siemens provides different types of residential circuit breakers based on our customers needs and the requirements of. This type of the wl low voltage insulated case circuit breakers are generally intended to provide service entrance feeder and branch circuit protection in accordance with ul csa 489. Equipment protection critical equipment is protected via fuse or circuit breaker plugs. Motor starter protectors for motor protection 3vs13.

Sirius 3rv2 motor starter protectors reliably intervene in three different cases. Therefore in order to control the motor speed it is necessary to control the frequency of the supply. Manufacturing tolerance of the short circuit tripping function allows a miniature circuit breaker to be selected according to the application. When selecting a trip curve for the application load type and inrush current are driving factors in the selection process.

Position of the circuit breaker or the position of the with drawable part can be integrated in the switchgear interlock ing concept in order to exclude impermissible switching sequences. Space space in critical power data center facilities is at a premium. Standard for safety for molded case circuit breakers molded case switches and circuit breaker enclosures. The 3vs13 3vs16 motor starter protectors are suitable for use in any climate.

Due to their proximity the plugs provide a localized method of protection and disconnection. The breaker will turn off to interrupt current flow after a fault is detected. If the frequency is reduced the voltage must be reduced or the magnetic flux will be too high and the motor will saturate. Siemens industry catalog automation technology industrial controls protection equipment motor starter protectors circuit breakers.

6 52 a the characteristic curves of these motor starter protectors are specially laid out for the overload and short circuit protection of motors. In the event of a short circuit current 13 times the rated current the short circuit releases isolate the faulty load feeder from the power supply within only a few milliseconds. 0 4 25 a 3vs16. Low voltage interface the removable cover of the sion 3ae1 and 3ae5 vacuum circuit breakers enables easy access to the low voltage inter face.

Hence the speed of the motor depends on the applied frequency as well as the winding arrangement and a little on the load.