Siemens SIMOCODE pro System Manual page 170

Motor management and control devices

Hide thumbs Also See for SIMOCODE pro:

Table of Contents

Motor protection

The class (trip class) indicates the maximum tripping time within which

SIMOCODE pro must trip cold at 7.2 times the set current I

protection according to IEC 60947). With regard to tripping time precision,

SIMOCODE pro fulfills the extended requirements of tolerance band E

according to IEC/EN 60947-4-1. Please take into account that with start-ups

> "Class 10", the admissible AC3 current of the contactor may have to be

reduced (derating), i.e. a larger contactor selected.

The following figure shows trip classes 5, 10, 15, 20, 25, 30, 35 and 40 for 3-

pole symmetrical loads:

Fig. 3-2: Trip classes for 3-pole symmetrical loads

SIMOCODE pro

GWA 4NEB 631 6050-22 DS 03