Semiconductor soft starter 3RW3 8.4 Accessories The following accessories are available for the soft starter 3RW3: Tabelle 8-15: Accessories, 3RW30/31 Fan cycling The fan is cycled by the control electronics of the soft starter. It runs with the following conditions: Start of working: ca. 0.5 sec. after the switching of the internal bypass- contacts ("motor-run-up"-signal) End of working: ca. 0.5 h after switching off the soft starter Fan installation The fan is snapped into the recess provided on the underside of the soft starter and the plug-in cable is plugged into the appropriate plug. The instal- lation direction is marked by an arrow on the fan.
No additional parameterization is necessary. Thanks to these fan modules, the starter can be installed in any position. Exception: the fan cannot blow from top to bottom opposite the convection direction. Rev. 08/99 8-33 Description Order No. Fan for 3RW3.2.. 3RW3926-8A Fan for 3RW303.. and 3RW304.. 3RW3936-8A Terminal covers for frame covers 3RW303.. 3RT1936-4EA2 Terminal covers for frame covers 3RW304.. 3RT1946-4EA2 Conne tion cover for rail connection 3RW304.. 3RT1946-4EA1 Connection modules for combination with circuit-breakers 3RV1 3RA19.1-1A (sizes S00 to S3) RE element for cycling from PLC 3TX7462-3T