Nombre de contacts auxiliaires comme contact normalement ouvert
1
Nombre de contacts auxiliaires comme contact normalement fermé
1
Nombre de contacts auxiliaires comme contact inverseur
0
Tension nominale d'alimentation de commande Us à AC 50HZ
UN V
Tension nominale d'alimentation Us à AC 60HZ
UN V
Tension nominale d'alimentation de commande Us à DC
UN V
Plage de courant réglable
12.5-50 A
Entrée de la fonction de réinitialisation
No
Fonction de réarmement automatique
Yes
Fonction de réarmement par bouton-poussoir
-
Détails d’emballage
Niveau d’emballage 1
4047621011905
Description
Overload relay 12.5...50 A Electronic For motor protection Size S3, Class 20E Stand-alone installation Main circuit: Straight-through transformer Auxiliary circuit: Screw Manual-Automatic-Reset solid-state overload relay SIRIUS 3RB3 for inverse-time delayed protection of loads with normal and heavy starting against excessive temperature rises due to overload, phase unbalance or phase failure.
Due to the wide current setting ranges and various tripping characteristics, complete series of motors are covered with just a few types. With their low heat loss, they are particularly energy-efficient and help to reduce the temperature rise in the control cabinet. Worldwide approvals (e.g. IEC and UL/CSA) and applications in hazardous areas (ATEX) are a matter of course.
Can be supplied with different setting ranges of the overload release and with different trip classes. They are available with screw or spring-loaded terminals for fast, maintenance-free and vibration-proof connection, as well as for stand-alone installation.
The accessories consistently fit all sizes from S00 to S3.
Simple, efficient and always up to date - SIRIUS modular system.