Siemens SIRIUS Overload Relays

Siemens SIRIUS Overload Relays

If overload, phase imbalance or phase failure occur in the main circuit, then it doesn’t look good for the connected load – that is if you are not reliably protected. With SIRIUS overload relays.

3RU11 thermal overload relays up to 100 A with tripping CLASS 10

3RB20 solid-state overload relays up to 630 A with tripping CLASS 10 or CLASS 20

3RB21 solid-state overload relays up to 630 A where tripping CLASSES 5 to 30 can be set and a ground fault detection function that can be enabled

3RB22 solid-state overload relays up to 630 A where tripping CLASSES 5 to 30 can be set, a ground fault detection function can be enabled, a PTC sensor can be connected as well as monostable auxiliary contacts

3RB23 solid-state overload relays up to 630 A where tripping CLASSES 5 to 30 can be set, a ground fault detection functioncan be enabled, a PTC sensor can be connected and bistable auxiliary contacts

The overload relays are certified according to ATEX and thus suitable for motors with "increased safety" type of protection EEx e.

 

For further information fell free to contact us:

Tel    : 03-89616713

Email: elecont@streamyx.com