Operation
9.2 Setting the tripping class/ground-fault detection (3RB31)
SIRIUS Innovations - SIRIUS 3RU2 thermal overload relays / SIRIUS 3RB3 solid-state overload relays
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Manual, 09/2014, A5E03656507420A/RS-AA/002
9.2
Setting the tripping class/ground-fault detection (3RB31)
Key statement
In the case of 3RB31 solid-state overload relays, it is also possible to select the tripping
class (CLASS 5E, 10E, 20E or 30E) via a second rotary knob using a screwdriver and
activate or deactivate internal ground-fault monitoring.
There are 8 possible settings:
●
CLASS 5E, 10E, 20E and 30E without ground-fault detection (STANDARD)
●
CLASS 5E, 10E, 20E and 30E without ground-fault detection (Gnd-FAULT)
