Functions
5.1 Protection against overload, phase failure, and phase asymmetry
SIRIUS Innovations - SIRIUS 3RU2 thermal overload relays / SIRIUS 3RB3 solid-state overload relays
42 Manual, 09/2014, A5E03656507420A/RS-AA/002
Figure 2
t [s] Tripping time
I [A] Current
Figure 5-3 2-pole load - 3RB30/3RB31
The figures are schematic representations of the characteristic curves. The characteristic
curves for the individual overload relays can be downloaded from the Internet
(http://www.siemens.com/automation/service&support).
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