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Description
2.2 Electronic components
NOTICE
To protect the electrostatically-sensitive devices, the enclosed protective cap must be placed
on the test socket.
Before the protective cap is removed, the breakers must be connected to ground, and the
operators must have the same potential.
Protection functions
• LT: Overload protection (Long time), L-tripping (Page 50)
• ST: Short-time delay short-circuit release (Short time), S tripping (Page 51)
• INST: Instantaneous short-circuit release (Instantaneous), I-tripping (Page 51)
Characteristic curves
The diagram below only shows the setting ranges of the different parameters. Tolerance
ranges are not taken into account here.
L, S, I tripping operation
42
Operating Instructions, 12/2022, L1V30828903001-01
3WJ Air Circuit breakers
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