User Manual

Description
2.3 Protection system
3WA Air Circuit Breakers
Equipment Manual, 05/2021, 92310000002-03
61
Characteristic
The characteristic is determined by the short-time-delayed tripping currents Isd FW (forward
direction) and I
sd REV (reverse direction) and the adjustable tripping time tsd FW and tsd REV.
Forward
Reverse