Datasheet

● at AC-21 A / at 500 V / maximum
400A
● at AC-21 A / at 690 V / maximum
400A
● at AC-23 A / at 500 V / at 50/60 Hz / rated value
/ maximum
400A
● at AC-22 A / at 500 V / at 50/60 Hz / rated value
/ maximum
400A
● at AC-22 A / at 400 V / at 50/60 Hz / rated value
/ maximum
400A
● at AC-22 A / at 690 V / at 50/60 Hz / rated value
/ maximum
400A
● at AC-23 A / at 400 V / at 50/60 Hz / rated value
/ maximum
400A
● at AC-23 A / at 690 V / at 50/60 Hz / rated value
/ maximum
400A
● at DC-23 A / at 440 V / rated value / maximum
400A
● at DC-23 A / at 220 V / rated value / maximum
400A
● at DC-22 A / at 440 V / rated value / maximum
400A
● at DC-22 A / at 220 V / rated value / maximum
400A
● at DC-21 A / at 440 V / rated value / maximum
400A
● at DC-21 A / at 220 V / maximum
400A
Continuous current
● rated value
400A
● at 40 °C / rated value
400A
● at 45 °C / rated value
350A
● at 50 °C / rated value
315A
● at 55 °C / rated value
315A
● at 60 °C / rated value
315A
● at 65 °C / rated value
280A
● at 70 °C / rated value
280A
Continuous current / at DC / rated value 400A
Let-through current / of the fuse / at 500 V /
maximum permissible
37100A
Let-through current / of the gG fuse / at 690 V /
maximum permissible
47000A
Let-through current / of the aM fuse / at 690 V /
maximum permissible
47000A
Let-through current / with closed switch
● at 690 V / for combination switch + aM fuse /
maximum permissible
41140A
● at 690 V / for combination switch + gG fuse /
maximum permissible
41140A
● for combination switch + fuse / at 400 V /
maximum permissible
39400A
3KF4440-0LF11 Subject to change without notice
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03/08/2019 © Copyright Siemens