Data Sheet

● I2t value / with closed switch / at 690 V / for
combination switch + gG fuse / maximum
178300A²·s
● I2t value / with closed switch / at 690 V / for
combination switch + aM fuse / maximum
201200A²·s
● I2t value / of the fuse / at 500 V / maximum
permissible
223005A²·s
● I2t value / of the gG fuse / at 690 V / maximum
permissible
226005A²·s
circuit-breaker / Design 3KD3
Mechanical service life (switching cycles) / typical 15000
Position / of the switch operating mechanism at the left end
Overvoltage category III
Voltage
Operating voltage / with current paths in series
● with degree of pollution 2 / at DC / rated value
440 V / 3
● with degree of pollution 3 / at DC / rated value
440 / 3
Insulation voltage
● rated value
1000V
Surge voltage resistance / rated value 8kV
Overvoltage in percent / relative to the operating
voltage / at AC / at 50/60 Hz
10%
Current / at AC / rated value 160A
Operating voltage
● at AC / at 50/60 Hz / rated value
690V
Protection class
Protection class IP IP00
Protection class IP
● with closed switch / with cover or cable lug
cover
IP20
● on the front
IP00
Dissipation
Power loss [W]
● with conventional rated thermal current / per
pole
4.6W
● with conventional rated thermal current / per
device
18.4W
● for rated value of the current / at AC / in hot
operating state / per pole
4.6W
Current
Operating current
● at AC-21 A / at 400 V / maximum
160A
● at AC-21 A / at 500 V / maximum
160A
3KD3442-0NE10-0 Subject to change without notice
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09/13/2019 © Copyright Siemens