Data Sheet

Number of NO contacts / for main contacts 2
Number of NC contacts / for main contacts 0
Operating voltage / at AC
● at 50 Hz / rated value
48...600V
● at 60 Hz / rated value
48...600V
Operating frequency / rated value 50...60Hz
Relative symmetrical tolerance / of the operating
frequency
10%
Operating range relative to the operating voltage / at
AC
● at 50 Hz
40...660V
● at 60 Hz
40...660V
Operating current / minimum 500mA
Operating current
● at AC-1 / at 400 V / rated value
40A
● at AC-51 / rated value
40A
Rate of voltage rise / at the thyristor / for main
contacts / maximum permissible
1000V/µs
Blocking voltage / at the thyristor / for main contacts /
maximum permissible
1600V
Reverse current / of the thyristor 10mA
Derating temperature 40°C
Surge current resistance / rated value 1150A
I2t value / maximum 6600A²·s
Control circuit/ Control
Type of voltage / of the control supply voltage AC
Control supply voltage / 1 / at AC
● at 50 Hz
180...230V
● at 60 Hz
180...230V
Control supply voltage frequency
● 1 / rated value
45Hz
● 2 / rated value
66Hz
Control supply voltage / at AC
● at 50 Hz / Full-scale value for signal<0>
recognition
40V
● at 60 Hz / Full-scale value for signal<0>
recognition
180V
Control supply voltage
● at AC / initial value for signal <1> detection
180V
Symmetrical line frequency tolerance 5Hz
Control current / at minimum control supply voltage
● at AC
2mA
Control current / at AC / rated value 15mA
3RF2440-1AB55 Subject to change without notice
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09/11/2019 © Copyright Siemens