Siemens SIRIUS 3RF Series

SIRIUS 3RT2 contactors/contactor assemblies
2.8 Technical data
SIRIUS Innovations
System Manual, 01/2011, A8E56203870002-03
247
Type 3RT202.-.NB3 3RT202.-.NF3 3RT202.-.NP3
Size S0
Actuation
Switching times at 0.8 to 1.1 x U
S
1)
Total break time = opening delay + arcing time
 AC operation
- Closing delay ms 60 ... 80 50 ... 70 60 ... 80
- Opening delay ms 30 ... 45 35 ... 45 35 ... 50
 DC operation
- Closing delay ms 60 ... 75 50 ... 70 50 ... 75
- Opening delay ms 30 ... 45 35 ... 45 40 ... 50
 Arcing time
ms 10
Switching times at 1.0 x U
s
1)
 AC operation
- Closing delay ms 65 ... 80 50 ... 70 60 ... 80
- Opening delay ms 30 ... 45 35 ... 45 30 ... 50
 DC operation
- Closing delay ms 60 ... 80 56 ... 70 60 ... 80
- Opening delay ms 30 ... 45 35 ... 45 30 ... 50
1)
The OFF-delay times of the NO contacts and the ON-delay times of the NC contacts increase if the contactor coils are
attenuated against voltage peaks (varistor + 2 ms to 5 ms, diode combination: 2x to 6x).