SIRIUS 3RT2 contactors/contactor assemblies
2.8 Technical data
SIRIUS Innovations
276 System Manual, 01/2011, A8E56203870002-03
Type 3RH2.
Size S00
Actuation
DC operation
Switching on
0.8 ... 1.1 x U
S
ms 30 ... 100
1.0 x U
S
ms 20 ... 50
- ON-delay NO contact
Minimum operating time 3RH24 ms ≥ 100
0.8 ... 1.1 x U
S
ms 25 ... 90
- OFF-delay NC
contact
1.0 x U
S
ms 30 ... 45
Switching off
0.8 ... 1.1 x U
S
ms 7 ... 13
1.0 x U
S
ms 7 ... 12
- OFF-delay NO
contact
Minimum operating time 3RH24 ms ≥ 30
0.8 ... 1.1 x U
S
ms 13 ... 19
- ON-delay NC contact
1.0 x U
S
ms 13 ... 18
Arcing time ms 10 ... 15
Dependency of switching frequency z’on operational current I’ and
operational voltage U’
z’ = z ⋅ I
e
/I’ ⋅ (U
e
/U’)1.5 ⋅ 1/h
1)
The use of the additional load module 3RT2916-1GA00 is recommended at higher residual currents.
2)
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 (suppression diode 6x to 10x; diode combination 2x to 6x; varistor +2 to 5 ms).
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