SIRIUS 3RT2 contactors/contactor assemblies 
  2.8 Technical data 
SIRIUS Innovations 
System Manual, 01/2011, A8E56203870002-03 
275 
2.8.4.4  Actuation - 3RH2. contactor relays 
Table 2- 117  Actuation - 3RH2. contactor relays 
Type  3RH2. 
Size  S00 
Actuation 
Magnet coil operating range 
At 50 Hz  0.8 to 1.1 x U
S
 AC operation 
At 60 Hz  0.85 to 1.1 x U
S
 
At + 50 °C  0.8 to 1.1 x U
S
 DC operation 
At + 60 °C  0.85 to 1.1 x U
S
 
Magnet coil power input (for cold coil and 1.0 x U
S
) 
  AC operation, 50 Hz, standard version 
- Switch-on power  VA/cos ϕ  37 / 0.8  
- Holding power  VA/cos ϕ  5.7 / 0.25 
  AC operation, 60 Hz 
- Switch-on power  VA/cos ϕ  33 / 0.75  
- Holding power  VA/cos ϕ  44 / 0.25 
  DC operation 
  - Switch-on power = holding power  W  4.0 
Permissible residual current of electronics (with 0 signal) 
  AC operation
1)
 
mA  < 4 mA (230 V/U
S
) 
  DC operation 
mA  < 10 mA (24 V/U
S
) 
Switching times
2)
 
Total break time = opening delay + arcing time 
AC operation  Values apply with coil in cold state and 
at operating temperature for operating 
range 
 
  Switching on 
  
0.8 ... 1.1 x U
S
  ms  8 ... 33 
1.0 x U
S
  ms  9 ... 22 
- ON-delay NO contact 
Minimum operating time 3RH24  ms  ≥ 35 
0.8 ... 1.1 x U
S
  ms  6 ... 25 
 
- OFF-delay NC contact 
1.0 x U
S
  ms  6.5 ... 19 
  Switching off 
0.8 ... 1.1 x U
S
  ms  4 ... 15 
1.0 x U
S
  ms  4.5 ... 15 
- OFF-delay NO contact 
Minimum operating time 3RH24  ms  ≥ 30 
0.8 ... 1.1 x U
S
  ms  5 ... 15 
 
- ON-delay NC contact 
1.0 x U
S
  ms  5 ... 15