SIRIUS 3RT2 contactors/contactor assemblies 
  2.8 Technical data 
SIRIUS Innovations 
System Manual, 01/2011, A8E56203870002-03 
261 
2.8.2.2  Main circuit - 3RT231. and 3RT232. (current carrying capacity for alternating current 
and direct current) 
Table 2- 97  Main circuit -  Current carrying capacity for alternating current (3RT231. and 3RT232. contactors) 
Type  3RT2316  3RT2317  3RT2325  3RT2326  3RT2327 
Size  S00  S0 
Main circuit - Current carrying capacity for alternating current 
Utilization category AC-1, switching resistive loads 
At 40 °C, 
up to 
690 V 
A  18  22  35  40  50 
  Rated operational currents I
e
 
At 60 °C, 
up to 
690 V 
A  16  20  30  35  42 
At 230 V  kW  6.5  7.5  11  13  16 
  Rated powers of three-phase 
current loads cos ϕ = 0.95 (at 
60 °C) 
400 V  kW  11  13  20  23  28 
At 40 °C  mm
2
  2.5  10 
  Minimum conductor cross-
section for loads with I
e
 
At 60 °C  mm
2
  2.5  10 
Utilization category AC-2 and AC-3 
  Rated operational currents 
I
e
(at 60 °C) 
At 60 °C, 
up to 
400 V 
A  9  12  17 
At 230 V  kW  3  4 
  Rated powers of slip-ring or 
squirrel-cage motors at 
50 Hz and at 60 Hz 
400 V  kW  4  5.5  7.5 
Table 2- 98  Main circuit -  Current carrying capacity for direct current (3RT231. and 3RT232. contactors) 
Type  3RT2316  3RT2317  3RT2325  3RT2326  3RT2327 
Size  S00  S0 
Main circuit - Current carrying capacity for direct current 
Utilization category DC-1, switching resistive loads (L/R ≤1 ms) 
  Rated operational currents I
e
(at 60 °C) 
 
Up to 24 V  A  16  20  30  35  42 
60 V  A  16  20  20 
110 V  A  2.1  4.5 
220 V  A  0.8  1 
  - 1 current 
path 
440 V  A  0.6  0.4 
Up to 24 V  A  16  20  30  35  42 
60 V  A  16  20  30  35  42 
110 V  A  12  30  35  42 
220 V  A  1.6  1 
  - 2 current 
paths in 
series 
440 V  A  0.8  1