SIRIUS 3RA28 function modules for mounting on 3RT2 contactors 
  7.10 Technical data 
SIRIUS Innovations 
System Manual, 01/2011, A8E56203870002-03 
675 
7.10  Technical data 
Function modules for mounting on 3RT2 contactors 
 
3RA2811  3RA2812  3RA2813  3RA2814  3RA2815  3RA2816 Type 
Solid-state timing 
relay with 
semiconductor output
Solid-state time-delay 
auxiliary switches 
Star-delta (wye-delta) 
module kit 
Rated insulation voltage U
i 
Pollution degree 3 
Overvoltage category III 
V AC  300 
Rated impulse withstand voltage      
Operating range of excitation  0.85 to 1.1x Us 
0.95 to 1.05 times the rated frequency 
Rated power  W  1  1 
Power input at 230 V AC, 50 Hz  VA  1  2 
Rated operational current I
e
    
  AC-140 at 24 to 240 V, 50 Hz 
A  0.4  — 
  DC-13 at 24 to 240 V 
A  0.4  — 
  AC-15 at 24 to 250 V, 50 Hz 
A  —  3 
  DC-13 at 24 V 
A  —  1 
  DC-13 at 125 V 
A  —  0.2 
  DC-13 at 250 V 
A  —  0.1 
DIAZED fuse operating class gG  A  —  4 
Switching frequency under load       
  With I
e
 AC 230 V 
h
-1
  2500  — 
  With 3RT2 contactor; 230 V AC 
h
-1
  2500  — 
Recovery time  ms  50  150 
Minimum ON duration  ms  —  35  —  35  200  — 
Residual current  max.  mA  5  — 
Voltage drop when switched-
through 
max.  V  3.5  — 
Short-time loading capacity  up to 
10< ms 
A  10  — 
Setting accuracy 
in relation to full-scale value 
typ.  %  ±10 
Repeat accuracy  max.  %  ±1 
Mechanical durability (operating cycles)  100 x 10 
6
  10 x 10 
6