SIRIUS 3RT2 contactors/contactor assemblies   
2.8 Technical data 
  SIRIUS Innovations 
284  System Manual, 01/2011, A8E56203870002-03 
2.8.5.4  General data - Mechanical latch 3RT2926-3A 
Table 2- 122  General data 3RT2926-3A 
Contactor  Type  3RT2926-3A 
Size  Mechanical latch for 3RT2.2 contactors 
General data 
Rated insulation voltage U
i
 (pollution degree 3)  V  690 
Mechanical durability 
(operating cycles) 
With 3RT2.2  Operati
ng 
cycles 
3 million 
Permissible ambient temperature 
  Operation 
°C  -25 … + 60 
  Storage 
°C  -50 … + 80 
Degree of protection to EN 60947-1, Annex C  IP20 
Magnet coil operating range 
at AC 50/60 Hz and DC 
0.85 to 1.1 x U
S
 
Release solenoid magnet coil power input (for cold 
coil and 1.0 x U
S
) 
AC and DC operation 
W  Approx. 4 
Command duration for de-energizing  
  AC operation 
ms  18 ... 31 
  DC operation 
ms  18 ... 26 
Conductor cross-sections 
mm2  2 x (0.5 to 2.5); 1 x 4 
  Solid 
AWG  2 x 14; 1 x 12 
mm2  2 x (0.5 to 2.5); 1 x 2.5 
  Finely stranded with end sleeve 
AWG  2 x 14; 1 x 12 
Nm  0.8 to 1.1 Tightening torque of connection screws 
lb.in  7 to 9.5