Siemens SIRIUS 3RH Series, System Manual

Page: 284 / 786

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