SIRIUS 3RT2 contactors/contactor assemblies
2.8 Technical data
SIRIUS Innovations
264 System Manual, 01/2011, A8E56203870002-03
Table 2- 101 Actuation of 3RT251. and 3RT252. contactors
Type 3RT2516 3RT2517 3RT2518 3RT2526
Size S00 S0
Actuation
Magnet coil operating range See 3RT2316 See 3RT2317 See 3RT2326
Magnet coil power input (for cold coil and 1.0 x U
S
) See 3RT2316 See 3RT2317 See 3RT2326
Switching times at 0.8 to 1.1 x U
S
Total break time = opening delay + arcing time
See 3RT2316 See 3RT2317 See 3RT2326
2.8.2.4 Main circuit - 3RT251. and 3RT252. (current carrying capacity for alternating current
and direct current)
Table 2- 102 Main circuit - Current carrying capacity for alternating current (3RT251. and 3RT252. contactors)
Type 3RT2516 3RT2517 3RT2518 3RT2526
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 22 40
Rated operational currents I
e
At 60 °C up to 690 V A 16 20 20 20
At 230 V kW 6.5 7.5 7.5 15
Rated powers of three-phase
current loads cos ϕ = 0.95 (at
60 °C)
400 V kW 11 13 13 26
Minimum conductor cross-
section for loads with I
e
At 40 °C mm
2
2.5 2.5 2.5 10
Utilization category AC-2 and AC-3
1)
Rated operational currents
I
e
(at 60 °C)
Up to 400 V A 9 13 / 9 16 / 9 25
At 230 V kW 3 3 / 2.2 4 / 2.2 5.5
Rated powers of slip-ring or
squirrel-cage motors at
50 Hz and at 60 Hz
400 V kW 4 5.5 / 4 7.5 / 4 11
1)
The values after the slash apply for the NC contact.
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