Siemens SIRIUS 3RT Series System Manual page 617

Type
Size
Number of poles
General data
Magnet coil power input for contactors
With cold coil and U 50 Hz
s'
AC operation

DC operation

Dependent on the rated motor power P of the motor
Up to 4 kW

5.5 kW to 7.5 kW

Up to 5.5 kW

7.5 kW to 15 kW

Magnet coil operating range for contactors
Motor starter protector durability
Mechanical durability

Electrical durability

Maximum switching frequency per hour (motor starts)

Contactor durability
Mechanical durability

Electrical durability

SIRIUS Innovations
System Manual, 01/2011, A8E56203870002-03
Switch-on power
cos φ
Holding power
cos φ
Switch-on power = holding
power
Switch-on power
cos φ
Holding power
cos φ
Switch-on power
cos φ
Holding power
cos φ
Switch-on power
cos φ
Holding power
cos φ
Switch-on power
cos φ
Holding power
cos φ
Lower limit at 55 °C
At 60°C
Operating cycles
Operating cycles
Operating cycles
Operating cycles
3RA2.1
S00
3
3RT2015 ... 3RT2017 ...
16 18
VA 27 / 24.3 37 / 33
0.8 / 0.75
VA 4.2 / 3.3 5.7 / 4.4
0.25 0.28
W 4
VA 27
0.8
VA 4.2
0.25
VA 37
0.8
VA 5.7
0.25
VA ---
---
VA ---
---
VA ---
---
VA ---
---
0.8 to 1.1 x U
s
0.8 x U
s
0.85 x U
s
100000
100000
1/h 15
30 million
See the durability characteristic curves for the
contactors (technical data in chapter titled "Contactors
and contactor assemblies").
SIRIUS 3RA21/22 load feeders
6.10 Technical data
3RA2.2
S0
3
3RT2024 3RT2026 ...
3RT2028
65 77
0.82
8.5 9.8
0.25 0.27
5.9
---
---
---
---
---
---
---
---
65
0.82
8.5
0.25
77
0.82
9.8
0.25
---
---
10 million
617