User's Manual

Combination Starters & Starters for Group Installation
SIRIUS 3RA2 Motor Starters
General data
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SIRIUS Innovations Supplement 2011
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■ More information
Type 3RA2. 1 3RA2. 2
Size S00 S0
Number of poles
3 3
General data
Standards IEC 60947-1, EN 60947-1
IEC 60947-2, EN 60947-2
IEC 60947-4-1, EN 60947-4-1
Max. rated current I
n max
(= max. rated operational current I
e
) A 16 32
Permissible ambient temperature °C
-20 ... +60 for operation
°C
-55 ... +80 during storage/transport
Rated operational voltage U
e
V 690
Rated frequency Hz
50/60
Rated insulation voltage U
i
(pollution degree 3) V 690
Rated impulse withstand voltage U
imp
kV 6
Trip class (CLASS) Acc. to IEC 60947-4-1,
EN 60947-4-1
10
Rated short-circuit current I
q
at AC 50/60 Hz 400 V
acc. to IEC 60947-4-1, EN 60947-4-1
kA 153
Power loss P
v max
of all main
current paths
Dependent on the rated current
I
n
(upper setting range)
Up to 1.25 A W
2
--
1.6 ... 6.3 A W
2.3 --
8 ... 12 A W
3.5 --
16 A W
4.3 --
5 ... 6.3 A W
-- 2.3
8 ... 12 A W
-- 3.5
16 ... 32 A W
-- 4.3
Power consumption of the solenoid coils for contactors
as a function of the standard output
P of the motor
(when coil is cold and
U
s’
50 Hz)
• AC operation
- Closing Up to 4 kW VA 27 --
5.5 ... 7.5 kW VA
37 --
Up to 5.5 kW VA
-- 65
7.5 ... 15 kW VA
-- 77
P.f.
0.8 0.82
- Closed Up to 4 kW VA
4.2 --
5.5 ... 7.5 kW VA
5.7 --
Up to 5.5 kW VA
-- 8.5
7.5 ... 15 kW VA
-- 9.8
P.f.
0.25 0.25
• DC operation Closing =
Closed
W
4 5.9
Solenoid coil operating range for contactors
0.8 ... 1.1 x U
s
Lower limit at 55 °C 0.8 x U
s
--
At 60 °C
0.85 x U
s
--
Endurance of the motor starter protector
• Mechanical endurance Operating cycles 100000
• Electrical endurance Operating cycles
100000
• Max. switching frequency per hour (motor starts) 1/h
15
Endurance of contactor
• Mechanical endurance Operating cycles 30 million 10 million
• Electrical endurance Operating cycles
See endurance characteristic curves of the contactors -->
Chapter 3 "Controls – Contactors and Contactor Assemblies"
Shock resistance (sine-wave
pulse)
Acc. to IEC 60086 Part 2-27 g
Up to 6 Up to 6
Degree of protection Acc. to IEC 60947-1
IP20
Touch protection Acc. to EN 50274
Finger-safe
Phase failure sensitivity
of the motor starter protector
Acc. to IEC 60947-1,
EN 60947-1
Yes
Isolating features
of the motor starter protector
Acc. to IEC 60947-2,
EN 60947-2
Yes
Main control and EMER-
GENCY-STOP switch charac-
teristics of the motor starter
protector and accessories
Acc. to IEC 60204-1,
EN 60204-1
Yes
(with overvoltage releases of category "1" under conditions of proper use)
Protective separation between
main and auxiliary circuits
Acc. to EN 60947-1,
Appendix N
V
Up to 400
Mirror contacts for contactors
Yes Yes, from main contact to auxiliary
NC contact
© Siemens AG 2011