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5.2
Voltages and Currents
Voltages
Rated supply voltage for electronics and sensors (1L+)
Reverse polarity protection
Short-circuit protection
Rated load voltage (2L+) for contactor coil resp.
electronics and hand-held controller
Reverse polarity protection
Short-circuit protection
Braking voltage
•
EM 300 DS/RS
•
EM 300 EDS/ERS
Reverse polarity protection
Short-circuit protection
Safe isolation between main circuit and auxiliary
circuit to DIN VDE 0106, Part 101/Part 101 A1
Currents
Aggregate current of motor starters
•
at 55 °C
– with 2.5 mm
– with 4.0 mm
•
at 40 °C
– with 2.5 mm
– with 4.0 mm
Power input
•
from supply voltage 1L+
•
from load voltage 2L+ (without hand-held con-
troller)
Minimum tripping current if a phase fails
(= 100% current unbalance)
Main circuit
Rated operating voltage U
•
to IEC 60947-1, EN 60947-1
•
to CSA and UL
Rated insulation voltage U
Rated impulse strength U
•
EM 300 DS/RS
•
EM 300 EDS/ERS
Rated frequency
SIMATIC - EM 300 Motor Starters
GWA-4NEB 640070302-05
2
connection
2
connection
2
connection
2
connection
e
i
imp
Technical Specifications
24 V DC
yes
yes
24 V DC
no
yes
24 V DC resp. 500 V DC
24 V DC, 400 V AC, 500 V DC
yes
yes
400 V
20 A
30 A
25 A
35 A
typ. 70 mA
typ. 170 mA
0.85 x I
e
500 V AC; tolerance range to
575 V AC
up to 600 V AC
690 V AC
6 kV
2.5 kV
50/60 Hz
5-3
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