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5.4
Specifications of Motor Starters EM 300 DS/RS
Circuit-breaker
Tripping class
Max. rated current
Adjustment ranges
•
Thermal overload release
•
Undelayed overcurrent release
Rated ultimate short-circuit braking capacity
up to I
rated
Mechanical life
Contactor
Utilization category
to VDE 0660, Part 102 and IEC 60947-4.1
Max. permissible output of three-phase motors
(with 400 V AC )
Rated operating current I
Max. permissible switching rate at motor starting time
t
= 0.1 s and 50% relative ON period
a
Mechanical life
Operating delay of auxiliary contact
(including input delay of module)
•
From 0 to 1
•
From 1 to 0
Switching cycles
SIMATIC - EM 300 Motor Starters
GWA-4NEB 640070302-05
= 12 A
e
Technical Specifications
Class 10
12 A
0.14-0.2 A to 9-12 A
12 x I
(fixed)
rated
50 kA
> 100,000 switching cycles
AC-2, AC-3
5.5 kW
12 A
80/h
> 10 Mill. switching cycles
29 to 59 ms
26 to 34 ms
I
=
Breaking current
a
I
=
Rated operating current
e
P
=
Permissible output
N
of three phase motors
at 400 V
5-5
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