
Wiring
SIMATIC - EM 300 Motor Starters
GWA-4NEB 640070302-05
2-3
Motor starter EM 300 with braking contact
The 400 V power supply for the motor and the 24 V DC power supply for the
brake are fed to the load through a common cable and connector. There is a dan-
ger of voltage overspill if the cable is flattened. Do not therefore connect loads
with degree of protection "extra-low voltage" to the braking circuit.
In order to avoid voltage overspill in case of fault the supply voltage for the
brake must be drawn from a power supply unit with safe electrical isolation
(PELV).
Motor starter EM 300 without braking contact
The braking supply voltage of motor starters without a 24 V braking contact is
internally not looped through. The 24 V DC braking voltage must then be drawn
from the power supply unit again.
Unused connections
Seal unused connections with caps, only then is degree of protection IP 65
guaranteed (order number 3 RK1 902-0
CK
00 (1 piece) or 3 RK1 902-0
CJ
00
(10 pieces).
Содержание SIMATIC EM 300
Страница 40: ...Commissioning SIMATIC EM 300 Motor Starters 3 12 GWA 4NEB 640070302 05 ...
Страница 46: ...Hand held Controller SIMATIC EM 300 Motor Starters 4 6 GWA 4NEB 640070302 05 ...
Страница 58: ...SIGUARD Safety Integrated SIMATIC EM 300 Motor Starters 6 4 GWA 4NEB 640070302 05 ...
Страница 64: ...Dimension Drawings SIMATIC EM 300 Motor Starters B 2 GWA 4NEB 640070302 05 ...
Страница 70: ...Selection Help SIMATIC EM 300 Motor Starters D 4 GWA 4NEB 640070302 05 ...
Страница 72: ...SIMATIC EM 300 Motor Starters Index 2 GWA 4NEB 640070302 05 ...
Страница 74: ...GWA 4NEB 640070302 05 ...