11/03
4.9
Other Connections
Depending on the options installed, further connections have to be established, for
example, main contactor, connection for external auxiliary equipment, main circuit-
breaker including fuses or circuit-breaker, EMERGENCY OFF button, cabinet
illumination with service socket, cabinet anti-condensation heating, contactor
combination (EMERGENCY OFF), thermistor motor protection unit, PT100
evaluation unit and insulation monitor.
Detailed information on connecting these options with interfaces can be found in
"Additional Operating Instructions" in the documentation folder.
4.9.1
Main Contactor (Option L13)
Description
The SINAMICS G150 cabinet unit is designed as standard without a line contactor.
Option L13 (main contactor) is needed if a switching element is required for
disconnecting the cabinet from the supply (necessary with EMERGENCY OFF).
The contactor is energized and supplied within the cabinet.
Connection
Table 4-16
Terminal
4
5
6
1)
NO: normally open contact, NC: normally closed contact, COM: mid-position
contact
Max. connectable cross-section: 4 mm² (AWG 10)
SINAMICS G150
Operating Manual
Terminal block X50 – checkback contact "main contactor closed"
1)
Designation
NO
NC
COM
Electrical Installation
Technical data
Max. load current: 10 A
Max. switching voltage: 250 V AC
Max. switching capacity: 250 VA
Required minimum load: ≥1 mA
4-25