11/03 Electrical Installation
SINAMICS G150
Operating Manual
4-27
-A1-X40 15 11
L1N
-X542
23
TM31
"Operation"
-A1-A60
Circuit proposal
-K155
-X155
11 12
Fig. 4-6 Circuit proposal for controlling the auxiliary conductor from within the converter
NOTE
If 230 V AC is applied to the relay outputs, the customer terminal block must also
be grounded via a 6 mm² protective conductor.
4.9.3 Main Circuit-Breaker incl. Fuses/Circuit-Breaker (Option L26)
Description
The main circuit-breaker of cabinet units with an output current of up to 800 A is a
load interruptor with externally mounted fuses. Cabinets with an output current
greater than 800 A are fitted with a circuit-breaker instead of a load interruptor.
Connection
Table 4-18 Terminal block X50 – checkback contact “main circuit-breaker/circuit-breaker
closed“
Terminal Designation
1)
Technical data
1 NO
2 NC
3 COM
Max. load current: 10 A
Max. switching voltage: 250 V AC
Max. switching capacity: 250 VA
Required minimum load: ≥1 mA
1)
NO: normally open contact, NC: normally closed contact, COM: mid-position
contact
Max. connectable cross-section: 4 mm² (AWG 10)
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