L25, Circuit Breaker In Withdrawable Unit Design - Siemens SINAMICS S120 Manual

Options

8.30 L25, circuit breaker in withdrawable unit design

Description
If the Basic Line Module or Smart Line Module is supplied via a separate transformer, or if
the supply system has a sufficiently low supply short-circuit power, the standard line reactor
can be omitted.
For the Line Connection Module with option L22, the standard line reactor is not supplied in
conjunction with the Basic Line Module (option L43).
The Smart Line Module with option L22 is supplied without a standard line reactor.
8.30 L25, circuit breaker in withdrawable unit design
Availability of option
This option is available for the following S120 Cabinet Modules:
● Line Connection Modules
Description
The circuit breaker in withdrawable unit design is available as an option for Line Connection
Modules with rated currents > 800 A. This breaker replaces the standard built-in circuit
breaker.
The draw-out circuit breaker features a visible isolating distance.
X50 "circuit breaker" checkback contact
Table 8- 48
Terminal
1
2
3
Max. connectable cross-section: 2.5 mm²
1)
Note
Additional information
Detailed and comprehensive instructions and information for the circuit breaker, as well as
the factory-installed options, can be found in the accompanying operating instructions, These
operating instructions are available as additional documentation on the customer DVD
supplied with the device.
474
Terminal block X50 "Circuit-breaker" checkback contact
Designation
1)
NC
NO
COM
NC: Normally-closed contact, NO: Normally-open contact, COM: Center contact
Technical data
"Circuit breaker" checkback contacts
Max. load current: 3 A
Max. switching voltage: 250 V AC
Cabinet Modules
Manual, 03/2013, A5E03263538A