Siemens SINAMICS S120 Device Manual page 137

Note
Additional information
Detailed and comprehensive instructions and information for the circuit breaker as well as
the standard and additional options can be found in the enclosed operating instructions,
These operating instructions are available as additional documentation on the customer DVD
supplied with the device.
X50 "circuit breaker" checkback contact
Table 5- 6
Terminal
1
2
3
Max. connectable cross-section #14 AWG (2.5 mm²)
NC: normally-closed contact, NO: normally-open contact, COM: mid-position contact
1)
X30 looping in an external EMERGENCY OFF
Terminal block -X30 provides you with the option of connecting an external EMERGENCY
OFF (normally-closed contact) for switching off the circuit breaker.
Table 5- 7
Terminal
1
2
Max. connectable cross-section #14 AWG (2.5 mm²)
Cabinet Modules NEMA
Manual, 04/2014, A5E03586450A
Terminal block X50 "Circuit breaker" checkback contact
Designation Technical specifications
1)
NO "Circuit breaker" checkback contacts
NC Max. load current: 3 A
Max. switching voltage: 250 V AC
COM
Terminal block X30 "External EMERGENCY OFF" checkback contact
Technical specifications
Factory-installed jumper between terminal 1 and terminal 2; this jumper must be re-
moved if a normally-closed contact is looped in externally.
Cabinet Modules
5.1 Line Connection Modules
137