Siemens SENTRON VL Series System Manual page 24

3WL air circuit breakers
3.1 Introduction and overview
①
②
③
④
⑤
⑥
⑦
⑧
⑨
⑩
⑪
⑫
⑬
Figure 3-1
24
Guide frame
Main front terminal, flange,
horizontal, vertical
Position signaling switch
Grounding contact, leading
Shutters
COM15 PROFIBUS module or
COM16 Modbus RTU module
External CubicleBUS modules
Switch-on solenoid, auxiliary release
Auxiliary conductor plug-in system
Auxiliary switch block
Door sealing frame
Locking set base plate
Transparent insert, function insert
3WL air circuit breakers, accessories
⑭
Key-operated EMERGENCY STOP
pushbutton
⑮
Motorized operating mechanism
⑯
Switching cycles counter
⑰
Breaker Status Sensor (BSS)
⑱
Overcurrent release (ETU)
⑲
Reset solenoid
⑳
Breaker Data Adapter PLUS (BDA PLUS)
Four-line LCD module
Ground-fault protection module
Rated current module
Metering function module
3WL air circuit breakers
3WL/3VL circuit breakers with communication capability - PROFIBUS
System Manual, 03/2011, A5E01051353-02