Siemens ETU776 - Trip Unit Indicators and Status; Activation, Alarm, and Communication Indicators; Extended Protective Function Status

6 WL Circuit Breaker Selection and Application Guide
WL Circuit Breaker
Superior individual products for low-voltage power distribution systems
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1. Guide Frame (for drawout version only)
2. Vertical to Horizontal BUS Connector
3. Position Signaling Switch
4. Breaker / Guide Frame Grounding Contact
5. Shutter (locking)
6. MODBUS or PROFIBUS Communications
7. External CubicleBUS I/O Module
8. Plug-In Open and Closed Solenoids)
9. Multiple Secondary Connections
10. Auxiliary Switch Block
11. Door Sealing Frame
12. Interlocking Set Base Plate
13. Protective Cover for OPEN/CLOSE Buttons
14. Multiple Key Locking Accessories
15. Single Bolt Motor Operator Installation
16. Operations Counter
17. Breaker Status Sensor (BSS)
18. Complete Trip Unit Family
19. Remote Reset
20. Breaker Data Adapter (BDA) for
Internet Connection
21. Multi Angle LCD Module
22. Ground Fault Protection Module
23. Rating Plug
24. Metering Function (+ wave forms
and harmonics)
25. Circuit Breaker
Courtesy of NationalSwitchgear.com