Siemens WL - Page 50

Circuit Breaker
WL Circuit Breaker
WL Selection and Application Guide • August 2005
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1 Arc chute
2 Handle
3 ID label
4 Motor switch (optional) or
“electrical CLOSE” (optional)
5 Type label of circuit breaker
6 Spring charge indicator
7 “Mechanical CLOSE” button
8 Rated current data
9 Racking handle operation diagram
10 Operations counter (optional)
11 Charging lever
12 Racking handle
13 Transport shaft for
drawout unit
14 Equipment label
15 Grounding terminal
16 Position indicator
17 Ground fault protection table
18 Racking handle safety lock
(optional)
19 Mechanical interlock release of
racking handle (optional)
20 Electronic trip unit
21 Rating plug
22 “Mechanical OPEN” button or
“emergency OPEN” mushroom
head pushbutton (optional)
23 Ready-to-close indicator
24 Contact position indicator
25 Trip indicator (reset button)
26 Locking device - Breaker OFF
(optional)
27 Front panel
28 Terminal strip for auxiliary
contacts
1 Arc chute cover (option)
2 Hole for crane hook
3 Arc vent openings
4 Shutter (option)
5 Locking device shutter (option)
6 Mutual mechanical circuit breaker
interlocking (option)
7 Locking device guide rail
8 Door interlocking guide frame
(option)
9 Locking device in DISCONNECT
position (option)
10 Guide rail
11 Shutter operating device (option)
12 Interlocks (option)
13 Position signaling switch (option)
14 Secondary disconnects
Circuit Breaker
Guide Frame
NSE00965
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WL_SA_intro-sec1.qxd 2/7/05 1:26 PM Page 48