Circuit Breakers - Siemens SENTRON 3WL Reference Manual

3WL Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC)

Circuit breakers

( 2 8 )
( 2 7 )
( 2 6 )
( 2 5 )
( 2 4 )
( 2 3 )
( 2 2 )
( 2 1 )
( 2 0 )
( 1 9 )
( 1 8 )
( 1 7 )
( 1 6 )
Guide frames
( 1 8 )
( 1 7 )
( 1 6 )
( 1 5 )
( 1 4 )
( 1 3 )
( 1 2 )
( 1 1 )
( 1 0 )
3WL Air Circuit Breakers
( 1 ) (1) Arc chute
(2) Carrying handle
(3) Labeling plate
( 2 )
(4) Motor shutdown switch (option) or
"Electrical ON" (option)
(5) Name plate for circuit breaker
( 3 )
(6) Memory status indicator
( 4 )
(7) "Mechanical ON" button
(8) Rated current indication
( 5 )
(9) Positioning pictogram
(10) Operating cycles counter (option)
( 6 )
(11) Hand-operated lever
(12) Crank handle
( 7 )
(13) Withdrawable unit drive shaft
(14) Equipment plate
(15) Ground terminal
( 8 )
(16) Position indicator
(17) Table for ground-fault protection
( 9 )
(18) Safety lock for crank handle (option)
(19) Mechanical unlocking of crank handle
( 1 0 ) (option)
( 1 1 )
(20) Solid-state release
(21) Rated current module
(22) "Mechanical OFF" button or
"EMERGENCY-STOP" mushroom
( 1 2 )
pushbutton (option)
( 1 3 )
(23) Ready-to-close indicator
( 1 4 )
(24) Switch position indicator
( 1 5 )
(25) "Tripped" indicator (reset button)
(26) "Secure OFF" locking device (option)
(27) Operator panel
(28) Male connector for auxiliary circuit
connections
(1) Arc chute cover
(option)
(2) Blow-out openings
( 1 )
(3) Opening for crane hook
( 2 )
(4) Shutter (option)
(5) Locking device (shutter) (option)
(6) Type plate for guide frame
( 3 )
(7) Isolating contacts
(8) Ground terminal Ø 14 mm
(9) Locking device for racking rail
(10) Locking device against movement when
( 4 ) control cabinet door is open (option)
(11) Door interlocking for guide frame (option)
( 5 )
(12) Racking rail
(13) Factory-set rated current coding
( 6 )
(14) Sliding contact for breaker grounding
(option)
( 7 )
(15) Equipment-dependent coding (option)
(16) Shutter actuator (optional)
(17) Position indicator switch (optional)
(18) Sliding contact module for auxiliary
( 8 )
conductors (number depends on
equipment)
( 9 )
Siemens · 2009
General data
11