Siemens SENTRON 3WA1 - Design; Circuit Breakers

Description
2.2 Circuit breakers and non-automatic circuit breakers
3WA1 air circuit breaker
28 Equipment Manual, 02/2023, 92310000002-06
2.2.2 Design
2.2.2.1 Circuit breakers
(1)
Arc chute
(16)
Locking provision for racking handle
(option)
(2)
Carrying handle
(17)
Voltage tap module VTM (option)
(3)
Labeling plate
(18)
Mechanical unlatching of the racking
handle
(4)
Motor disconnect switch (option) or
local electric close (S10) (option)
(19)
Query button
(5)
Circuit breaker rating plate
(20)
Electronic trip unit ETU
(6)
Spring charge indicator
(21)
Operating keys ETU600
(7)
Local mechanical close
(22)
Mechanical OPEN button or
Emergency OPEN button (mushroom
pushbutton, option)
(8)
Max. rated circuit breaker current
(23)
Switch position indicator
(9)
Charging handle
(24)
Tripped indicator ETU TRIP (reset
button)
(10)
Operating cycles counter (option)
(25)
Trip indicator EXT TRIP (reset button),
optional
(11)
Racking handle
(26)
Ready-to-close indicator
(12)
Ground connection
(27)
Operator panel
(13)
Retractable shaft (only withdrawable
version)
(28)
Locking provision Safe Open (option)
(14)
Accessory label
(29)
Base part for secondary disconnect
terminal
(15)
Position indicator