Users Manual

Description
2.2 Circuit breakers and non-automatic circuit breakers
3WA Air Circuit Breakers
Equipment Manual, 05/2021, 92310000002-03
27
2.2.2 Design
2.2.2.1 Circuit breakers
(1) Arc chute (16) Locking provision for racking handle
(option)
(2)
Carrying handle
(17)
Label
(3)
Labeling plate
(18)
Voltage tap module VTM (optional)
(4) Motor disconnect switch (option) or
local electric close (S10) (option)
(19) Mechanical unlatching of the racking
handle
(5)
Circuit breaker rating label
(20)
Query button
(6)
Spring charge indicator
(21)
Electronic trip unit ETU
(7)
Local mechanical close
(22)
Operating keys ETU600
(8) Max. rated circuit breaker current (23) Mechanical OPEN button or Emergency
OPEN button (mushroom pushbutton, option)
(9)
Charging handle
(24)
Switch position indicator
(10)
Operating cycles counter (option)
(25)
Trip indicator ETU TRIP (reset button)
(11) Racking handle (26) Trip indicator EXT TRIP (reset button),
optional
(12)
Ground connection
(27)
Ready-to-close indicator
(13) Retractable shaft (only withdrawable
version)
(28) Operator panel
(14)
Accessory label
(29)
Locking provision Safe Open (option)
(15) Position indicator (30) Base part for secondary disconnect
terminal