ABB Emax E1 Installation And Service Instructions Manual page 66

Low voltage air circuit-breakers emax series
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Circuit diagram symbols (IEC 60617 and CEI 3-14 ... 3-26 Standards)
Model
L6555
Shield
(may be drawn
in any shape)
Time delay
Mechanical or electrical
connection
Manual mechanical control
(general case)
Rotating control
Pushbutton control
Equipotentiality
Galvanically separated
converter
Shielded cable conductors
(i.e., 3 conductors shown)
Conductors or stranded
cables (i.e., 3 conductors
shown)
Connection of conductors
Terminal
Plug and socket
(male and female)
Motor
(general symbol)
Current transformer
Voltage transformer
Winding of three-phase tran-
sformer, Star connection
Make contact
Break contact with
automatic circuit
breaking
Change-over contact
Make position contact (limit
contact)
Break position contact (limit
contact)
Apparatus
Doc. no.
Change-over position con-
tact with momentary circuit
breaking (limit contact)
Power isolator with automa-
tic breaking action
Switch-disconnector
Control coil
(general symbol)
Instantaneous overcurrent
relay
Overcurrent relay with adju-
stable short time-delay trip
Overcurrent relay with
inverse short time-delay tripa
tempo breve inverso
Overcurrent relay with inver-
se long time-delay trip
Earth fault overcurrent relay
with inverse short time delay
Fuse (general symbol)
Current sensor
Emax
1SDH000460R0002
Scale
Page No
66/74

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