L2275
Emax
125/132
Doc. N°
Mod.
Apparatus
Scale
Page N°
RH0109002
Graphic symbols for electrical circuit diagrams (IEC 60617 and CEI 3-14...3-26 Standards)
Shield (can be
drawn in any shape)
Timing
Mechanical connection
Manual mechanical operating
mechanism (general case)
Rotary handle operating
mechanism
Pushbutton operating
mechanism
Equipotentiality
Terminal or clamp
Socket and plug
(female and male)
Motor
(general symbol)
Current transformer
Voltage transformer
Three-phase transformer
winding, star connection
Changeover position contact
with momentary trip
(limit switch)
Power molded case switch
with automatic opening
Molded case switch
Control coil
(general symbol)
Instantaneous trip unit
Trip unit with short
adjustable time-delay
characteristic
Converter separated
galvanically
Conductors in shielded cable
(e.g. three conductors)
Conductors or corded cables
(e.g. 3 conductors)
Connection of conductors
Make contact
Break contact with
with automatic trip
Changeover contact
Closing position contact
(limit switch)
Opening position contact
(limit switch)
Trip unit with inverse
short time-delay
characteristic
Trip unit with inverse
long time-delay characteristic
Trip unit for ground fault with
inverse short time-delay
characteristic
Fuse
(general symbol)
Current sensor
Thermal effect
Electromagnetic effect
Mechanical interlock
between two power
circuit breakers