WEG SSW-07 User Manual - page 26
of
53
Chapter 3 - INStaLLatION aND CONNeCtION
25
English
3.3.3 Symbols
Electrical connection between
two signals
Fuse
Connection terminals
Thyristor/SCR
Relay or contactor coil
M
3~
Three-phase motor
Normally open contact (NO)
Transformer
Indicator light
N.O Contact (with retention)
Circuit-breaker
(opens under load)
Normally closed (NC)
push-button
Resistor
Normally open (NO)
push-button
Capacitor
Circuit-breaker with
undervoltage release