Siemens Sentron 3VA Manual page 475

Symbol/
abbreviation
t
i
t
ld
T
p
t
sd
t
S
t
ZSI
U
U
e
U
Nn
3VA molded case circuit breakers with UL and IEC certification
Manual, 01/2019, L1V30435333-01
Meaning
"Virtual" trip time of I protection; highest trip time associated with rated tripping
current of instantaneous trip
Trip time associated with current setting value of adjustable overload release
Trip time; delay time; time-lag class
Trip time associated with short-time delayed tripping current; delay time of S pro-
tection
Fuse operating time
Delay time of all molded case circuit breakers which detect the short circuit but do
not receive a blocking signal when ZSI is activated.
Voltage across main contacts of the molded case circuit breaker
Maximum voltage; rated operating voltage
System rated voltage
List of abbreviations
C.1 Table of abbreviations
473