List of abbreviations
C.1 Table of abbreviations
Air circuit breaker 3WL10
Manual, 11/2017, L1V30499596002-01
227
Symbol/
abbreviation
Meaning
I
sc
Prospective current
I
sd
Short-time delayed tripping current; response current of S protection; short-time
delayed short-circuit release; short-time delayed short-circuit protection; delay time
of S protection
I
th
Conventional free-air thermal current
I
U
Rated uninterrupted current
R
A
Contact resistance of exposed conductive part ground
t
1
Time of inrush current
t
2
Ramp up time
t
A
Safety clearance
t
g
Delay time associated with the adjustable response current; trip time associated
with ground-fault current setting value
T
p
Trip time; delay time; time-lag class
t
r
Trip time associated with current setting value of adjustable overload protection
t
sd
Trip time associated with short-time delayed tripping current; delay time of
S protection
U
Voltage across main contacts of the molded case circuit breaker
U
e
Maximum voltage; rated operational voltage
U
Nn
Nominal system voltage
U
s
Rated control supply voltage
Summary of Contents for SENTRON 3WL10
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Page 8: ...Table of contents Air circuit breaker 3WL10 6 Manual 11 2017 L1V30499596002 01 ...
Page 170: ...Operation 6 3 Troubleshooting Air circuit breaker 3WL10 168 Manual 11 2017 L1V30499596002 01 ...
Page 180: ...Technical specifications Air circuit breaker 3WL10 178 Manual 11 2017 L1V30499596002 01 ...
Page 199: ...Air circuit breaker 3WL10 Manual 11 2017 L1V30499596002 01 197 Circuit diagrams 10 ...
Page 212: ...Circuit diagrams Air circuit breaker 3WL10 210 Manual 11 2017 L1V30499596002 01 ...
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