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3VT5 Molded Case Circuit Breakers up to 1600 A
Accessories and Components
Motorized operating mechanism
6/34
Siemens LV 36 · 2008
6
Specifications
Recommended actuating pulses
Circuit breaker switched on/off by motorized operating mecha-
nism
Circuit breaker switched off by overcurrent or auxiliary releases
and switched on by motorized operating mechanism-S switch
permanently closed
Circuit breaker states and lever positions of circuit breakers
Description of charts
t
[ms]
1
0
1
0
1
0
HK
PS
20 …
∞
10000 … 12000
10000 … 12000
20 … 1500
> 100
> 20000
70
> 10000
NSO0_00479
IMP OFF
IMP ON
t
[ms]
1
0
1
0
1
0
HK
RS
R
8000
20 … 1500
> 20000
70
> 12000
NSO0_00480
OFF
IMP ON
Circuit breaker state
lever positions of circuit breakers
Switched on
Switched off by releases, or by TEST
button or by the trip push button on the
motor drive
Switched off manually or electrically by
drive
Symbol
Description
HK
main contacts
PS
auxiliary switch
RS
relative switch
R OFF
circuit breaker closing instant by release
IMP S
pulse to store up motor drive energy (generated by S
switch)
IMP ON
make pulse for motor drive
IMP OFF
break pulse for motor drive
X
random segment of time