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3VT3 Molded Case Circuit Breakers up to 630 A
Circuit breakers · Switch disconnectors
4/15
Siemens LV 36 · 2008
4
1)
Only for 4-pole design of the 3VT3 763-.AA36-0AA0 switching unit.
■
Functions
States of auxiliary switches in the switching unit accessory compartment
0 = contact open, 1 = contact closed
1)
Accessory compartment 6, 7, 8, 9 are only for 4.pole design
Location switches in accessory compartments, see page 4/54.
MP
3VT9 300-3M..0 motorized operating mechanism
M
motor
P
storage device
X3
connector to connect control circuits
X4
connector for external operations counter
S5
switch to signal AUTO (NO-C) / MANUAL (NC-C) modes
S6
switch to signal full storage (ready to switch on: NO-C)
YC
external operations counter, 3VT9 300-3MF10
B
recommended wiring of the control circuits - not included
with drive
ON, OFF
pushbutton
S
switch for energy storage
(switched on = automatic storage, switch may be
continuously switched on)
Q3
motorized operating mech. circuit breaker, see page
4/64
J
3VT3 switching unit
Q
main contacts
T1, T2, T3, T4
1)
current transformers
V
trip-free mechanism
3VT9 325-6..00
2)
3VT9 363-6DT00circuit breaker - overcurrent release -
ETU LP, DP, MDP switch-disconnector - switch-discon-
nector unit
TEST
pushbutton to test release
3VT9 300-4PA30 plug-in device
3VT9 300-4WA30 withdrawable device
X1, X2
3VT9 300-4PL001 connecting cable
SO1, SO2, SO3 contacts signalling position of circuit breaker/switch-
disconnector in 3VT9 300-4WL00 plug-in or withdraw-
able device, see pages 4/44, 4/45
3VT9 300-1U.00 undervoltage release
3VT9 300-1S.00 shunt release
3VT9 300-1U.10 undervoltage release with leading contact
3VT9 300-2AJ00 leading contact
Cicuit breaker state
Lever positon of circuit breaker
State of the main contacts
Accessory compartment
1
2
3, 4, 5
(6 ... 9)
1)
10
2 and 3 2 and 3 2 and 3 1
2
3, 4, 5
(6 ... 9)
1)
3VT9 300-2AC10
3VT9 300-2AD10
3VT9 300-2AC10
3VT9 300-2AD10
3VT9 300-2AC10
3VT9 300-2AD10
3VT9 300-2AJ00
3VT9 300-1U.10
3VT9 300-2AG10
3VT9 300-2AF10
3VT9 300-2AE10
3VT9 300-2AH10
3VT9 300-2AH10
3VT9 300-2AH10
Switched on
1
1 0 0 1 1 0 1 0 1 1 0 1 0 0 1 0 0 1 1 0
Switched off manually or
electrically by operating
mechanism
0
1 0 0 1 0 1 0 1 0 0 1 0 1 1 1 0 0 1 0 1
Switched off by over-
current release
0
0 1 1 0 0 1 0 1 0 0 1 0 1 1 0 1 1 0 0 1
Switched off by auxiliary
release or by TEST button
or the trip pushbutton on
the motorized operating
mechanism
0
1 0 1 0 0 1 0 1 0 0 1 0 1 1 1 0 1 0 0 1