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3VT3 Molded Case Circuit Breakers up to 630 A
Circuit breakers · Switch disconnectors
4/12
Siemens LV 36 · 2008
4
■
Technical specifications
✔
available,
-- unavailable,
+ in preparation
1)
In case circiut breaker connection is reversed (input terminals 2, 4, 6
output terminals 1, 3, 5),
I
cu
does not change.
Specifications
3VT3 763-2AA36/46/56-0AA0,
3VT3 763-3AA36/46/56-0AA0
Circuit breakers
Switch disconnectors
Type
Standards
EN 60 947-2, IEC 947-2
EN 60 947-3, IEC 947-3
Approval marks
Number of poles
3, 4
Rated current
I
n
A 250, 315, 400, 500, 630
--
Rated uninterrupted current
I
u
A 630
Rated operational current
I
e
A --
630
Rated operational voltage U
e
V
AC max. 690
AC max. 690
DC max. 440
Rated frequency f
n
Hz
50/60
Rated impulse withstand voltage U
imp
kV 8
Rated insulation voltage U
i
V
690
Utilization category
• selectivity AC 690 V
A
--
• switching mode AC 690 V
DC 440 V
--
--
AC-23 B
DC-23 B
Rated short-time withstand current U
e
= AC 690 V
I
cw
/t
8 kA/50 ms, 7 kA/300 ms, 6.5 kA/1 s
7,5 kA/5 s
Series U
e
3VT3 N
3VT3 H U
e
--
Rated ultimate short-circuit breaking
capacity (rms value)
1)
I
cu
60 kA
36 kA
20 kA
15 kA
100 kA
65 kA
35 kA
20 kA
AC 230 V
AC 415 V
AC 500 V
AC 690 V
--
Rated short-circuit breaking
capacity (rms value)
I
cs
/U
e
40 kA
18 kA
10 kA
8 kA
75 kA
36 kA
20 kA
15 kA
AC 230 V
AC 415 V
AC 500 V
AC 690 V
--
Rated short-circuit making capacity
(peak value)
I
cm
/U
e
75 kA/
140 kA
AC 415 V
14 kA/AC 415 V
14 kA/AC 440 V
Off-time at
I
cu
ms
10
--
Losses per pole at
I
n
= 250 A
W 75
Mechanical endurance
cycles 20000
Electrical endurance (U
e
= AC 415 V )
cycles 5000
Switching frequency
cycles/
hr
120
Operating force
N 110
Front-side device protection
IP40
Terminal protection
IP20
Operating conditions
Reference ambient temperature
°C 40
Ambient temperature range
°C -40 ... +55
Working environment
dry and tropical climate
Degree of pollution
3
Max. elevation
m 2000
Seismic resistance
Hz
3g ( 8 ... 50 )
Design modifications
Front/rear connection
✔
/
✔
Plug-in design
✔
/+
Withdrawable design
✔
/+
Accessories
Switches-auxiliary/relative/signal/leading
✔
/
✔
/
✔
/
✔
Shunt trip/with signal switch
✔
Undervoltage release/with leading switch, with signal
switch
✔
/
✔
Front man. oper. mechanism/ lateral oper. mech. ri./left
✔
/
✔
Mechanical interlocking to the man.oper. mechanism,
by Bowden wire
✔
/
✔
Motorized oper. mechanism with operations counter
✔
/
✔
Locking-type lever
✔
Bolt sealing insert/additional cover for overcurrent
release
✔
/
✔