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3VT2 Molded Case Circuit Breakers up to 250 A
Circuit breakers · Switch disconnectors
3/12
Siemens LV 36 · 2008
3
■
Technical specifications
✔
available
-- unavailable
+ in preparation
Specifications
Circuit breakers
Switch disconnectors
Standards
EN 60947-2, IEC 60947-2
EN 60947-3, IEC 60947-3
Approval marks
Number of poles
3, 4
Rated current
I
n
A
100, 160, 200, 250
--
Rated uninterrupted current
I
u
A
250
Rated operational current
I
e
A
--
250
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
--
Utilization category (switching mode)
AC 690 V
--
AC-23 B
DC 440 V
--
DC-23 B
Rated short-time withstand current U
e
= AC 690 V
I
cw
/t
2,5 kA/1 s
3 kA/5 s
Series U
e
3VT2 N
3VT2 H U
e
--
Rated ultimate short-circuit breaking capacity (rms value)
1)
I
cu
60 kA
36 kA
16 kA
10 kA
100 kA
65 kA
25 kA
13 kA
AC 230 V
AC 415 V
AC 500 V
AC 690 V
--
Rated short-circuit service breaking capacity (rms value)
I
cs
/U
e
30 kA
18kA
8kA
5kA
50 kA
36 kA
13 kA
8 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 4 kA/AC 15 V
4 kA/AC440 V
Off-time at
I
cu
ms
10
--
Losses per pole at
I
n
= 250 A
W 18
Mechanical endurance
cycles 30 000
Electrical endurance (U
e
= AC 415 V )
cycles 3 000
Switching frequency
cycles
/hr
120
Operating force
N 80
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
Pollution degree
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 release/with signal switch
✔
Undervoltage release/with leading switch/with signal switch
✔
/
✔
Front manual operating mechanism/lateral operating mechanism
at the right/left hand side
✔
/
✔
Mechanical interlocking of manual operating mechanisms,
by Bowden wire
✔
/
✔
Motorized operating mechanism/with operations counter
✔
/
✔
Locking-type knob
✔
Bolt sealing inset/additional cover for overcurrent release
✔
/
✔