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3VT1 Molded Case Circuit Breakers up to 160 A
Project planning aids
2/36
Siemens LV 36 · 2008
2
4-pole version
Fixed-mounted version
• Front connection
- terminals N, 1, 3, 5
3VT9 100-8CE30 and 3VT9 100-8CE00 phase barriers or
3VT9 100-8CA40 terminal covers always have to be used (if
3VT9 100-4TF40 connecting sets are used to connect the
circuit breaker/switch disconnector, the terminal cover is in-
cluded in the connecting set)
- Terminals N, 2, 4, 6
3VT9 100-8CE30 and 3VT9 100-8CE00 phase barriers or
3VT9 100-8CA40 terminal covers always have to be used,
the circuit breaker/switch disconnector is connected to the
power supply via terminals N, 2, 4, 6 (if 3VT9 100-4TF40 con-
necting sets are used to connect the circuit breaker/switch
disconnector, the terminal cover is included in the connect-
ing set)
• Rear connection
- Phase barriers or covers must be used.
>15
H
Reference Size
mm
A
50 minimum distance between the circuit breaker/switch dis-
connctor and uninsulated earthed wall (applicable for
connection by means of insulated conductors, cables,
flexibars or connection)
A1
100 minimum insulation length of bare conductors (using
3VT9 100-8CE30 and 3VT9 100-8CE00 phase barriers
from 50 mm to max. 100 mm, or by means of additional
insulating of conductors over the barriers at least to the
value of A1)
A2
150 minimum distance:
• between circuit breaker/switch disconnector and uninsu-
lated earthed wall (applicable for uninsulated conduc-
tors and busbars)
• between circuit breaker/switch disconnector and a bus-
bar
• between two circuit breakers/switch disconnectors in-
stalled vertically one above the other
• between uninsulated leads of two circuit breakers/switch
disconnectors
C, D, E, F,
G
30 minimum distance between circuit breaker/switch discon-
nector and uninsulated earthed wall
H
minimum distance between uninsulated conductors
NSO0_00012
100
TEST
OFF
ON
TEST
OFF
ON
TEST
OFF
ON
H = 30
130
B =
20
A = 50
A1 = 100
A2 = 150
B = 20
75
75
100
B = 20
E = 70 G = 40
F = 0
G = 0
1
1
1
3VT9 100-8CE30