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3VT1 Molded Case Circuit Breakers up to 160 A
Project planning aids
2/35
Siemens LV 36 · 2008
2
■
Dimensional drawings
Phase barriers and terminal covers
3-pole version
Fixed-mounted version
• Front connection
- Terminals 1, 3, 5
3VT9 100-8CE30 phase barriers or 3VT9 100-8CA30 termi-
nal covers have to be used (when using 3VT9 100-4TF30
connection sets for connecting circuit breakers/switch dis-
connectors, the terminal cover is included in the connecting
set).
- Terminals 2, 4, 6
3VT9 100-8CE30 phase barriers or 3VT9 100-8CA30 termi-
nal covers have to be used if the circuit breaker/switch dis-
connector is connected to the power supply using terminals
2, 4, 6 (when using 3VT9 100-4TF30 connection sets for con-
necting circuit breaker/switch disconnector, the terminal
cover is included in the connecting set).
• Rear connection
- phase barriers and covers must be used.
H
>15
Reference Size
mm
A
50 minimum distance between the circuit breaker/switch dis-
connector and uninsulated earthed wall (applicable for
connections using insulated conductors, cables, flexibars
or with rear connection)
A1
100 minimum insulation length of bare conductors (using
3VT9 100-8CE30 phase barriers from 50 mm to max. 100
mm, or by adding additional insulation for the conductors
with barriers to obtain at least A1 value)
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 busbar
• between two circuit breakers/switch disconnectors situ-
ated vertically above one another
• between uninsulated connections of two circuit
breakers/switch disconnectors above one another
C, D, E, F,
G
30 minimum distance between the circuit
breaker/switch disconnector 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