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3VT5 Molded Case Circuit Breakers up to 1600 A
Circuit breakers · Switch disconnectors
6/12
Siemens LV 36 · 2008
6
■
Dimensional drawings
A, B, C - minimum deionization space, free of earthed metal
parts
Use of phase barriers and terminal covers with circuit breakers
and switch disconnectors.
Fixed-mounted design
Front connection
• terminals 1, 3, 5 (upper side)
3VT9 500-8CE30 phase barriers must always be installed on cir-
cuit breakers/switch disconnectors.
• Terminals 2, 4, 6 (bottom side)
- a) If circuit breakers/switch disconnectors are connected to
the supply using terminals 2, 4, 6, 3VT9 500-8CE30
phase barriers must always be installed on it.
- b) If circuit breakers/switch disconnectors are connected on
the bottom side using clamp or block type terminals,
3VT9 500-8CE30 phase barriers must always be installed on
it.
Rear connection
• terminals 1, 3, 5 (upper side)
3VT9 500-8CD30 insulating covers or 3VT9 500-8CE30
phase barriers must always be installed on the circuit
breaker/switch disconnector.
We recommend installing 3VT9 500-8CG30 insulating grommets
with all sets for rear connection.
• terminals 2, 4, 6 (bottom side)
If circuit breakers/switch disconnectors are connected to the
bottom side using clamp or block type terminals,
3VT9 500-8CD30 phase barriers must always be installed on it.
We recommend installing 3VT9 500-8CG30 insulating grommets
with all sets for rear connection.
Withdrawable version
Front connection
• terminals 1, 3, 5 (upper side)
If the withdrawable device is connected on the upper side using
clamp or block type terminals, 3VT9 500-8CF30 phase barriers
must always be installed.
In all other cases, we recommend installing 3VT9 500-8CC30
insulating covers on the upper side of the device.
• terminals 2, 4, 6 ( bottom side)
If the withdrawable device is connected to the bottom side using
clamp or block type terminals, 3VT9 500-8CF30 phase barriers
must always be installed.
’
In all other cases, we recommend installing 3VT9 500-8CC30
insulating covers on the bottom side of the withdrawable device.
NSO0_00522
OFF
ON
210
350
A = 100
50
B = 310
C = 134.5