126 / 267
3VT3 Molded Case Circuit Breakers up to 630 A
Accessories and Components
Manual/motorized operating mechanisms
4/6
Siemens LV 36 · 2008
4
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Overview
Manual operating mechanisms
The rotary operating mechanism is necessary to be completed:
• For simple rotary operation of the switch unit:
- 3VT9 300-3HE10 or 3VT9 300-3HE20 black knob or
- 3VT9 300-3HF20 red knob
• For operating through the switchgear cabinet door:
- 3VT9 300-3HJ.. extension shaft
- 3VT9 300-3HG/HH.. coupling driver
- 3VT9 300-3HE/HF.. knob.
Mechanical interlocks and mechanical interlocks for parallel
switching
• Mechanical interlocks for fixed-mounted design have to be
completed by:
- 2 x 3VT9 300-3HA/HB.. rotary operating mechanisms
- 2 x 3VT9 300-3HE/HF.. knobs
• Mechanical interlocking by Bowden wire is intended for
fixed-mounted, plug-in and withdrawable designs
• Mechanical interlocks have to be completed by:
- 2 x 3VT9 300-3HA/HB..manual operating mechanism
- 1 x 3VT9 300-3HE/HF.. knob
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Selection and ordering data
Version
Color
DT Order no.
PS*
Weight
per PU
approx.
kg
Manual operating mechanisms
Rotary operating mechanism
• locking not possible
gray
B
3VT9 300-3HA10
1 unit
0.243
• lockable with padlock
gray
B
3VT9 300-3HA20
1 unit
0.243
• lockable with padlock
yellow label
B
3VT9 300-3HB20
1 unit
0.243
Knobs for manual operating mechanism
• locking not possible
black
B
3VT9 300-3HE10
1 unit
0.075
• lockable with padlock
black
B
3VT9 300-3HE20
1 unit
0.075
• lockable with padlock
red
B
3VT9 300-3HF20
1 unit
0.075
Coupling driver for door-coupling operating mechanism
To be used with the
3VT9 300-3HE10 or 3VT9 300-3HE20
black knob
• degree of protection IP40
black
B
3VT9 300-3HG10
1 unit
0.140
• degree of protection IP66
black
B
3VT9 300-3HG20
1 unit
0.140
• degree of protection IP40
black
3VT9 300-3HG30
Is used in combination with the
3VT9 300-3HF20 red knob
• degree of protection IP40
yellow
B
3VT9 300-3HH10
1 unit
0.140
• degree of protection IP66
yellow
B
3VT9 300-3HH20
1 unit
0.140
• degree of protection IP40
yellow
3VT9 300-3HH30
Extension shaft
length 365 mm, may be shortened
B
3VT9 300-3HJ10
1 unit
0.205
Extension shaft, telescopic
,
length 245 ... 410 mm
B
3VT9 300-3HJ20
1 unit
0.255
* You can order this quantity or a multiple thereof.