SIEMENS
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Siemens MD 50.1 · 2015
Motor options
Mechanical design
Motor connection and terminal boxes
11
■
Connection, circuit and terminal boxes
(continued)
Cable entry NPT
The cable entry with national pipe thread (NPT) can be ordered
as an option.
The dimensions of terminal boxes can be found in
chapter
Motors from page 8/42
.
External grounding
IEC 60034 specifies additional external grounding for motors
with ratings of 100 kW and higher. For motors, sizes 63 up to 160,
this is optionally available.
Motors in sizes 180 to 250 are supplied as standard with external
grounding.
Maximum conductor connection for external grounding
Modular system in combination with motor connection and terminal box for motor size 63 to 200
Modular system in combination with motor connection and terminal box for motor size 225 to 250
Motor size
Terminal box type
63
...
71
gk127
1)
80
...
90
TB1E10
100
...
112
TB1F10
132
TB1H10
160
TB1J10
180
TB1K01
200
TB1L01
225
TB1L01
250
TB1N01
Order code:
Cable entry NPT
M45
Order code:
External grounding
N53
Motor size
Thread size
63
…
90
M4
100
…
112
M5
132
…
180
M6
200
2 x M6
225
...
250
2 x M8
Modular system
Encoder
system
Brake
Self ventilation
Forced ventilation
Back-
stop
Second
shaft
extension
Without
manual
release
With manual release
Microswitch
Without locking
mechanism
With locking
mechanism
Air flow
monitoring
1)
Wear
monitoring
Terminal box
✓
✓
✓
✓
✓
On request
✓
✓
✓
Motor plug
✓
✓
✓
✓
-
On request
✓
✓
✓
1)
Not in conjunction with L4, L8, L16
Modular system
Encoder
system
Brake
Self ventilation
Forced ventilation
Back-
stop
Second
shaft
extension
Without
manual
release
With manual
release
Microswitch
With locking
mechanism
Fan monitoring
Wear monitoring
Terminal box
✓
✓
✓
✓
On request
✓
✓
✓
© Siemens AG 2015