SIEMENS
2/120
Siemens D 83.1 · 2016
2
Motors with Explosion Protection
LOHER CHEMSTAR and VARIO 1PS1 motor series
Special versions
Special mechanical designs
(continued)
Shaft of material 1.7225
W51
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
–
–
–
–
Shaft of material 1.4021
W52
✓
✓
✓
✓
✓
✓
✓
✓
✓
O. R.
O. R.
O. R.
O. R.
O. R.
–
–
–
–
Shaft end of stainless steel butt-welded
(material 1.4571)
W53
✓
✓
✓
✓
✓
✓
✓
✓
✓
O. R.
O. R.
O. R.
O. R.
O. R.
–
–
–
–
Shaft made of special steel –
down to -40 °C only
L72
–
–
–
–
–
–
–
–
–
–
–
–
–
–
✓
✓
✓
✓
Welded standard stator enclosure for surface-
cooled motors – factory clarification required
because of possible dimension deviations
W54
–
–
–
–
O. R.
O. R.
O. R.
O. R.
O. R.
O. R.
O. R.
O. R.
O. R.
O. R.
Welded copper bar rotors
W55
–
–
–
–
–
–
–
–
–
–
–
–
–
✓
Second shaft extension for IM B3 up to 100 %
torque; cylindrical with feather key
Q21
–
–
–
–
–
–
–
–
–
–
–
–
–
–
✓
✓
✓
✓
Special rotors for heavy duty starting
(e.g. double-cage rotor or brass rotor) –
type test needed
Q22
–
–
–
–
–
–
–
–
–
–
–
–
–
–
✓
✓
✓
✓
Generator design (asynchronous) with
1.8 times runaway speed –
only 4-pole and higher
W56
–
–
–
–
–
–
–
–
–
–
–
–
–
✓
–
–
–
–
IP56 degree of protection
K51
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
IP65 degree of protection
K50
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
IP66 degree of protection
L94
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
–
–
–
–
IP67 degree of protection
K93
–
–
–
–
–
–
–
–
–
–
–
–
–
–
O. R.
O. R.
O. R.
O. R.
IP67 degree of protection without level switch
(resin material for terminal box protection will
be shipped as extra package, 8 m submerged,
72 h max.)
W58
O. R.
O. R.
O. R.
O. R.
O. R.
O. R.
O. R.
O. R.
O. R.
✓
✓
✓
✓
✓
✓
✓
✓
✓
Condensation drainage holes sealed with
screw
W60
–
–
–
–
–
–
✓
✓
✓
✓
Increased tropicalization, humidity
80% –
LOHER CHEMSTAR incl.
V10
and
W71
,
LOHER VARIO incl.
V10
and
P45
W61
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
Tropical design for outdoor onshore installation
L28
–
–
–
–
–
–
–
–
–
–
–
–
–
–
✓
✓
✓
✓
Design without fan and fan cover – motor
mounted in air stream; without external air
stream cooling, factory clarification required
due to derating
W62
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
O. R.
O. R.
O. R.
O. R.
Fan with anti-corrosion protection
in case of metal fan
W63
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
Fan of aluminum
W64
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
–
–
–
–
–
–
–
Fan of steel
W65
O. R.
O. R.
O. R.
O. R.
O. R.
✓
✓
✓
✓
✓
✓
✓
✓
✓
External fan of brass
W66
O. R.
O. R.
O. R.
O. R.
O. R.
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
External fan of stainless steel
V94
–
–
–
–
–
–
–
–
–
–
–
–
–
–
✓
✓
✓
✓
Special ventilation for on-deck motors
W67
–
–
–
–
–
–
✓
✓
✓
✓
✓
✓
✓
✓
O. R.
O. R.
O. R.
O. R.
Fan cover of steel sheet (3 mm thick)
W68
O. R.
O. R.
O. R.
O. R.
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
O. R.
O. R.
O. R.
O. R.
Galvanized fan cover –
included in
K30
and
W09
W69
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
O. R.
O. R.
O. R.
O. R.
Noise class 3 for clockwise direction
of rotation viewed onto DE –
for 2-pole motors only
K37
–
–
–
–
–
✓
✓
✓
✓
✓
✓
✓
✓
✓
–
–
–
–
Noise class 3 for counter-clockwise
direction of rotation viewed onto DE –
for 2-pole motors only
K38
–
–
–
–
–
✓
✓
✓
✓
✓
✓
✓
✓
✓
–
–
–
–
Clockwise, viewed onto DE – direction of
rotation must be specified for motors from
frame size 355 2-/4-pole
K97
–
–
–
–
–
–
–
–
–
–
–
–
–
Special versions
Additional
identification
code
-Z
with
order code
and
plain text if
required
Motor series
LOHER CHEMSTAR
LOHER VARIO
Frame size
1PS1. . . - . . . . . - . . . . -Z
71
80
90
100
112
132
160
180
200
225
250
280
315
355
355
400
450
500
For legends and footnotes, see Page 2/124.
© Siemens AG 2016