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Siemens D 83.1 · 2016
3
Motors without Explosion Protection
LOHER CHEMSTAR and VARIO 1PS0 motor series
General information
■
Technical specifications
LOHER CHEMSTAR and VARIO 1PS0 motor series
without explosion protection
The motors of series 1PS0 without explosion protection are avail-
able as LOHER CHEMSTAR and VARIO motors. Motors that op-
erate in a "safe" or "non-explosive" environment do not require
any special mechanical and electrical protection against explo-
sive gas, vapor or dust. There is no risk of explosion in this case.
The CHEMSTAR motors can be mechanically designed in
accordance with VIK specifications ("Verband der Industriellen
Energie- und Kraftwirtschaft e. V.", the Association of the Indus-
trial Energy and Power Industry). These motors therefore corre-
spond mechanically to the VIK recommendation, they have no
Ex marking and are not permitted to be used in potentially explo-
sive atmospheres of Zone 2. VIK motors with Ex certification are
available for selection in series 1PS1.
In general, these motors are suitable for applications in produc-
tion plants or process engineering equipment in factories (con-
veyor belts, elevators and cranes, escalators and water pumps).
General technical specifications
LOHER CHEMSTAR and VARIO 1PS0 motors
Motor type
A...A
Frame size
90 … 500
Power range
(50 Hz types)
0.37 … 1400 kW (thermal utilization in
accordance with temperature class B
at ambient temperature = 40 °C
Number of poles
2- to 12-pole, also higher number
of poles for special versions
Pole-changing:
• 2 speeds, e.g. 4-/2-pole, 8-/4-pole,
12-/6-pole
• 3 speeds, e.g. 8-/4-/2-pole,
8-/6-/4-pole Dahlander or separate
windings for square-law or constant
torques
Voltage range
Up to 1000 V
Rated voltage
Normal low voltage
Non-standard voltage and/or frequency
as required by the customer
Operating mode
S1 and others
Degree of protection
IP55, IP56 and IP65 to IP68
Cooling method
IC 411, IC 416,
special cooling methods such as
non-ventilated
IC 410
IC 71W water-jacket-cooled
Type of construction
All common types of construction +
special types of construction
Enclosure
Cast-iron or steel
Bearings
Roller bearings (standard) and special
bearings for high axial and radial forces
Types of protection
None
Noise level
All motors are noise-optimized (noise
values in accordance with EN 60034-9)
Low-noise version for 2-pole motors
(GG3) is possible as an option
© Siemens AG 2016