
WARNING!
Danger of electric shock
A mains voltage may exist inside the motor or electrical ancil‐
laries.
–
If the housing of the motor or electrical ancillaries has
been damaged, you must disconnect it from the mains
immediately. Only return the pump to service after an
authorised repair.
Personnel:
n
Electrician
What requires electrical installation?
n
Motor
n
External fan (optional)
n
Stroke control drive (optional)
n
Stroke adjusting drive (optional)
n
Stroke sensor (optional)
n
Pacing relay (option)
n
Frequency converter (optional)
WARNING!
–
Protect power end motors using a suitable motor protec‐
tion switch. Only use motor protection permitted for this
kind of application with Ex"e" motors. (Protection against
heating from overloading)
–
Ensure that motors are only installed and inspected by a
"recognisably trained" skilled operative in areas at risk
from explosion.
–
Observe the enclosed operating instructions for the Ex
motor.
CAUTION!
Provide appropriate motor protection devices (e.g. motor pro‐
tection switch with thermal overcurrent trip) to protect the
motor against overloading. Fuses do not provide motor pro‐
tection.
CAUTION!
The pump can be damaged
The pump can be damaged if the motor drives the pump in
the wrong direction.
–
When connecting the motor, pay attention to the correct
direction of rotation indicated by the arrow on the fan
cover, as shown in .
Install an electrical isolating device in the mains supply
cable, e.g. a mains switch, to be able to switch off the pump
independently of the entire installation (e.g. for repair).
Motor
P_SI_0012_SW
Fig. 13: Direction of rotation of motor
Installation
21
Содержание Sigma / 2 Basic Type SBKa
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