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Installation
5.5 Connect to the energy supply network
DANGER
Danger to life if the electrical installation has not been carried out profession-
ally!
Installation that has not been carried out professionally or properly can cause serious
injuries or death. The whole electrical system can be destructed.
Ø
The electrical installation must only be carried out by a qualified electrician ob-
serving EN 60204.
Ø
The main switch has to be provided by the user.
NOTICE
Property damage due to wrong energy supply!
Wrong operating voltages, frequencies or currents can cause loss of power or dam-
ages to the machine.
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The conditions at the installation location must comply with the details on the mo-
tor data plate.
Ø
Permissible tolerances:
• ± 5 % voltage deviation
• ± 2 % frequency deviation
5.5.1 Connection of motor
1
). The
motors comply with DIN EN 60034 and are designed in protection class IP 55 and insulation class F. The
appropriate connection diagram is located in the terminal box of the motor (not existing for the version
with plug connection). Compare the motor data with the data of the existing mains network (current type,
voltage, network frequency, permitted current value).
b) Connect motor via motor protection circuit breaker (For strain relief provide for a screwed cable connec-
tion to connect the connecting cable).
We recommend using motor protection circuit breakers with delayed switch off, depending on a possible
excess current. Temporary excess current can occur when the machine is started under cold conditions.
5.6 Vacuum pump without vacuum relief valve (ZUV)
NOTICE
Property damage caused by improper installation!
Exceeding of the permissible end pressure can damage the machine.
Ø
In case of pumps that have been delivered without a vacuum relief valve (ZUV) the
user has to take measures that protect the pump from impermissible end pres-
sures. The permissible end pressure is specified on the data plate.