5.4 Connecting to the mains power supply
DANGER
Danger to life from electric shock
Touching exposed and voltage-bearing elements causes an electric shock. Improper connection of
the mains supply leads to the risk of touchable live housing parts. There is a risk to life.
► Before the installation, check that the connection leads are voltage-free.
► Make sure that electrical installations are only carried out by qualified electricians.
► Provide adequate grounding for the device.
► After connection work, carry out an earthed conductor check.
NOTICE
Risk of property damage from excess voltage
Incorrect or excessive mains voltage will destroy the motor.
► Always observe the motor rating plate specifications.
► Route the mains connection in accordance with locally applicable provisions.
► Always provide a suitable mains fuse to protect the motor and supply cable in the event of a fault.
NOTICE
Property damage from the voltage range being set incorrectly
Recommissioning after longer downtimes of the vacuum pump or after changing the oil requires the
current settings to be checked.
► Before switching the vacuum pump on each time, check the currently set voltage range.
► Make changes to the voltage range only after the vacuum pump has been disconnected from the
mains.
115
23
0
115
2
3
0
1
15
230
Fig. 4:
Voltage selector switch
Switch position:
"115"
"230"
Voltage range
90 – 126 V, 50/60 Hz
180 – 254 V, 50/60 Hz
Tbl. 5:
Permissible voltage ranges for reversible single phase motor
Required tool
● Slot screwdriver
Accessories required
● Mains cable
Installation
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