Motor voltage [V], ±10 % Frequency [Hz] Rated (nominal) current
[A]
Recommended fuse,
slow-blow [A]
115/230
115/230
50
60
2.1/1.4
1.9/1.6
6/4
6/4
220 – 240
220 – 240
50
60
1.15
1.0
2.5
2.5
Tbl. 4:
Recommended fuse values for on-site protection
0
I
115
2
3
0
1
1
5
230
Fig. 9:
Voltage selector switch on the terminal box
Switch position: "115"
"1"
"230"
"2"
Voltage range
Motor 115/230 V
115 V ±10 %,
50/60 Hz
230 V ±10 %,
50/60 Hz
Voltage range
Motor 100/200 V
100 V ±10 %,
50/60 Hz
200 V ±10 %,
50/60 Hz
Tbl. 5:
Permissible voltage range for reversible single-phase motor
Required tool
● Screwdriver
Change over the voltage range for vacuum pumps with reversible motor
1. The mains voltage must be determined on-site each time before the vacuum pump is installed or
moved to a different location.
2. Disconnect the vacuum pump from the mains.
3. Set the required voltage range on the voltage selector switch using a suitable screwdriver.
5.5 Filling the operating fluid
WARNING
Danger of poisoning from toxic vapors
Igniting and heating synthetic operating fluid generates toxic vapors. Danger of poisoning if inhaled.
► Observe the application instructions and precautions.
► Do not allow tobacco products to come into contact with the operating fluid.
NOTICE
Risk of damage due to the use of non-approved operating fluid
Product-specific performance data are not achieved. All liability and warranty claims against Pfeiffer
Vacuum are also excluded.
► Only use approved operating fluids.
► Only use other application-specific operating fluids after consultation with Pfeiffer Vacuum.
Installation
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