13 | Technical Data
66 / 68 0870211676_RA0760A_PLUS_-0004_IM_en
13 Technical Data
RA 0760 A
Nominal pumping speed
(35Hz / 60Hz)
m³/h 440 / 760
Ultimate pressure hPa (mbar) abs. 0.1
Nominal motor rating
(35Hz / 60Hz)
kW 18.5
Permitted motor speed range
(35Hz … 60Hz)
min
-1
700 … 1200
(factory setting ► speed control mode at
60Hz)
Power supply voltage V 3~ 380-460 ±10%
Power supply frequency Hz 50 / 60
Max. intensity A 50
Circuit breaker (MCCB) A 80 (ICC 20 kA)
Noise level (ENISO2151) dB(A) <70
Water vapour tolerance max. (with gas ballast
valve)
hPa (mbar) 40
Water vapour capacity (with gas ballast valve)
(value at 60Hz)
kg / h 22
Max. allowable gas inlet temperature °C ≤50 hPa (mbar) ► 150
>50 hPa (mbar) ► 80
Ambient temperature range (air-cooled vacuum
pump)
°C 5 ... 40
Ambient temperature range (water-cooled va-
cuum pump)
°C 5 ... 46
Ambient pressure Atmospheric pressure
Relative humidity at 30°C 80%
Oil capacity l 17.0
Weight approx. kg 1050
14 Oil
VM 100 VSC 100 VSB 100
ISO-VG 100 100 100
Oil type Mineral oil Synthetic oil Synthetic oil
Part number 1L packaging 0831 000 060 0831 168 356 0831 168 351
Part number 5L packaging 0831 000 059 0831 168 357 0831 168 352
Part number 10L packaging - 0831 210 162 -
Part number 20L packaging - 0831 168 359 0831 168 353
In case of unfavourable ambient temperature, other oil viscosities may be used. Please consult your Busch repre-
sentative for more details.
To know which oil has been filled in the machine, please refer to the nameplate (NP).
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