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page 8 of 24
No. 47800-2-02-5
Technical data
We reserve the right for technical modifications without prior notice!
Type
MD 4U NT
Maximum pumping speed 50/60 Hz (ISO 21360)
m
3
/h
3.8 / 4.3
Ultimate vacuum (absolute) without gas ballast
mbar
1
Ultimate vacuum (absolute) with gas ballast
mbar
3
Maximum permissible inlet pressure (absolute)
bar
1.1
Maximum permissible outlet pressure (absolute)
bar
1.1
Maximum permissible pressure (absolute) at
gas ballast valve
bar
1.2
Permissible ambient temperature
storage / operation
°C
-10 to +60 / +10 to +40
Permissible relative atmospheric moisture during
operation
(no condensation)
%
30 to 85
Rated motor power
kW
0.25
No-load speed 50/60 Hz
min
-1
1500 / 1800
Maximum permissible range of supply voltage
(+/- 10% ) dual voltage motor
Attention: Observe specifications on rating
plate!
100-115 V~ 50/60 Hz
120 V~ 60 Hz
200-230 V~ 50/60 Hz
Maximum rated current at:
100-115 V~ 50/60 Hz 120 V~ 60 Hz
200-230 V~ 50/60 Hz
A
A
5.7
3.0
Device fuse
slow blow fuse 6.3A
Motor protection
thermal cutout, manual reset
Degree of protection IEC 529
IP 40
Inlet
small flange KF 16
Outlet
silencer
Dimensions L x W x H approx.
mm
325 x 239 x 198
Weight approx.
kg
16.4
