Technical Data
Diaphragm Vacuum Pump N 828 / N 838
10
Translation of original Operating and Installation Instructions, english, KNF 121249-121517 09/19
Pneumatic connections
Pump type
Value
N 828 AN_ / N 828 KN_
N 838 AN_ / N 838 KN_
N 838.1.2 KNE
N 838.1.2 KNDC-B /
N 838.1.2 KN.29DC-B
Thread size G 1/8
Tab. 7
Electrical Parameter
Pumps with AC motor, Pumps with DC motor
Parameter
Value
Voltage / Frequencies
See Type plate
Max. operating current
Pump power consumption
Motor protection class:
N 828 AN_ / N 828 KN_ / N 838
AN_ / N 838 KN_
IP 00
Motor protection class:
N 838.1.2 KNE
IP 20
Maximum permissible mains
voltage fluctuations
± 10%
Tab. 8
Pumps with brushless DC motor
Parameter
Value:
N 828 KNDC-B
N 828 KN.29DC-B
Value:
N 838 KNDC-B
N 838 KN.29DC-B
Value:
N 838.1.2 KNDC-B
N 838.1.2 KN.29DC-B
Voltage [V]
24
24
24
Control voltage
(only .29 version)
[V]
0.
1…5*
0.
1…5*
0.
1…5*
Max. operating
current [A]:
-
for p > p
atm.
-
for p < p
atm.
2.4
2.0
2.4
2.2
4.2
3.9
Starting current
The starting current can be up to 50% above the maximum operating
current.
Starting ramp
[ms]
800
800
800
Max. power con-
sumption of the
pump [W]:
-
for p > p
atm.
-
for p < p
atm.
57.6
48.0
57.6
52.8
100.8
93.6
Maximum permis-
sible mains volt-
age fluctuations
± 10%
± 10%
± 10%
Motor protection
class
IP 20
IP 20
IP 20
Overcurrent limi-
tation of the motor
electronics [A]
7.5
7.5
7.5
Tab. 9
*further control voltage versions on demand