Diaphragm Vacuum Pump N 828 / N 838
Technical Data
Translation of original Operating and Installation Instructions, english, KNF 121249-121517 09/19
11
For pumps with AC motor:
The pumps are fitted with a thermal switch to protect against
overloading.
WARNING
Automatic starting can cause personal injury and
pump damage
When the operation of the pump is interrupted by the
thermal switch, the pump will restart automatically
after cooling down.
➔
Take all necessary care to prevent this leading
to a dangerous situation.
For N 828 KNDC-B, N 828 KN.29DC-B, N 838 KNDC-B,
N 838 KN.29DC-B, N 838.1.2 KNDC-B,
N 838.1.2 KN.29 DC-B:
The pump is protected against overheating by a temperature
sensor on the motor board and equipped with overcurrent pro-
tection.
If one of these safety functions is triggered or if the maximum
blocking time of the rotor is exceeded due to a fault, the pump
will be shut down and must be manually reset, as follows:
➔
Separate pump from the mains.
➔
Remove the cause(s) of the fault before restarting.
Weight
Pump type
Wert
N 828 AN_ / N 828 KN_
2.2 kg
N 838 ANE / N 838 KNE
2.6 kg
N 838.1.2 KNE
4.4 kg
N 838 ANDC / N 838 KNDC
2.4 kg
N 828 KNDC-B /
N 828 KN.29DC-B
2.0 kg
N 838 KNDC-B /
N 838 KN.29DC-B
2.5 kg
N 838.1.2 KNDC-B /
N 838.1.2 KN.29DC-B
3.0 kg
Tab. 10
Thermal switch
