Motor Mounting Instructions; Motor Mounting - BUSCH COBRA NC 400 B Supplément Au Manuel D'installation Et De Maintenance

Highest permis-
sible motor power
COBRA
Frequency
for direct network
connection
50 Hz
NC 400 B
60 Hz

Motor mounting instructions

Before the mounting of the motor, the coupling must be installed bet-
ween the motor and the vacuum pump. Respect the Installation and
Operating Instructions of the coupling. Regarding the explosion pro-
tection, the coupling must show at least the same protection degree
like the vacuum pump for the outside category ("outside" (o)). See the
nameplate of the vacuum pump. Concerning the explosion group and
the temperature class, a higher protection degree can be applied. But
only Busch original couplings should be used.

Motor mounting

The motor is fixed to the center flange of the pump thank to 4 screws.
Installation
Seite/ Page/ Page 16
Highest permis-
sible motor power
using a frequency
converter
11 kW 15 kW
11 kW 15 kW
4x