AEG Protect 1.150 Manuel D’Utilisation

 
 

32 

Preparation for the three-phase mains connection 
Before connection work is performed on the UPS, make sure 
that: 

♦  The values of the nominal voltage (supply) and frequency 

match those on the nameplate of the UPS.  

♦  The earth connection matches the prescribed IEC 

standards or the local regulations, 

♦  The UPS can be connected to the electrical mains via a 

separate supply line equipped with fuses in the supply-
side MI distribution.  

♦  Back-up fuses or line safety switches are used that 

correspond to the values listed in chapter 5.2.2. 

♦  The connection cable from the back-up fuse to the UPS 

is configured with a minimum cross-section acc. to 
chapter 5.2.2 “Connection Cross-Sections and Fuse 
Protection”. 

 

The UPS can be live, and the voltage can be 
dangerous. The unit may only be installed and 
if necessary opened by trained and qualified 
personnel. Repairs may only be carried out by 
qualified customer service staff! 

Connection of the Three-Phase Input Mains Voltage 
In order to ensure the safety of personnel during installation 
work, make sure that the connections are made under the 
following conditions: 

♦  No mains voltage present. 
♦  The loads are switched off. 
♦  The PROTECT 1. is switched off (display completely 

blank). 

To disconnect the PROTECT 1, carry out the following steps as 
well: 

♦  Place the “maintenance switch” manual bypass on the back 

of the UPS in the “bypass” position. To do this, first remove 
the 4 screws of the cover (no.

 

3, p. 27/28).