21/1531-ASP11301 Uen B3 2016-02-17
18
C
ABLING
Figure 11: Labeling of cables
3.3 CONNECTING
INTERNAL POWER CABLES
For instructions on how to connect mains cable to the AC/DC unit, refer to manufac-
turer instructions supplied with the unit.
Refer to local regulations when working with electric power.
3.3.1
CONNECTING THE BATTERIES TO THE AC/DC UNIT
Work involving batteries must be carried out by persons with appropriate technical
training and experience necessary to be aware of hazards to which they can be
exposed.
The battery fuse/circuit breaker is located in the power supply unit. It means that the
conductor connected to the negative pole of the battery and to the battery fuse/circuit
breaker is an unfused battery conductor.
It is extremely hazardous to work with unfused battery conductors.
Note:
Before battery conductors are connected, disconnected, or installed, remove the
conductor to the negative pole (A) or remove an interconnection bridge (B), see
Figure 12: Example of Removing the Negative Battery Conductor (A) and an
Interconnecting Bridge (B) on page 18.