User Manual

Table Of Contents
RBS 2107
External Earth-fault Circuit Breakers
If external earth-fault (ground-fault) circuit breakers are used, then the
recommended minimum trip value is 100 mA.
Mains Fuses
Table 14 Mains Fuses Recommendation
Minimum for Safe
Function
Recommended for
Maximum Selectivity
Maximum Allowed
Fuse Rating
16 A
(1)
/ 35 A 20 A
(1)
/ 35 A 63 A
(1) High line 180 V AC three-phase/single phase.
7.2 Battery Backup
Battery backup is used to power the RBS 2107 during mains failure and also to
protect the RBS 2107 from short interruptions in the mains supply.
Internal Battery Backup
The following battery backup levels can be achieved in the cabinet:
Full: 4-hour backup time
Half: 2.5-hour backup time
External Battery Backup
Using a special adapter plate, the RBS 2107 can be installed on top of the
external battery backup BBS 9500. The battery power cables are connected to
the RBS 2107 through the DC filter.
7.3 Output Power to Transmission Equipment
The RBS can supply the transmission equipment with power according to the
table below.
Table 15 Output Power
48 V DC
Max. 200 W
+24 V DC
Max. 250 W
-48 V DC and +24 V DC
Max. 250 W
24 (28)
E
N/LZT 720 0491 Uen R2A