6
5
SERVICING
5.1
Fuse Replacement
There are no serviceable components in these PSU's other than to replace the fuses – see Fig. 5.1. These fuses must be replaced
only with those stated in the specification. If a fault occurs the PSU should be returned to the nearest ABB Service Centre, or
returned to the factory for repair.
Fig. 5.1 Changing Fuses
TB1
T1
L N E
F2 F3
6
8
10
230 V
115 V
TB2
F1
B
A
C
X
D
E
F4
AUX 10V
+
–
+
–
Switch off and disconnect
the mains supply
1
2
Remove the four screws and lift
off the cover.
Replace fuse(s)
3
Note. Suitable fuses may be obtained
from ABB with the following part numbers:
F1..............0231555 (400 mA cartridge)
F2 & F3....0231577 (250 mA 1500 A
hbc cartridge)
F4.............0231599 1 A (F.B.) 250 V
4
Replace cover, connect to mains power source
and switch on.
