ST750 GENERAL HANDBOOK
667/HB/33750/000 Page 115 Issue 6
Aux. Supply Fuse (If Din Rail
Mounted) e.g. OTU/OMU
518/4/90638/000
5A HRC cartridge fuse to BS1361 marked
‘OTU/AUX’ on Master Switch Panel.
Aux. Supply Fuse (If Phase Drive
PCB Mounted) e.g. OTU/OMU
518/4/97052/017
5A HRC cartridge fuse size 0 (32mm x 6.4mm)
marked ‘F4’ on Phase Drive PCB
Controller Switch Fuse
518/4/97056/012
16A HRC cartridge fuse size 0 (32mm x 6.4mm)
marked ‘F1’ on Phase Drive PCB
AC Detector Fuse
518/4/90301/010
5A cartridge fuse (20mm x 5mm) marked ‘F3’ on
Phase Drive PCB.
Solar Cell Fuses
518/4/90301/010
5A cartridge fuse (20mm x 5mm) marked ‘F2’ on
Phase Drive PCB.
230V R/A Supply Fuse
518/4/90301/013
10A cartridge fuse (20mm x 5mm) marked ‘F9’
on Phase Drive PCB.
230V Green Supply Fuse
518/4/90301/013
10A cartridge fuse (20mm x 5mm) marked ‘F7’
on Phase Drive PCB.
230V R/G Supply Fuse
518/4/90301/013
10A cartridge fuse (20mm x 5mm) marked ‘F10’
on Phase Drive PCB.
48V R/G Supply Fuse
518/4/90301/013
10A cartridge fuse (20mm x 5mm) marked ‘F11’
on Phase Drive PCB.
230V Amb/Wait Supply Fuse
518/4/90301/013
10A cartridge fuse (20mm x 5mm) marked ‘F8’
on Phase Drive PCB.
48V Wait Supply Fuse
518/4/90301/013
10A cartridge fuse (20mm x 5mm) marked ‘F6’
on Phase Drive PCB.
Input Protection and Audible
Supply Fuse
518/4/90285/004
0.5A cartridge fuse (20mm x 5mm) marked ‘F1
and Inputs’ on CPU PCB.
Handset Fuse
518/4/90285/004
0.5A cartridge fuse (20mm x 5mm) marked ‘F2
and Handset’ on CPU PCB.
TEST Phase Drive PCB Fuses
518/4/97020/115
4 off 3.15A fuses used for initial testing on a
rewired junction for self test. These fuses are for
the temporary replacement of the fuses in
positions F6 to F11 on the Phase Drive PCB.
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