14
Connecting Inlet Power
3.4.1
Replacing Fuses
Option 07 (IEC-320 power inlet connector):
includes a 1-A, 250-V fast acting fuse. The
fuse is contained in a small compartment with a snap-fit latch, which also has a compartment for
a spare fuse. Check Figure 3.1 for a fuse location diagram.
The fuse compartment is located directly adjacent to the input connector socket, and can be opened
by pulling both sides directly out away from the chassis, or by gently prying with a small flag-blade
screwdriver. To replace the fuse, first disconnect the line cord from the power source and then
remove the cord from the rear-panel IEC connector. The in-circuit fuse is the innermost one;
inspect it to determine if it is open. As required, replace with fuse in the outer compartment, and
replace the spent fuse.
Option 08 or Option 10 (terminal strip connector):
inlet power modules include separate,
threaded fuse holder adjacent to the terminal power strip – see Figures 3.2 and 3.3. See Table 3.2
for the correct fuse configured for your option.
To check or replace the fuse, first disconnect inlet power from the clock. Using a small flat-blade
screwdriver, turn the fuse cover counter-clockwise (CCW) and it should pop outward. Replace fuse
only with another of the same type and rating.
